Mh. Han et Nc. Yuan, BISPECTRUM RECONSTRUCTION METHOD OF UWB ECHOES, International journal of infrared and millimeter waves, 19(8), 1998, pp. 1131-1140
Estimation of transient signal in additive noise is very important in
radar object detection and recognition. This paper presents a new meth
od for transient signal reconstruction based on bispectrum estimation
techniques. The third-order cumulants of the received noisy ultra-wide
band echoes are acquired first and an ARMA model is then fitted. The
bispectrum of the output signal of the ARMA model will be used to reco
nstruct the transient signal. Simulation results show that the effect
is very good even in lower signal-to-noise (SNR) situation.