DocumentCode :
2983260
Title :
ISAR imaging of ship target based on LMSF signal
Author :
Zhang, Long ; Si, Dong Sen ; He, Wei ; Xing, Meng Dao
Author_Institution :
State Key Lab. for Radar Signal Process., Xidian Univ., Xi´´an, China
fYear :
2009
fDate :
26-30 Oct. 2009
Firstpage :
626
Lastpage :
629
Abstract :
To obtain high resolution ISAR image of ship target in motion with narrow-bandwidth T/R devices and a low-speed A/D sampler, an effective imaging method based on linearly modulated stepped frequency (LMSF) is proposed in this paper. Firstly, the signal model is developed and analyzed. Secondly, a band coherent processing method is proposed to eliminated the error induced by the translational motion and the high range profile is obtained. Finally, the high resolution of cross range is achieved by using the DechirpClean technique. The theory analysis and the result of real data processing demonstrate the performance of the proposed method.
Keywords :
analogue-digital conversion; image resolution; radar tracking; ships; synthetic aperture radar; target tracking; DechirpClean technique; ISAR imaging; LMSF signal; band coherent processing; data processing; image resolution; linearly modulated stepped frequency; low-speed A/D sampler; narrow-bandwidth T/R devices; ship target; translational motion; Bandwidth; Chirp modulation; Frequency modulation; Image resolution; Marine vehicles; Radar scattering; Signal analysis; Signal processing; Signal resolution; Space vector pulse width modulation; HRRP; SFW; coherent processing; sub-pulse;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
Type :
conf
DOI :
10.1109/APSAR.2009.5374276
Filename :
5374276
Link To Document :
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