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Developing Sidelobe Reduction Techniques using P4 Code for Pulse Compression Radar Applications

CH. Ramya Sree*, B. Kiranmai**, G. H. Sindhuja***, A. V. Sai Kumar****

*_***** Department of Electronics and Communication Engineering, Lendi Institute of Engineering and Technology, Vizianagaram, Andhra Pradesh, India.

Periodicity:January - March'2019
DOI : https://doi.org/10.26634/jdp.7.1.16348

Abstract

Pulse compression is a signal processing technique mainly used to increase the range resolution and detection capabilities of the Radar. This paper presents a novel technique for the 'reduction of the side-lobes in the Pulse Compression (PC)' for the Radar systems. This Pulse Compression increases the range resolution and signal to noise ratio. In this paper, the polyphase codes have been considered because it has low side lobes and are better Doppler tolerant and better tolerant to pre-compression band limiting. The peak sidelobe ratio and signal noise reduction loss are computed using P4 polyphase codes. This result is compared with various weighting techniques applied on the output of Woo filter in order to suppress the sidelobes. This proposed PC technique is implemented by shifting the input P4 polyphase codes and multiplied with reference signal. This technique produces certain improvement in Peak Sidelobe Ratio and Signal Noise Reduction Loss (SNR Loss).

Keywords

Peak Sidelobe Ratio, Pulse Compression, SNR Loss, Matched Filter.

How to Cite this Article?

Sree, R., Kiranmani, B., Sindhuja, G. H., & Kumar, A. V. S. (2019). *-**** Department of Electronics and Communication Engineering, Lendi Institute of Engineering and Technology (Autonomous), Vizianagaram, Andhra Pradesh, India. i-manager’s Journal on Digital Signal Processing, 7(1), 28-32. https://doi.org/10.26634/jdp.7.1.16348

References

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