Characterization Of Impulsive Noise Research Articles

Impulsive Noise Characterization in Narrowband Power Line Communication

Currently, narrowband Power line communication (PLC) is considered an attractive communication system in smart grid environments for applications such as advanced metering infrastructure (AMI). In this paper, we will present a comprehensive comparison and analysis in time and frequency domain of noise measured in China and Italy. In addition, impulsive noise in these two countries are mainly analyzed and modeled using two probability based models, Middleton Class A (MCA) model and α stable distribution model. The results prove that noise measured in China is rich in impulsive noise, and can be modeled well by α stable distribution model, while noise measured in Italy has less impulsive noise, and can be better modeled by the MCA model.

Impulsive Noise Characterization of In-Vehicle Power Line

Impulsive noise can have a great influence on the performance of in-vehicle power line communication systems. Intensive noise measurements in the time domain were thus carried out on five different vehicles. Preliminary trials were first made on a stationary vehicle and the motor idling, but the characteristics of the measured low-amplitude pulses greatly vary from one car to another. We thus emphasize the characteristics of high-amplitude pulses, greater than 70 mV, observed when the vehicles were moving in traffic, during a 20-min trip. Noise is statistically characterized in terms of duration, frequency content, peak amplitude, and time interval between successive pulses. Stochastic models based on mathematical distribution functions and fitting the experimental distribution of the various pulse characteristics are proposed. It has been found that interarrival time, i.e., the time interval between two successive pulses, is rather short and would be thus the most critical parameter when optimizing the power line communication physical layer.

Classification and characterization of impulsive noise on indoor power line used for data communications

The performance of a link using the indoor power line network as a medium for communication strongly depends on the noise characteristics. Besides the background noise and the narrow band noise mainly due to broadcast transmitters, impulsive noise adversely affects the quality of service. This paper focuses on impulsive noise measurements, their statistical properties being the basis of a noise model for optimizing a transmission scheme.

How to use noise standards and what new standards are needed

The ISO 3740 series of basic standards for the determination of the sound power levels of stationary noise sources was issued by the International Organization for Standardization during the 1970s. American National Standards based on the ISO 3740 series have now been completed. These measurement standards have been adopted by several industries, including the manufacturers of computers and business equipment whose test code is continuously updated to reflect improvements in instrumentation and measurement methodology. Two important problems currently being addressed are the quantitative assessment of prominent discrete tones and the characterization of impulsive noise. The new standards being developed by the computer and business equipment industry are discussed with reference to current national and international requirements.

The characterization of impulsive noise and considerations for a noise-measuring receiver

After reviewing the ways in which impulsive noise is generated and methods by which it may be characterized, parameters suitable for an assessment of system performance are selected. Design considerations are given for equipment suitable for the measurement of these parameters and the effect of limitations in the equipment on the measured parameters is described. Methods of overcoming these limitations are discussed.