Title :
A cross-spectral SVD method for chirp time delay estimation
Author :
Yu, Xiaohui ; Shi, Yaowu ; Zhang, Ying
Author_Institution :
Coll. of Commun. Eng., Jilin Univ., Changchun, China
Abstract :
In this paper a new approach for time delay estimation of chirp signals is presented. It is based on an especial pre-transform and a cross-spectral SVD method. Even working in signal-to-noise ratio (SNR) environment as low as -5dB, the technique here can obtain chirp time delay estimation outcomes with high accuracy, high reliability and high resolution. Computer emulations have verified that it is superior to the cross correlation method apparently.
Keywords :
delay estimation; signal processing; singular value decomposition; SNR; chirp signals; chirp time delay estimation; cross correlation method; cross-spectral SVD method; pretransform method; signal-to-noise ratio; Chirp modulation; Correlation; Delay effects; Delay estimation; Emulation; Frequency estimation; Parameter estimation; Signal processing; Signal resolution; Signal to noise ratio;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1567092
