舰载雷达探测误差传递与灵敏度分析

Error Transfer and Sensitivity Analysis of Ship-Borne Radar Detecting

在舰艇及编队指控系统中,来自不同平台的传感器探测系统偏差失配是影响态势一致性的关键因素。本文采用理论建模和数字仿真相结合的方法,对舰载雷达探测和处理涉及各环节的偏差进行分析,建立了雷达测量、坐标转换、平台定姿定位和基线转换等各环节偏差影响模型和舰载雷达探测的等效偏差模型。理论分析和计算机仿真结果表明,雷达方位测量、平台艏向和甲板艏向形变引起的偏差均可以直接迭加到方位上,合并为方位偏差;同时,在目标俯仰角小于10°的情况下,基本上可以忽略甲板形变、平台姿态偏差对目标方位测量的影响。

Sensor-track precision is the key factor affecting the correctness of the situation in multi-sensor data fusion. The principle of error transfer and the methods for correcting are in- vestigated by modeling the effects of sensor measurement, coordinate conversion, plat location and baseline coordinate conversion. Theoretical analyses and simulation results show that the error caused by the course and deck distortion can be added to the bearing measurement. Besides, it can even be ignored when the elevation is less than 10°.