基于雷达方程修正的目标探测距离评估方法

A Method for Evaluating Target Detection Range Based on Radar Range Equation Modification

针对现有的雷达方程在评估对海雷达最大探测距离上与实际不符的问题,提出了在一般方程的基础上,利用实测数据来修正方程的方法。分析了一般雷达方程应用的局限性,根据试验中海杂波对目标探测的影响,简化一般方程为信杂比方程。利用X波段对海探测雷达的试验数据,对信杂比方程进行修正,克服了方程在实际应用的不足,使方程能够满足该类型雷达对目标的最大探测距离的计算。计算结果表明,修正后方程计算的结果与雷达显示的结果基本相同。

In order to solve the problem that the existing radar equation is not consistent with the reality in evaluating the maximum detection range of sea-to-sea radar,a method is proposed to modify the equation based on the general equation and the measured data.The limitation of the application of the general radar equation is analyzed,and the general equation is simplified to signal-to-clutter ratio equation according to the influence of sea clutter on target detection.The equation of signal-to-clutter ratio is modified by using the experimental data of X-band sea detection radar,which overcomes the deficiency of the equation in practical application and satisfies the calculation of the maximum detection range of the target by this type of radar.The results show that the results calculated by the modified equation are basically the same as those shown by radar.