Performance Analysis and Comparison of Correlative Interferometers for Direction Finding

摘要：

The correlative interferometer is widely used for finding the direction of arrival with high accuracy, flexibility and broadband operation range. In this paper, the bias and mean squared error of these direction estimates with loss functions such as least squares, correlation coefficients and cosine function, are derived for the correlative interferometer, respectively. The explicit expressions of the mean squared errors for the three correlative interferometers are the same for small measurement noise, and they all achieve the Cram′er-Rao bound. The analytical results are also shown to be excellent predictors of empirical results obtained from computer simulation of the correlative interferometer for direction finding with above the loss functions. In addition, the cosine function based correlative interferometer has better performance than the least squares and correlation coefficient based ones for large measurement noise.

关键词： Direction finding correlative interferometer direction of arrival (DOA) perturbation analysis least squares

作者: He-Wen Wei Yun-Gang Shi

作者单位: Southwest Electronics and Telecommunication Research Institute Chengdu 610041, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 393-396

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）