在距离和能量电平都变化的多个噪声干扰机的环境中,探讨了雷达噪声干扰功率与雷达热噪声功率的比值J/N。对于一些实际的多个噪声干扰机配置的情况。本文给出了一个计算J/N的比较简单的形式。 In the environment of multiple noise jammers with varying distance and energy levels, the ratio J / N of the radar noise interference power to the radar thermal noise power is discussed. For some practical multiple noise jammer configurations. This article gives a relatively simple form for calculating J / N.