IRIG106标准在高速模拟数据记录中的应用

Application of IRIG106 Standard in High-Speed Analogy Data Recording

摘要: IRIG106第10章采集记录标准是国际公认的采集记录标准，但是采用IRIG106标准记录高速模拟量数据时经常存在用于存储记录格式的数据量过大的问题，极端情况下存储记录格式的数据量是有意义的记录数据量的15倍以上。为解决该问题，本文根据高速模拟量数据采集的特点，通过在采集电路增加缓冲区，采取数据多次采集、集中记录的方式，减少了记录格式产生的数据量，节约了记录数据的存储空间。经过分析该方法可以极大的减少记录格式引起的存储开销，当采集频率为16 KHz时格式存储开销可控制到净数据量的1%以下。

Abstract: Digital recording standard in IRIG106 chapter 10 is acknowledged internationally, however, memory used for format data usually was huge in high-speed analog signal recording when IRIG106 was adapted, and the format data could be 15 times as much as valuable data in extreme case. In order to solve the problem of format data amount, sampling more than once and recording in batches through additional cache in sampling circuit was adapted based on the specialty of high- speed analog signal sampling, which decreased storage memory of recording data. Storage cost of format data could be cut down sharply by using this method, and by taking the sampling frequency of 16 kHz as an example, we can find the net format data could be less than 1% of valuable data.