NDLI: Range ambiguity resolving of HPRF radar based on hybrid filter

Content Provider	Springer Nature Link
Author	Wang, Na Wang, GuoHong Zeng, JiaYou He, You
Copyright Year	2011
Abstract	In this paper, a novel method of range ambiguity resolving based on hybrid filter is proposed for high-pulse repetition frequency (HPRF) radars. By considering the discrete-valued pulse interval number (PIN) which is described as the radial range of the target divided by the maximum unambiguous range for a certain HPRF and its incremental variable as target states, the problem of range ambiguity resolving is converted to the hybrid state estimation problem. In the initial time steps, since the range measurement is ambiguous, the hybrid state initialization is achieved by utilizing multiple HPRFs based on Euclidean distance. Then, to avoid the choice of the thresholds, the hybrid model based on six-dimension state vector is made equivalent to several hybrid models based on five-dimension state vector according to the values that PIN incremental variable may take. The hybrid estimation is achieved by comparing 2-norm of the innovations obtained from several hybrid filters. Simulation results demonstrate that the proposed method can converge more rapidly than the existing multiple hypothesis method when only one HPRF has target measurement and overcome the mistake that multiple hypothesis method makes when PIN varies.
Starting Page	1534
Ending Page	1546
Page Count	13
File Format	PDF
ISSN	1674733X
Journal	Science in China Series : Information Sciences
Volume Number	54
Issue Number	7
e-ISSN	18691919
Language	English
Publisher	SP Science China Press
Publisher Date	2011-04-12
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	HPRF range ambiguity pulse interval number Euclidean distance hybrid filter innovation Information Systems and Communication Service
Content Type	Text
Resource Type	Article
Subject	Computer Science

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