Parameter Estimation of LFM Signal in Low Signal-to-Noise Ratio Using Cross-Correlation Function

The pulse with intra-pulse modulation plays an important role in the design of radar systems. first class signals type is linear frequency technique. used to resolve range resolution problems. This paper provides a new algorithm for detecting at low signal-to-noise ratio. core idea proposed method firstly analyse via Fast Fourier Transform; and then accumulate all energy achieve signal detection using cross-correlation methods. showed better results comparison current algorithms, which are estimate parameters