Abstract：In the field of radar and communication, Linear Frequency Modulation
(LFM) signal is a very important non-stationary signal, parameter
estimation of LFM signal is always the research focus. A new LFM
signal parameter estimation algorithm based on fast Radon-Wigner
Transform (RWT) and fractional Fourier transform (FRFT) is proposed
here. It utilizes fast RWT to calculate modulation frequency of LFM
signal, and then according to modulation frequency we use FRFT only
once to calculate initial frequency. We made a comparison between
new method and other two LFM signal parameter estimation algorithms,
and got simulation results under different SNRs. Simulation results
show that parameter estimation accuracy and anti-noise performance
are improved by using new algorithm, which offers potential for
engineering application.
Yibing Li;Yanhuan Wang;Dandan Liu;Juan Ge. Parameter Estimation of LFM Signal Based on Fast Radon-wigner Transform and Fractional Fourier Transform[J]. , 2014, 11(11): 3921-3928.
Yibing Li;Yanhuan Wang;Dandan Liu;Juan Ge. Parameter Estimation of LFM Signal Based on Fast Radon-wigner Transform and Fractional Fourier Transform. , 2014, 11(11): 3921-3928.
2014, Vol. 11 
