火炮快速定向中天线差方向图拟合

火炮快速定向中天线差方向图拟合

内容简介：为了实现利用卫星进行真北方向的精确测定,文中利用卡尔曼滤波对天线的＂差方向图＂进行噪声抑制,进而拟合出了精确的天线＂差方向图＂,最终利用拟合出的曲线求出天线＂差方向图＂的零深点。仿真结果表明定向的角度误差基本满足火炮类武器的指向精度要求。

Abstract：Using the satellite signal to measure the real north precisely, the Kalman filter is used for suppressing noise in the difference pattern signal of the antennas. Then the precise difference pattern signal of the antennas is fitted. Finally using the curve fitting of the difference pattern, the null depth of signal of the antennas is calculated. The simulation result shows that the directional angle errors approximately meet the demand for the demand for the accuracy of artillery weapons.

作者：张小兵, 商锋,

关键词：卡尔曼滤波, 天线差方向图, 拟合, 测向误差,