Reduction in sidelobe and SNR improves by using Digital Pulse Compression Technique

Digital pulse compression is the technique to convert short pulse to long pulse because energy content of long pulse with low peak power would be the same with short pulse having high peak power. In this paper pulse compression is performed by Matched Filter in signal processing environment. At some finite interval of time the high peak amplitude of signal with narrow bandwidth gives the energy of the transmitted pulse from the radar. Matched filter gives the signal to noise ratio at the receiver output. Sidelobe reduces to -63 db. Signal to noise ratio (SNR) improves to 12dB. Non linear frequency modulated (NLFM) pulse compression is used. They have been claimed to provide a high range resolution, improved SNR, low cost, good interference mitigation and spectrum weighting function. High range side lobe can cause poor performance in both target and weather detection. The results have been validated using experimental data.