Reduction of side lobes of Radar signals for Complementary Code using LMS
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 10
Abstract
Range resolution is the ability of the radar receiver to discriminate nearby targets whereas the Doppler resolution is the ability to determine the relative speed of the target along the line of sight from the radar to the target. The performance of range and Doppler resolutions of radar would be optimal, if the coded waveform has impulsive ACF. Complementary codes waveforms support better resolutions compared to other pulses like LFM. A desirable property of the compressed pulse is that it should have low side lobes in order to prevent a weaker target from being masked in the side lobes of a nearby stronger target. The lower the side lobes relative to the main lobe peak, the better the main peak can be distinguished and hence the better is the corresponding code. In this we have proposed the LMS algorithm to design the complementary code for better performance measures like PSLR and ISLR and compared with matched filter values. The performance measures influence in discriminating the target from the noise environment.
Authors and Affiliations
D. Tirumala Rao, P. Rajesh Kumar, K. Raja Rajeswari
Keywords
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