基于相位差原理的无线电源定位方法的研究与仿真

Research and Emulation Method of Radio Source Location Based on Phase Difference Principle

为了确定兵器试验场上弹落点的位置,提出了基于多接收天线的接收信号相位差原理,确定近距离无线电发射源位置的方法,建立了一种5个接收天线的菱形测距模型,推导了距离与相位差的关系,通过测量菱形中心与任一顶点间的相位差,从而得出发射源的距离;为了简化接收天线的布置,优化了长、短对角线,得出了简易的方阵测距模型;本文还对此模型进行了计算机模拟仿真,证明了该方法的可行性。

In order to detect falling point of testing bomb on the weapon testing ground, based on the principle of phase difference among receiving signals of multi-receivlng antennas, a method of locating near distance radio source position is presented, a rhombic measuring model of 5 receiving antennas is founded, the relation between distance and phase difference is deduced, through measuring the phase difference between rhombic center and one culmination, radio source distance is gained. In order to simplify the layout of receiving antennas, long and short diagonals are optimized, a simple quadrate model is educed. This model is simulated and emulated, it shows that this method has better feasibility.