Abstract:The integration and modularization of the missile-borne system has become a trend. Based on this, it is proposed to use DSP to realize the control of the Precision Guidance Kit (PGK) system and to complete the missile guidance and control tasks, in order to improve the reliability of the missile-borne system and the combat capability of the missile; the design process of hardware and software of the PGK control system is described, including the design and function introduction of the control module, GPS receiver, geomagnetic measurement module, wireless setting module, etc., as well as the software workflow and software modules. The flight test was carried out by launching the modified missile with the PGK, and the test results of the GPS module and the geomagnetic measurement module showed that the system can basically realize the module function.