关键词: 位置信息场, DOA参数, 多目标, 精度分析

Abstract: When the traditional direction finding positioning theory positioning on multiple targets, how to classify the measured DOA parameters by the target is a difficult problem. The position information field location method has the advantage of getting the number of targets and finding the multi-target’s position at the same time without classifying the measurement parameters according to target. Precision analysis for position information field location based on DOA is presented and positioning error covariance matrix is given. Based on it, the influence of the measuring angular accuracy and baseline length on the location accuracy is analyzed by computer experiments and it proves the correctness of the theory analysis and the effective of the position information field location method to multiple targets.

Key words: position information field, DOA parameters, multi-target, precision analysis