Research on the personal maritime search and rescue terminal

摘要

This paper analyzes the AIS technology and its protocol, and discussed principle and performance of search and rescue terminal, and put forward a design scheme of individual maritime search and rescue terminal. The circuit and the corresponding program is designed according to the scheme, the circuit design is focused on analyzing the modulation circuit, carrier generation circuit, two-point modulation technology, matching circuit, programming is focused on analyzing the GPS information interception and analytic, AIS message encoding and transmission control system. Finally, we made and test the actual individual maritime search and rescue terminal on the basis of this scheme, ensure the functional correctness and system implementation.