Title :
OPCDM-LFM waveforms design for Formation-Flying Satellite radar system
Author :
Zong, Zhulin ; Hu, Jianhao ; Zhu, Lidong
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Commun. Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Formation-Flying Satellite radar system can fundamentally improve radar imaging performance by using a group of specially designed orthogonal waveforms. Based on studying the performance of LFM signal and phase coded signal, we modulate the same LFM signal using different phase coded signals, and generate the orthogonal phase code division multiplex linear frequency modulation (OPCDM-LFM) compound waveforms. The genetic algorithm is introduced to numerically optimize the compound waveforms. The simulation results show that the synthetic performance of the proposed waveforms in range resolution, orthogonal performance, Doppler tolerance and the utilization ratio of bandwidth is very well.
Keywords :
frequency modulation; genetic algorithms; numerical analysis; orthogonal codes; phase coding; radar imaging; radar resolution; Doppler tolerance; LFM signal; OPCDM-LFM waveforms design; compound waveforms; formation-flying satellite radar system; genetic algorithm; orthogonal phase code division multiplex linear frequency modulation; orthogonal waveforms; radar imaging performance; range resolution; synthetic performance; utilization ratio; Compounds; Doppler effect; Genetic algorithms; Optimization; Satellites; Spaceborne radar; Linear Frequency Modulation (LFM); compound signal; formation-flying satellite; phase coded;
Conference_Titel :
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8444-7
DOI :
10.1109/CIE-Radar.2011.6159610
