Title :
Two dimensional imaging of extended targets by MIMO radar using hopped frequency signal
Author :
Ma, Changzheng ; Yeo, Tat Soon ; Feng, Junjie ; Tan, Hwee Siang
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
Multiple input multiple output (MIMO) radar transmits orthogonal or non-coherent waveforms which greatly improve the array aperture. Works published generally only consider narrow band signal and/or point targets located in one range cell. In this paper, the study of range and azimuth angle imaging of extended targets employing wideband hopped frequency signals is discussed. Hopped frequency signal are sensitive to a targetpsilas speed. A kurtosis based criterion is presented for doing motion compensation. In order to mitigate the high side lobe of the hopped frequency signal, a ldquoCLEANrdquo based signal processing procedure is also presented.
Keywords :
MIMO systems; motion compensation; radar imaging; waveform analysis; 2D imaging; MIMO radar; azimuth angle imaging; kurtosis based criterion; motion compensation; multiple input multiple output radar; noncoherent waveform; orthogonal waveform; range angle imaging; wideband hopped frequency signal; Azimuth; Frequency; MIMO; Narrowband; Radar antennas; Radar cross section; Radar imaging; Receiving antennas; Signal processing; Transmitting antennas; MIMO radar; extended target; hopped frequency signal; motion compensation;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697623