惯性姿态敏感器是卫星姿态测量的重要部件,需要检测和处理微弱的电信号,同时还需要输出加温、电机驱动和激磁等大功率信号,因此整机电磁兼容性设计是实现产品高精度测量的关键技术.提高产品的电磁兼容性能主要在于控制电磁干扰,在总结产品研制经验的基础上对控制产品内部互扰问题进行了探讨,结合典型案例对惯性姿态敏感器内部的“拍频干扰”进行重点分析,并提出了具体的解决措施. Inertial attitude sensor is an important component of satellite attitude measurement. It needs to detect and process weak electric signals, and also needs to output high-power signals such as heating, motor driving and excitation, so the whole machine’s electromagnetic compatibility design is to realize high-precision measurement Of the key technologies to improve the electromagnetic compatibility performance of the product mainly lies in the control of electromagnetic interference, based on the summary of product development experience on the basis of mutual interference within the control products were discussed, combined with typical cases of inertial attitude sensor internal “beat interference ”Focus analysis, and put forward specific solutions.