The FPSO-DML Algorithm for 1-DOA Estimation of Wideband Signals

摘要：

The 1-DOA estimation algorithm is used to estimate azimuth of signals. DML (Determined Maximum Likelihood) is a kind of algorithm for parameter estimation of determined narrowband signals, which theoretically has advantages of high precise as well as high suppression to strong noise and coherent signals. However, there are problems of high computation complexity and local convergence. Therefore, the algorithm named FPSO-DML (Fission Particle Swarm Optimization-DML) is put forward in this paper, which could get accurately global optimum root of DML function at a cost of low computation. Then, the wideband signal is decomposed into narrowband signal at different frequency by FFB, which is used to estimate 1-DOA by FPSO-DML algorithm. Simulations prove that the RMSE curve of proposed algorithm approach CRB of DML algorithm, and having strong ability of tolerating coherent wideband signals.

作者: Jing-wen Yang Jin-long Wang Yi-tao Xu Xu Ma Xing-hao Pang

作者单位: Unit 68304 of PLA, Shaanxi China Institute of Communications Engineering, PLA University of Sci.& Te Institute of Communications Engineering, PLA University of Sci.& Tech, Nanjing, China Unit 66061 of PLA, Beijing, China

会议类型: 国际会议

会议名称: 2010年无线通信与信号处理国际会议

会议地点: 上海

会议语种:英文

页码: 1-4

在线出版日期: 2010-10-20（万方平台首次上网日期，不代表论文的发表时间）