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Analysis of Clock Jitter Effects on LFM-Signal Pulse Compression Based on Matched Filter

Clock jitter is one of the main elements affecting the SNR of acquired signal. Based on the noise model of normal distribution, this paper analyzes the influence of clock jitter on the SNR of ADC. Then, the effects of clock jitter on the mainlobe width and the PSLR of LFM-signal pulse compression are analyzed. The simulation results show that as the clock jitter increases, the mainlobe broadens and the noise floor increases. When the clock jitter is less than 0.2/B, the main lobe broadening and the PSLR deterioration are negligible. The results provide a reference for system design and device selection.