Design and Analysis of LPI Radar Waveforms

Abstract

The main goal of this paper is to design LPI radar waveforms and compare their performance. Reduced side lobes, low average transmitted power, low radar noise and temperature, and, most crucially, wide bandwidths are all properties of the LPI radar waveform. The long pulse bandwidth can be expanded by modulating the signal using frequency or phase. Pulse compression filter is applied at the receiver to compress the signal. Pulse compression techniques such as linear frequency modulation and polyphase modulation are used in this paper. The peak side lobe ratio and integrated side lobe ratio are calculated using the autocorrelation and ambiguity functions of these waveforms. In this study, the performance of LPI waveforms is evaluated using the peak side lobe ratio of the ambiguity function and the integrated side lobe ratio of the autocorrelation function.