一种基于波束重置提高测角精度的方法

Amethod for improving angle measurement accuracy based on beam reset

针对雷达天线转动时波束对回波信号产生调制,导致多脉冲积累雷达比幅测角时测量精度下降的问题,分析了测角精度恶化产生的机理,提出了基于波束重置提高测角精度的方法,并进行了仿真分析和试验验证.仿真和试验结果表明,该方法可行有效;当积累脉冲数较多时,与传统方法相比,本文提出的方法测量精度更高,适用范围更广.

Aiming at the problem that the modulation of the echo signal by beam when radar rotates leads to the decline of accuracy in amplitude comparison angle measurement of multi-pulse accumulation radar,this paper first analyzes the mechanism of the deterioration of angle measurement accuracy,then puts forward a method to improve the angle measurement accuracy base on beam reset,and finally carries out simulation analysis and experimental verification.The simulation and test results show that this method is feasible and effective,and that when the number of accumulated pulses is larger,the proposed method has higher measurement accuracy and wider application range,compared with the traditional method.