Electromagnetic compatibility design of terminal system for ship based on GPRS and GPS

EMC reliability design of the terminal system for ship is researched. Firstly, the system shielding technique and static-discharge protection technique are discussed. Then, some problems such as how layout and routing in PCB design affect EMC performance of the system are studied. The article analyzes the factors causing electromagnetic interference and the transmission mode of the interference, also gives the detailed anti-jamming methods in hardware and software design, and the EMC test results. The practical results show that the electromagnetic compatibility design techniques used in the design of the terminal system for ship can well ensure the system electrical reliability performance. The research findings have great significance to the design of the electronic devices for ship in our country.