基于北斗三号短报文的共视数据压缩传输方法

共视时间比对通过交换两地共视数据完成远距离高精度的时间比对。针对无地面通信网地区，本文提出了一种基于北斗短报文的共视数据压缩传输方法，该方法通过将共视数据进行压缩，利用北斗的短报文功能对压缩后的共视数据进行实时传输，在无地面通信网的地区进行了共视时间比对试验。试验结果表明，本文设计的共视数据压缩方法具有较好的压缩效果，可以通过北斗短报文实现无地面通信网的情况下的实时共视时间比对。

Compressing and Transmission Method of Common-view Data Based on BDS-3 Short Message

Common-view time transfer involves exchanging the common-view data of two locations to complete long-distance and high-precision time comparison. This paper proposes a method for compressing and transmitting common-view data based on Beidou short message for areas without ground communication network. The method compresses the common-view data and uses the short message function of Beidou to transmit the compressed data in real time. A comparison test has been conducted in an area without a ground communication network. The test results demonstrate that the common-view data compression method designed in this paper has a significant compression effect and can achieve real-time common-view time transfer without a ground network through Beidou short message.