作者：孟鑫, 郭鑫, 宫铭举, 王艳

作者单位：天津理工大学, 天津 300384

关键词：性能检测; 解码; 比特定位; 船舶自动识别系统; 时间频率特性; 时间功率特性

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。

Performance detection of AIS signals based on decode position

MENG Xin, GUO Xin, GONG Ming-ju, WANG Yan

Tianjin University of Technology, Tianjin 300384, China

Abstract: 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.

Keywords: performance detection; decoding; bit-position; AIS; time-frequency function; time-power function

2014, 40(4): 141-144  收稿日期: 2013-7-14;收到修改稿日期: 2013-9-25

基金项目: 

作者简介: 孟鑫(1981-),男,天津市人,讲师,硕士,研究方向为移动通信。

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