Title :
MIMO-SAR waveform separation based on inter-pulse phase modulation and range-doppler decouple filtering
Author :
Meng, C.-Z. ; Xu, Jie ; Xia, Xiang-Gen ; Long, Teng ; Mao, E.-K. ; Yang, Jian ; Peng, Y.-N.
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The coupling among multiple coded orthogonal waveforms occupying the same frequency band may seriously affect the distributed terrain imaging of multiple-input and multiple-output synthetic aperture radar (MIMO-SAR). Based on the inter-pulse phase modulation among different transmitting waveforms, a range-Doppler decouple filtering method is presented to separate waveforms effectively. Finally, numerical experiments are provided to demonstrate the effectiveness of the proposed method.
Keywords :
Doppler shift; MIMO radar; filtering theory; phase modulation; pulse modulation; radar imaging; synthetic aperture radar; MIMO-SAR waveform separation; distributed terrain imaging; interpulse phase modulation; multiple coded orthogonal waveforms; multiple-input and multiple-output synthetic aperture radar; range-Doppler decouple filtering method; transmitting waveforms;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.0016
