通过固体火箭发动机外壳屏蔽衰减分析、点火电路的合理设计和在点火电路中引进低通滤波器,使固体火箭发动机在采用常规电点火器的条件下达到对射频辐射和静电危害防护的基本要求.这种安全设计考虑方法简单,效果明显,是解决固体火箭发动机“双防”问题的一个切实可行的途径. The solid rocket engine enclosure shielding attenuation analysis, the reasonable design of the ignition circuit and the introduction of low-pass filter in the ignition circuit make the solid rocket motor meet the basic requirements of radio frequency radiation and electrostatic hazard protection under the condition of using conventional electric igniter. This method of safety design is simple and effective, which is a feasible way to solve the “double prevention” problem of solid rocket motor.