基于Matlab的脉冲雷达检测仿真

摘要

Noise signal and target-pose change would interfere with radar detection signal and destroy the echo phase coherence, aiming at this problem, the relationship of among the pulse radar detection range, RCS(target area) and SNR(signal-to-noise ratio) is described,and based on this, the improvement on the detection range of the pulse coherent accumulation and non-coherent accumulation is analyzed.Under certain conditions of false alarm probability and pulse accumulation number, the detection probabilities of different fluctuation models are compared. In addition, the relationship of between detection probability and detection distance is acguired via Peebles empirical formula. Finally, the simulation and data comparison are done, and indicate the effectiveness of the model and method.%噪声信号和目标姿态变化对雷达检测信号产生干扰，破坏其回波相位相参性。针对此问题，介绍脉冲雷达检测距离、目标截面积（RCS）与信噪比（SNR）的之间关系，并在此基础上分析脉冲相干积累和非相干积累对检测距离的改善。在虚警概率和脉冲积累数一定的条件下，对比了不同起伏模型的检测概率，同时运用Peebles经验式得到检测概率与探测距离的关系式。最后，通过仿真实验和数据对比，验证了所提模型和方法的有效性。