摘要
为实现对AIS(船载自动识别系统)船台发射时间频率和时间功率指标的性能检测,提出利用矢量信号分析软件进行数据采集,对采集到的数据进行解码再对其进行比特定位的检测方案,以确定AIS信息的第一个Bit发送时刻,推导出针对AIS信号的时间频率、时间功率计算公式。搭建检测平台并对成品船台进行指标检测,在Matlab环境下对数据进行计算处理,得到检测的实验结果,完成对该指标的检测,提高检测的准确性。
In order to implement the transmitter time-frequency and time-power detection of AIS,this paper proposed a new detection scheme to determine the first bit position.It utilizes vector signals analysis(VSA) software for data acquisition.Then decodes these data and gets bit positioning.It also derives the formula of time-frequency function and time-power function of AIS signals and sets up a testing platform to detect the performance of berth.Finally,it calculates the data in matlab to get the results of detection with a higher accuracy.
出处
《中国测试》
CAS
北大核心
2014年第4期141-144,共4页
China Measurement & Test
