基于查表法解雷达导引头速度模糊算法的分析和仿真

Analysis and Simulation on Solving Radar Seeker Velocity Ambiguity Algorithm Based on Look-up Table Method

采用中/低脉冲重复频率的脉冲多普勒雷达,速度模糊是其存在的一个常见问题。如何解模糊并准确地估计目标的真实速度是脉冲多普勒雷达的一个重要任务。但通常的解模糊算法存在算法复杂、容错性差、运算量大、不易工程实现等问题。本文提出了一种基于查表的解速度模糊算法,该方法在易于工程实现的同时,保证了解模糊的精度和容错性,最后通过仿真验证了该方法的有效性和容错性。

Velocity Ambiguity is an inherent matter of PD （ pulse Doppler） radar in which the M/L pulse repetition frequency（ PRF） is used. It is an important task for radar to solve velocity ambiguity and estimate the target real velocity accurately. However, the algothims usually used for solving amgiguity are complex, bad error tolerance and big operand. An algorithm for solving velocity ambiguity based on Look-up table method is given. Using this algo-rithm can ensure accuracy of solving ambiguity and better error tolerance while it is easily realized in engineering. And finally, the effectiveness and error tolerance of this algorithm is verified by simulation.