Application of EMC design in launcher multichannel signal testing and processing system

Aiming at the electromagnetic environments and the strict request of EMC in the field of aerospace vehicle launching, a multi-channel signal testing and processing system of launcher is setup based on several EMC design methods. The operating principles of EMC design of the system are presented, and the designing ideas of power supply, signal isolating, PCB designing and filtering are stressed on. The methods of EMC design are valuable for the design of electric devices in aerospace test.