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| The MODE-TOEP Algorithm Based on Uniform Circular Array |
| Gao Shu-yan①; Chen Hui①; Wang Yong-liang①; Zhang Yang② |
| ①The Key Research Lab of Air Force Radar Academy, Wuhan 430019, China;②Police Army Beijing Command Academy, Beijing 100012, China |
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Abstract The MODE-TOEP algorithm is proposed to estimate DOA of coherent signals on a Uniform Circular Array (UCA). Firstly, the mode excitation method is used to transform the UCA in element space into a virtual ULA (VULA) in mode space. Then a Toeplitz matrix can be reconstructed to estimate DOA of coherent signals successfully. MODE-TOEP algorithm has less computational burden due to non-spatial smoothing. Simulation results show that MODE-TOEP algorithm is effective and has a better performance compared with conventional MODE-SS algorithm.
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Received: 01 June 2006
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2007, Vol. 29 
