Analysing Chebyshev Filter For Displaying Radar Target Track

摘要

Now-a-days, noises are common in communication channels and the recovery of the transmitted signals from the communication path without any noise are considered as one of the difficult tasks. This is accomplished by the denoising techniques that remove noises from a digital signal. The noise in the radar data results in the flutter of the flight target in display screen, which may disturb observer. This paper involves the use of Chebyshev filter for removing the noise from radar signal so that we can receive the clear picture of Radar Signal which is to be displayed. Chebyshev filters are analog or digital filters having steeper roll off and more passband ripple (type 1) and stopband ripple (type 2) than Butterworth filters. Chebyshev filters have the property that they minimize the error between the idealized filter characteristics and the actual over the range of the filter, but with ripples in the passband. By passing the radar signal through the Chebyshev filter noise in radar signal is magnified. The results of MATLAB illustration show that the method has a reliable denoising performance