Design and analysis of LFM/Barker RF stealth signal waveform

摘要

Single modulated signal is apt to be captured by passive detector in radar system. In this study, we put forward the structure of LFM/Barker which is a hybrid modulated signal based on linear frequency modulation (LFM)signal and Barker code, discuss ambiguity function and intercept factor and power spectrum density (PSD). Simulation results show that the designed signal has a lower peak-to-sidelobe ratio and a smaller main lobe width. Besides that, the designed signal also has little intercept factor. Many features show that LFM/Barker hybrid signal has better radio frequency(RF) stealth performance.