A Research on Ambiguity Function of Symmetrical Triangular Frequency Modulated Pulse Compression Signal
Zhenru Gao · Tance yu kongzhi xuebao · 2009
Ambiguity function is a very important tool for analyzing fuze signal and designing waveform.The ambiguity function of symmetrical triangular frequency modulated pulse compression(STFMPC) signal is derived in detail based on its definition,and the range-velocity autocorrelation function is also derived.The simulation shows that STFMPC signal is sensitive to Doppler frequency-shift,and its ambiguity function has one aiguille at the origin and four symmetrical right-angle set-squares with the aiguille as their common spindle.The set-squares are of a certain thickness.The comparison with-3 dB contour of ambiguity function of saw-tooth frequency modulated pulse compression(SFMPC) signal shows that STFMPC signal has stronger anti-jamming performance and higher resolution than SFMPC.And the STFPC signal can eliminate the range-velocity coupling of moving targets in the multi-target environment.