NDLI: Doppler compensation for passive coherent location

Content Provider	IEEE Xplore Digital Library
Author	Tang Xiaoming He You Dong Shijia Ni jinlin
Copyright Year	2002
Description	Author affiliation: Naval Aeronaut. Eng. Inst., Yantai, China (Tang Xiaoming; He You)
Abstract	For target movement without velocity information in a passive coherent location system, the unknown Doppler shift between the direct signal and the target echo results in a decrease of the highest peak output value and the occurrence of some false peaks. Several Doppler compensation methods are compared in terms of the Doppler decorrelation loss factor. The Doppler decorrelation loss from the different inherent correlation times of signals and the different overlap times in the cross-correlator is analyzed. Simultaneously, the rationality of two stage processing is explained. In order to reduce the computational burden much more, an FFT pruning algorithm is introduced into segment Doppler compensation. The results of simulations are in close agreement with theory predictions.
Sponsorship	Chinese Inst. Electron. IEEE Signal Process. Soc. IEEE URSI IEEE Beijing Sect. Nat. Natural Sci. Found. China China Committee for URSI IEEE Comput. Soc. Beijing Chapter IEEE SP Soc. Beijing Chapter
Starting Page	1457
Ending Page	1460
File Size	267741
Page Count	4
File Format	PDF
ISBN	0780374886
DOI	10.1109/ICOSP.2002.1180068
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-08-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal to noise ratio Signal processing Frequency Decorrelation Doppler shift Signal analysis Surveillance Helium Aerospace engineering Computational modeling
Content Type	Text
Resource Type	Article

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