As the key function subsystem, the electromagnetic compatibility (EMC) performance of wireless system directly restrictes the reliability of rocket. To investigate the EMC performance of wireless system of solid rocket, a research method was made. Firstly, the electromagnetic radiation characteristic of antenna, the coupling degree between wireless devices, and the whole E-field distribution of the system were respectively simulative analyzed. Then based on the simulation results, a prediction of the system having not achieve EMC was made. Secondly, a series of EMC tests of system were designed, including EMC validate tests, the tabletop dispersedly system EMC test (without the influence of configuration), and the system matching tests. The implement of these tests respectively validated the EMC performance of system at device level, tabletop (subsystem) level and system level. Based on the test results, a conclusion that the system is EMC was obtained. Combined with the simulation and test results, the method is confirmed to be feasible, and valuable for engineering application, and is applicable for EMC design and validation of complicated system. ©, 2015, Journal of Solid Rocket Technology. All right reserved.
