A Kind of Algorithm Similar to Amplitude Demodulation for Sonar Array Direction of Arrival

摘要：

Presented is a kind of algorithm similar to amplitude demodulation for sonar array DOA (Direction of Arrival) for the purpose of simple algorithm,low processing requirement and low cost. According to the fixity of delay between units and the character of trigonometric function,the formula of DOA is got by deduction in the algorithm. Simulation results show that when the interval between units is quarter of wavelength,the precision is less than 0.3° when SNR is 10dB and DOA is 5°~85°,the precision is less than 0.5° when SNR is 0dB and DOA is 10°~85° and the precision is not more than 1° when SNR is-10dB and DOA is 15°~80°. Simulation results also show that the precision can be less than 0.3° by changing the proportion of units interval and wavelength,when SNR is between 0dB ~10dB and DOA is 4°~86°.

关键词： DOA uniform linear sonar array Array signal processing.

作者: Wei Guo Zhongming Pan Yueke Wang

作者单位: College of Mechatronics Engineering and Automation,National Univ.of Defense Technology Changsha 410073,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3243-3246

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）