Abstract
<p>The current article addresses digital implementation of new demodulation schemes for Binary Frequency Shift Keying (BFSK), and has two main objectives: of the description of the performance of the new processing method and its implementation on FPGA technology. Performance is analyzed by means of the total number of demodulated bits free of errors without noise, and by means of the BER parameter. The proposed method exhibits to have better performance than the solutions reported. Additionally, the solution obtained shows lower complexity than reported methods in regard to the total number of adders and multipliers. The implementation is described for FPGA systems, and the System Generator software is used for testing and simulating the results.</p>
Highlights
Digital frequency modulations such as Frequency Shift Keying (FSK) are commonly applied in wireless technologies (Ibrahim, Hafez, & Khalil, 2013) (Peng, Lin, &Chao, 2013), satellite communications(VEŘTÁT & MRÁZ, 2013), power lines communications (PLC) (Ouahada, 2014), mobile communications (Karabulut, Ozdemir, & Ilhan, 2015), spread spectrum systems (Neifar, Trabelsi, Bouzid, & Masmoudi, 2012) and biomedical applications (Wang, Chen, Lin, & Lee, 2014)
Numerical simulations were done in order to compare the proposed receiver with that of the Balanced Quadricorrelator
The Balanced Quadricorrelator exhibits a higher precision than the proposed solution, the proposed receiver can be employed if a sequence of 61 or less all-one or all-zero bits are transmitted
Summary
Digital frequency modulations such as Frequency Shift Keying (FSK) are commonly applied in wireless technologies (Ibrahim, Hafez, & Khalil, 2013)
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