一种AIS报文误包率测量系统

摘要

Packet Error Rate of AIS messages is the sole criterion for judgement of the receive-performance of AIS,but now there is no special instruments designed for packet error rate of AIS messages.This article describes a measurement scheme and in the scheme an arbitrary waveform generator is the source for generating standard measurement signal,persional computer is the sink which receives VDM messages from AIS via serial port and calculates the packet error rate.Experiments show that this scheme can meet the requirement and has some practice value.%AIS报文误包率是AIS系统接收性能优劣的唯一判决条件,而目前针对AIS系统进行误包率测量的仪器设备,在国内外尚未见报道.本文对AIS提出了一种AIS报文误包率的测量方案,该方案采用任意波形发生器作为产生标准测量信号的信号源,PC作为信宿端,通过串口接收AIS输出的VDM消息,并进行误包率的计算.实验结果表明,该方案能满足实验要求,具有一定的实用价值.