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| Resolving Multiple Targets with Micro-motions Based on Time-frequency feature with Low-resolution Radar |
| Huang Xiao-hong He Xia Xin Yu-lin Chen Zeng-ping |
| ATR Key Laboratory, University of Defense Technology, Changsha 410073, China |
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Abstract Resolving multiple targets in one beam is important to low-resolution radar. A method to resolving multiple targets is proposed using time-frequency transform based on the defference of targets micro-doppler. Adaptive chirplet transform is used to remove across item of signals, the main frequency of each target is got using adaptive chirplet transform, since the main frequency is linear, hough transform is used to detect the numbers of lines, then the numbers of multiple targets in one beam is got. Simulation experiments show that this method can effectively estimate the numbers of multiple targets.
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Received: 09 October 2009
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Corresponding Authors:
Huang Xiao-hong
E-mail: hxh0872@tom.com
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2010, Vol. 32 
