DocumentCode :
3410770
Title :
Time delay and doppler shift estimation accuracy analyses of moving targets in non-cooperative bistatic pulse radar
Author :
Xianjun, Ge ; Jie, Song ; You, He
Author_Institution :
Res. Inst. of Inf. Fusion, Naval Aeronaut. & Astronaut. Univ., Yantai, China
fYear :
2010
fDate :
24-28 Oct. 2010
Firstpage :
2291
Lastpage :
2294
Abstract :
According to the characteristics of non-cooperative bistatic pulse radar systems and the issue that the doppler mismatched loss of the cross-correlation detection of moving targets is serious, two fast methods for joint time delay and doppler shift estimation of moving targets, based on segment correlation-FFT processing and modified partial segment correlation-FFT processing, are proposed, after analyzing the common methods for cross-ambiguity function processing such as direct calculation, FFT, Zoom-FFT method. The processing performance of direct calculation and partial segment correlation-FFT processing of LFM pulse-series is analyzed in theory and by simulation. And the simulation shows that the weak moving target can be detected effectively and the time delay and doppler shift can be fast estimated by the methods presented in this paper.
Keywords :
Doppler shift; correlation methods; fast Fourier transforms; object detection; radar detection; Doppler shift estimation accuracy analysis; LFM pulse-series; cross-ambiguity function processing; cross-correlation detection; doppler mismatched loss; moving target detection; noncooperative bistatic pulse radar; partial segment correlation-FFT processing; time delay; Accuracy; Correlation; Delay effects; Doppler shift; Equations; Estimation; Mathematical model; bistatic radar; doppler shift; moving targets; non-cooperative; time delay;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing (ICSP), 2010 IEEE 10th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5897-4
Type :
conf
DOI :
10.1109/ICOSP.2010.5656265
Filename :
5656265
Link To Document :
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