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针对红外传感器阵列观测数据的特点,提出了利用空间信息冗余性提高目标定位精度的方法。该方法利用观测视线在水平面和垂直面上形成的交叉点确定目标位置,通过对目标位置的融合提高定位精度。推导了目标位置、定位误差及定位精度的解析式,并从理论上证明所给的加权因子可使目标定位误差在统计意义上达到最小。仿真实验验证了该方法的正确性。
Aiming at the characteristics of infrared sensor array observation data, a method of using spatial information redundancy to improve the target location accuracy is proposed. In this method, the target position is determined by the intersection between the horizontal plane and the vertical plane by observing the line of sight, and the positioning accuracy is improved by fusing the target position. The analytic formulas of the target position, the positioning error and the positioning accuracy are derived, and the weighting factors given are theoretically proved to minimize the target positioning error in the statistical sense. Simulation experiments verify the correctness of the method.