Number Of Taps Research Articles

Using of Residual Number System as a Mathematical Basis for Software Defined Radio

Introduction. Іn the classic view, program-defined radio system (Software Defined Radio, SDR) is a central processor, equipped with receiving and transmitting units. In order to speed up computational operations in SDR systems, it is proposed to use the system of residual classes as a mathematical basis. The results of research conducted by various groups of scientists in order to find ways to improve the performance of computing tools, methods of organizing an effective system for detecting and correcting errors, as well as building reliable computer systems, make it possible to assert that, within the limits of positional number systems, no fundamental changes can be expected in these areas without a significant increase in operating frequencies and hardware complications. The advantage of this method is that a software radio system can consist of several FPGAs and serve several independent radio channels, and reprogramming the properties allows you to change the number and components of message processors depending on current operating conditions. Research method. The equations in this section show the parallel nature of the RNS, free from bit transfers. These operations are called modular, because for it takes only one clock cycle to process the numerical values. To convert numbers from the binary position number system to RNS we use an algorithm based on the application of a distributed arithmetic. However, operations such as division, comparison of two numbers, and the detection of a sign are laborious and expensive in RNS Several decisions were proposed for these problem operations. They consist in the absence of the process of converting a residue into a binary system (reverse transformation) by using digital-to-analog converters in RNS. On the other hand, choosing the right set of modules is another important issue for building an effective RNS with a sufficient dynamic range. Results and analysis. Summing up some results, it can be noted that the system of residual classes allows to significantly improve the parameters of a computer in SDR especially in functional block a Direct Digital Synthesizers (DDS) in comparison with a computer built on the same physical and technological basis, but in a positional system calculation, and also to receive new more progressive constructive and structural solutions. The experimental results shows that the presented techniques offer interesting advantages for FIR filters characterized by high dynamic range and high number of taps especially when full custom multipliers are not available in the target FPGA architecture or when they must to be used for different purposes. Conclusion. Thus, the proposed system introduces clear advantages over existing systems and shows performance advantages and can be used to build modern communication systems. The proposed architecture reduces the size of the pipeline adders and multipliers which is a very important factor in the design SDR for fast work.

ASSESSMENT OF THE IMPACT OF ADMISSIBLE CONCENTRATIONS OF FORMALDEHYDE ON THE FUNCTIONAL STATE OF THE CENTRAL NERVOUS SYSTEM IN ADOLESCENTS

Formaldehyde is the one of the most dangerous toxic substances to human health. The purpose of research is to evaluate the functional state of the central nervous system in children with different levels of excretion of formaldehyde. There were examined 220 children (100 boys and 120 girls) aged of 11-17 years. There was used a complex of psychophysiological methods allowing to study cognitive features, power and performance of the central nervous system. Among the cognitive functions there were studied: gnosis (the perception and processing of information); sensorimotor coordination, attention. The formaldehyde concentration in urine was found to be in the range of values of conditional norms. Children were distributed into three groups in dependence on the formaldehyde concentration in urine. Children with the lowest level of excretion of formaldehyde were noted to possess an average speed of visual-motor reaction, a high level of sensorimotor coordination, middle level of the volume, distribution and shiftability of attention. In children with intermediate values of formaldehyde there were revealed the functional level of the system assessed as low, impaired performance of the CNS and sensorimotor coordination, shiftability of attention below average. The functional state of the central nervous system in children with the most high urinary excretion of formaldehyde, corresponding to the upper range of values, was differed by the low functional level of the system, decreased performance and sensorimotor coordination, volume, distribution and shiftability of attention below average level. In children from this group there was established the negative correlation between the concentration of formaldehyde in the urine and indices of the tapping test (the number of taps, the initial rate of speed). The tests revealed psychophysiological signs of the deterioration in the functional state of the central nervous system in children with the increasing of formaldehyde concentration in the urine.

Growth and Yield Response to Fertilizer Application and Nutritive Quality of Huckleberry (Solanum scabrum Mill.) Varieties Cultivatedin the Mount Cameroon Region

This study evaluated the effects of fertilizer on growth, yield and the nutritive value of three varieties of huckleberry (“White stem”, “Bamenda” and “Foumbot”). The treatments were NPK (20:10:10) at levels 0, 100, 150, 200Kg/ha and 10 Mg/ha poultry manure and the experiment was a randomized complete block design with three replicates. The Kjeldahl procedure was used for crude protein determination. The lipid content was determined with the soxlet reflux heat extraction method. The ß-carotene content was determined using spectrophotometry. Results indicated that plants supplied with 200 Kg NPK/ha fertilizer treatment had the highest plant height (66 cm) and leaf number (242) in “White stem” and “Bamenda” varieties respectively and these were significantly different from the control (P = 0.05). Leaf area was highest in “Foumbot” variety (343.1 cm2). The longest tap root length and number of primary lateral roots were noted particularly in “White stem” control plants and this was significantly different (P = 0.05) from plants supplied with fertilizers. Plants supplied with 10 Mg/ha poultry manure recorded the highest total yield for “White stem” (44.83 Mg/ha) while plants supplied 200 Kg NPK/ha had maximum yield for the “Bamenda” and “Foumbot” varieties (36.96 and 31.84 Mg/ha respectively). The “White stem” variety had the highest crude protein (303.8 mg/100 g) and ß-carotene content (1.9 mg/100 g); “Bamenda” variety had the highest total lipid (8.15%), and crude fibre (14.15%) contents, while total ash was highest in “Foumbot” (16.54%). Appropriate fertilizer levels would considerably improve huckleberry yield as well as improve income of vegetable farmers.

Motor Task-Dependent Dissociated Effects of Transcranial Random Noise Stimulation in a Finger-Tapping Task Versus a Go/No-Go Task on Corticospinal Excitability and Task Performance.

Background and Objective: Transcranial random noise stimulation (tRNS) is an emerging non-invasive brain stimulation technique to modulate brain function, with previous studies highlighting its considerable benefits in therapeutic stimulation of the motor system. However, high variability of results and bidirectional task-dependent effects limit more widespread clinical application. Task dependency largely results from a lack of understanding of the interaction between externally applied tRNS and the endogenous state of neural activity during stimulation. Hence, the aim of this study was to investigate the task dependency of tRNS-induced neuromodulation in the motor system using a finger-tapping task (FT) versus a go/no-go task (GNG). We hypothesized that the tasks would modulate tRNS’ effects on corticospinal excitability (CSE) and task performance in opposite directions.Methods: Thirty healthy subjects received 10 min of tRNS of the dominant primary motor cortex in a double-blind, sham-controlled study design. tRNS was applied during two well-established tasks tied to diverging brain states. Accordingly, participants were randomly assigned to two equally-sized groups: the first group performed a simple motor training task (FT task), known primarily to increase CSE, while the second group performed an inhibitory control task (go/no-go task) associated with inhibition of CSE. To establish task-dependent effects of tRNS, CSE was evaluated prior to- and after stimulation with navigated transcranial magnetic stimulation.Results: In an ‘activating’ motor task, tRNS during FT significantly facilitated CSE. FT task performance improvements, shown by training-related reductions in intertap intervals and increased number of finger taps, were similar for both tRNS and sham stimulation. In an ‘inhibitory’ motor task, tRNS during GNG left CSE unchanged while inhibitory control was enhanced as shown by slowed reaction times and enhanced task accuracy during and after stimulation.Conclusion: We provide evidence that tRNS-induced neuromodulatory effects are task-dependent and that resulting enhancements are specific to the underlying task-dependent brain state. While mechanisms underlying this effect require further investigation, these findings highlight the potential of tRNS in enhancing task-dependent brain states to modulate human behavior.

50-km C-Band Transmission of 50-Gb/s PAM4 Using 10-G EML and Complexity-Reduced Adaptive Equalization

In this paper, we experimentally demonstrate the transmission of 50-Gb/s four-level pulse-amplitude modulation (PAM4) signal over 50-km standard single mode fiber (SSMF) in C-band using electroabsorption modulated laser and PIN/APD detector with 8.5/6 GHz bandwidth. A simplified Volterra-DFE filter is proposed, which reduces the required tap number by ∼70% compared with traditional DFE and Volterra filtering. Experimental results show that by using 86-tap equalization, a sensitivity of –15 and –14 dBm can be achieved at the FEC limit of 1 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−3</sup> in back to back (BtB) and 50-km SSMF transmission cases. In addition, by replacing the PIN-TIA with a 10-Gb/s APD-ROSA for detection, the sensitivity can be further increased by 5.5 and 3 dB for BtB and 50-km SSMF transmission cases, respectively.

Foot Tapping Test as Part of Routine Neurologic Examination in Degenerative Compression Myelopathies: A Significant Correlation between 10-sec Foot-tapping Speed and 30-m Walking Speed.

Introduction Leg spasticity in degenerative compression myelopathy causes impairment of fast and rapid repetitive movements, which tends to appear despite the disproportionate paucity of clinical weakness. As clinically useful measures used to quantify the slowness of voluntary leg movements in this pathological condition, we compared the foot tapping test (FTT) with the simple walking test, which is now considered the gold standard in this field. Methods We compared the FTT with the simple walking test, the grip-and-release test, and the functional scales of Nurick and the Japanese Orthopedic Association (JOA) in 77 patients with cervical compression myelopathy and 56 age-matched healthy subjects. The FTT was conducted on both sides separately, and the subject, while being seated on a chair, moved his/her toes up and down repeatedly to tap the floor as fast and as vigorously as possible for 10 sec with his/her heels planted on the floor. Results The number of 10-sec foot tapping in the patient group significantly correlated with the Nurick grades (r = −0.566; P < 0.0001), the JOA scores (r = 0.520; P < 0.0001), and the grip-and-release rates (r = 0.609; P < 0.0001). It also significantly correlated with the 30-m walking time (r = −0.507; P < 0.0001) and the number of steps taken (r = −0.494; P < 0.0001). Assessments of wheelchair-dependent patients and side-to-side comparison, in which the simple walking test plays no role, revealed significantly fewer FTT taps in wheelchair-bound patients than in the ambulatory patients and a significant trend for cervical compression myelopathy to dominantly affect the upper and lower limbs on the same side. Conclusions This study contributes to the reassessment of the currently underutilized FTT as part of a routine neurologic examination of degenerative compression myelopathy.

Advanced Adaptive Photonic RF Filters with 80 Taps Based on an Integrated Optical Micro-Comb Source

We demonstrate a photonic radio frequency (RF) transversal filter based on an integrated optical micro-comb source featuring a record low free spectral range of 49 GHz yielding 80 micro-comb lines across the C-band. This record-high number of taps, or wavelengths for the transversal filter results in significantly increased performance including a QRF factor more than four times higher than previous results. Further, by employing both positive and negative taps, an improved out-of-band rejection of up to 48.9 dB is demonstrated using Gaussian apodization, together with a tunable centre frequency covering the RF spectra range, with a widely tunable 3-dB bandwidth and versatile dynamically adjustable filter shapes. Our experimental results match well with theory, showing that our transversal filter is a competitive solution to implement advanced adaptive RF filters with broad operational bandwidths, high frequency selectivity, high reconfigurability, and potentially reduced cost and footprint. This approach is promising for applications in modern radar and communications systems.

Validity and reliability of a 10-second foot-tap test in older adults

The purposes of this study were to: (1) compare differences in foot-tap speed between younger and older adults; (2) examine the relationship between foot-tap time and foot-activated reaction time (RT); and (3) assess test-retest reliability of the foot-tap test. Number of Subjects: 115 adults (F=70, M4=5) were recruited from local schools and churches; the sample included 72 young adults (18-64 yo) and 43 older adults (65-92 yo). Subjects with known cognitive, visual, or lower extremity motor deficits were excluded. Methods: After signing an informed consent, subjects were seated at a table where they performed a computerized reaction time test by depressing a foot pedal when a stoplight changed colour. SRTs for 5 trials were averaged for each foot. Subjects then performed the foot-tap test using an electronic tapping device (Western Psychological Services, Los Angeles, CA) which recorded the number of foot taps performed during a 10-sec interval. The subjects’ dominant foot was tested first, followed by a test of the non-dominant foot, and a repeat test of the dominant foot (to assess reliability). A 1-min rest was provided between tests. An independent t-test compared the mean number of foot-taps (on each foot) between age groups, and a paired t-test compared the number of foot-taps between subjects’ dominant and non-dominant feet. A Pearson correlation coefficient was used to analyze the relationship between SRT and number of foot-taps, and an intraclass correlation coefficient (ICC3,1) and Limits of Agreement (LOA) graph were used to assess test-retest reliability. All data were analyzed at the .05 alpha level using SPSS 23 statistical software. Results: The mean number of foot taps differed significantly (p≤.001) between age groups with younger subjects averaging 41.45 (±10.91) taps with the dominant foot and 40.65 (±11.44) taps with the non-dominant foot. Older subjects averaged 28.29 (±10.21) taps with the dominant foot and 26.81 (±11.20) with the non-dominant foot. A mean difference of ≈ 3 taps was found between the dominant and non-dominant feet across all subjects (t=4.616, p≤.001). A moderate, inverse correlation (r=-.451,p=.001) was found between SRT and number of foot taps on the dominant foot. A significant correlation was found between the 2 foot-tap tests performed with the dominant foot (ICC=.793, p≤.001). Conclusions: Younger adults averaged 13 to 14 more foot-taps during the 10-sec test than older adults. Additionally, all subjects demonstrated slightly more foot taps using their dominant foot. Faster reaction times were moderately associated with a higher number of foot taps, and test-retest reliability of the foot-tap test was acceptable. Clinical Relevance: This study demonstrates the moderate effect that normal aging has on foot-tap speed and provides normal values that clinicians may use as a reference when testing individuals with various neurological pathologies. However, the moderate correlation found between reaction time and foot taps suggests that these tests do not necessarily measure the same psychomotor attribute.

A Real-time Drone Surveillance System Using Pixel-level Short-time Fourier Transform

In this study we propose a novel method for drone surveillance that can simultaneously analyze time-frequency responses in all pixels of a high-frame-rate video. The propellers of flying drones rotate at hundreds of Hz and their principal vibration frequency components are much higher than those of their background objects. To separate the pixels around a drone's propellers from its background, we utilize these time-series features for vibration source localization with pixel-level short-time Fourier transform (STFT). We verify the relationship between the number of taps in the STFT computation and the performance of our algorithm, including the execution time and the localization accuracy, by conducting experiments under various conditions, such as degraded appearance, weather, and defocused blur. The robustness of the proposed algorithm is also verified by localizing a flying multi-copter in real-time in an outdoor scenario.

Frequency-Domain Characterization and Performance Bounds of ALMS Loop for RF Self-Interference Cancellation

Analog least mean square (ALMS) loop is a promising method to cancel self-interference (SI) in in-band full-duplex (IBFD) systems. In this paper, the steady state analyses of the residual SI powers in both analog and digital domains are firstly derived. The eigenvalue decomposition is then utilized to investigate the frequency domain characteristics of the ALMS loop. Our frequency domain analyses prove that the ALMS loop has an effect of amplifying the frequency components of the residual SI at the edges of the signal spectrum in the analog domain. However, the matched filter in the receiver chain will reduce this effect, resulting in a significant improvement of the interference suppression ratio (ISR). It means that the SI will be significantly suppressed in the digital domain before information data detection. This paper also derives the lower bounds of ISRs given by the ALMS loop in both analog and digital domains. These lower bounds are joint effects of the loop gain, tap delay, number of taps, and transmitted signal properties. The discovered relationship among these parameters allows the flexibility in choosing appropriate parameters when designing the IBFD systems under given constraints.

Active Coefficient Detection Maximum Correntropy Criterion Algorithm for Sparse Channel Estimation Under Non-Gaussian Environments

In this paper, a kind of active coefficient detection (ACD)-based maximum correntropy criterion (MCC) algorithm is proposed to estimate a sparse multi-path channel under the non-Gaussian environments. The proposed ACD-based MCC algorithms are realized by developing an active coefficient detection mechanism, which can distinguish the active taps within the sparse channels and find out the position and the number of active taps. Therefore, only the active taps coefficient is updated while the trivial channel coefficients are set to be zeros. Various computer simulation experiments are carried out to investigate the performance of the proposed ACD-based MCC algorithms under different impulsive noises. The achieved simulation results prove that the proposed ACD-based MCC algorithms are effective and outperform the previous adaptive filtering algorithms for the sparse channel estimation with regard to both the convergence and the estimation error.

Channel shortening equaliser through energy concentration for TH-UWB systems

Channel shortening equaliser (CSE) plays an important role in ultra wide band (UWB). This paper presents a method for updating the coefficients of CSE based on the adaptation of energy optimisation method using singular value decomposition (SVD) algorithm in UWB channel with time hopping (TH) and pulse position modulation (PPM). This is to suppress inter-symbol interference (ISI) and to simultaneously simplify the rake receiver architecture by significantly reducing the number of channel taps. This CSE can be concentrated the most amount of channel energy within just first taps and suppressed the most of this out the desired window. The presence of the proposed CSE before rake receiver enables the rake receiver implementation with less number of correlators. Computer simulation results are provided to compare the performance of the proposed method with a MSSNR CSE, lower bound, partial-rake, and selective-rake in terms of channel shortening and bit error rate (BER).

Primitive Polynomials for Iterative Recursive Soft Sequential Acquisition of Concatenated Sequences

An iterative initial sequence acquisition technique is proposed for the pseudo-noise signal derived from a pair of m -sequences used for generating the concatenated sequence, which relies on the soft-in-soft-out detection to improve the acquisition performance. This recursive soft sequential estimation technique has a linearly increasing complexity with the number of chips in the concatenated sequence. Receiving as few as S consecutive chips of a (2 S -1)-chip sequence is sufficient for the local concatenated-sequence generator of the receiver to synchronize. Hence, this initial synchronization technique is eminently suitable for long m -sequences and concatenated sequences. Another key result is the comparison of m -sequences and concatenated sequences regarding the acquisition time. It is also observed that low-order primitive polynomials (PPs) achieve better performances than higher-order polynomials for both the m -sequences and concatenated sequences. When considering PPs having a higher number of taps, the exploitation of concatenated sequences is capable of achieving in excess of 3-dB signal-to-noise ratio gains over m -sequences.

Improving Hand Washing Practices Using Age Appropriate Hand Washing Platforms in Schools and Communities

Hand washing is the practice which can save us from a vast spectrum of communicable diseases. The primary schools toilets and community toilets usually have wash basins or platforms built at a particular height. It has been observed that due to the height of these wash basins; it becomes unapproachable for small children. Also, limited numbers of taps discourage children from practising hand washing. Keeping these factors in view and to promote the practice of hand washing among school children, Save the children has come up with a unique design of three stage hand washing platforms. The design of the platform is child friendly and allows children of every age group to wash their hands comfortably irrespective of their height.

Area- and Power-Efficient Nearly-Linear Phase Response IIR Filter by Iterative Convex Optimization

Low complexity infinite impulse response (IIR) filter design with nearly-linear phase response has attracted considerable attention in recent years due to the substantially high area and power consumption of linear phase finite impulse response (FIR) filter. Compared with the FIR filter, designing an IIR filter with the minimized group delay deviation and low power cost is a challenging topic. In this paper, the non-convex group delay deviation minimization problem for IIR filter design is reformulated into an iterative optimization problem to achieve lower group delay deviation. The hardware complexity of the solution is iteratively reduced by approximating the IIR filter coefficients to maximize the number of eliminable common subexpressions. The headroom for the coefficient adjustment is governed by the gradient of group delay deviation between iterations. Using our proposed design algorithm, a high-order lowpass filter with a minimum stopband attenuation of 60dB can be implemented by a 13-tap IIR filter with a group delay deviation of 0.002 only, as opposed to two linear-phase FIR filters designed by two recent and competitive FIR filter design algorithms with tap number of 51 and 57, respectively. Logic synthesis shows that the proposed IIR design saves 39.4% of the area and 41.8% of power consumption over the FIR solutions. Comparing with the latest nearly-linear phase IIR filter design algorithms, the group delay deviation of the solutions generated by our proposed algorithm are on average 25.5% lower, along with an average area and power savings of 20.5% and 18.4%, respectively, from the logic synthesis results.

Translation processes for wind pressures on low-rise buildings

Wind pressure time series on low-rise buildings are characterized by translation processes calibrated to the wind tunnel data from facilities at University of Florida. Translation processes are nonlinear transformations of Gaussian processes which match exactly and approximately the target marginal distributions and covariance functions, respectively. Since the wind pressure data under consideration cannot be well fitted by standard distributions, we use mixtures of distributions with different properties in the central and tail regions. It is shown that the translation processes with the mixtures of distributions are robust and efficient models for wind pressure time series. Moreover, the models can be used as simulation tools to generate synthetic wind pressure data at a large number of pressure taps, whose sample properties are consistent with those of the experimental records.

Joint Hartley-domain and time-domain equalizer for a 200-G (4×56-Gbit/s) optical PAM-4 system using 10G-class optics.

In this paper, we experimentally demonstrate a 200-G (4×56-Gbit/s) optical 4-level pulse-amplitude modulation (PAM-4) system using 10G-class optics over 10-km standard single-mode fiber and propose a joint Hartley-domain equalizer (HDE) and time-domain equalizer (TDE) algorithm for efficiently compensating the serious high-frequency distortions caused by the bandwidth-limited devices. To the best of our knowledge, the first HDE based on Hartley transform is designed for an optical PAM-4 system. Owing to the real-valued and self-inverse properties of the Hartley transform, the HDE has advantages in processing the real-valued PAM-4 signal. The experimental results show that the joint HDE and TDE algorithm has a better performance than only the HDE or only the TDE. Meanwhile, for obtaining a desired bit error rate, the computational complexity of the joint HDE and TDE algorithm is approximately 6% that of only the TDE with larger tap number. In conclusion, the joint HDE and TDE algorithm shows great potential for high-speed and cost-sensitive optical PAM-4 systems.

Influences of Synchronized Metronome Training on Soccer Players' Timing Ability, Performance Accuracy, and Lower-Limb Kinematics.

Planning and performance of all complex movement requires timing, integration, and coordination between sensory-perception and motor production to be successful. Despite this, there is limited research into “if” and “how” timing training may influence movement performance in athletes. The aim of the present study was to investigate the effect of synchronized metronome training (SMT) on sensorimotor timing ability, and in view of that, if improved timing may be transferred to lower-limb movement planning, precision performance, and kinematics. The sample consisted of 24 female elite- and semi-elite soccer players, randomly assigned to receive SMT and a control group. The SMT group received 12 sessions of Interactive Metronome® (IM) training over 4 weeks. At pre- and post-test, timing-precision was assessed through hand and feet movement synchronization with rhythmic sound; and leg-movements performance accuracy, duration, and kinematics were recorded during embodied high cognitive-load stepping task (6 trials×20 s) by use of a optoelectronic motion capture system. Pre- to post-test comparisons showed significant timing improvements as an effect of the IM training. Significant pre- to post-test improvements on the stepping task performance were seen in an increasing number of accurate foot taps during the stepping task sequence and by shorter duration for the SMT-group only. No evident pre- to post-test effects of SMT on the kinematic parameters investigated were found. These findings signify that the guided attention and working-memory functioning may be positively affected by SMT training; thereby, resulting in better motor planning, performance, and movement precision. Still, independent of group and test-occasion, significant correlations were found between the participants’ outcome performance differences and the kinematic parameters. It was found that a decreasing 3D movement distance and less segmented movements correlating negatively, and increasing velocity (speed) positively, with accuracy and performance duration, respectively. These findings are likely associated with inter-individual variations in the nature of higher-order cognitive processing capacity due to the highly cognitive demanding stepping task.

Extending Distributed-Based Transversal Filter Method to Spectral Amplitude Encoded CDMA

In this paper, the analog code modulation characteristics of distributed-based transversal filters (DTFs) suitable for use in spectrally encoded CDMA systems are presented. The DTF is verified as an appropriate method to use in high-speed CDMA systems as opposed to previously proposed methods, which are intended for Direct Sequence (DS) CDMA systems. The large degree of freedom of DTF design permits controlling the filter pulse response to generate well specified temporal phase-coded signals. A decoder structure that performs bipolar detection of user subbands giving rise to a Spectral-Amplitude Encoded CDMA system is considered. Practical implementations require truncating the spreading signals by a time window of duration equal to the span time of the tapped delay line. Filter functions are chosen to demodulate the matched channel and achieve improved user interference rejection avoiding the need for transversal filters featuring a large number of taps. As a proof-of-concept of the electronic SAE scheme, practical circuit designs are developed at low speeds (3-dB point at 1 GHz) demonstrating the viability of the proposal.

A highly scalable parallel spike-based digital neuromorphic architecture for high-order fir filters using LMS adaptive algorithm

This brief presents a highly scalable parallel neuromorphic architecture to efficiently compute high-order adaptive FIR filters using a least mean square (LMS) algorithm. This has been achieved by eliminating critical paths because they critically affect the scalability of advanced parallel architectures. Here, the scalability is defined in terms of number of taps and bit-length. On the computation of high-order adaptive FIR filters, the multiplication is the most demanding operation. Therefore, we have made intensive efforts to create a compact new neural multiplier by improving the design and hardware implementation of an existing neural multiplier. The resulting multiplier requires 50 % fewer synapses, 40 % fewer neurons, 30 % fewer area resources and 26 % fewer clock cycles compared with the existing neural multiplier, respectively. The efficient implementation of the proposed multiplier has allowed us to eliminate critical paths significantly and thus the bit-length can be easily increased to guarantee the convergence performance when high-order adaptive filters are processed. To demonstrate its effectiveness, the proposed multiplier was included in the neuromorphic architecture to support high-order adaptive FIR filters. In addition, we employ the time multiplexing technique to maximize the utilization of the proposed neural multiplier by performing filter processing and the adaptive process because multiplication is involved in both. We mainly use this strategy to eliminate critical paths and reduce the area consumption by implementing a large number of taps. The proposed neuromorphic architecture was implemented on the Kintex-7 Field Programmable Gate Array (FPGA) development kit to validate its performance. Our results demonstrate that the neuromorphic architecture is capable of processing higher adaptive FIR filters compared with previously reported solutions. This potentially allow its practical use in many advanced digital signal processing applications such as acoustic echo cancellers, active noise control, channel equalization and system identification.