摘要: VBI data transmission is usually called television data broadcast, which uses the television field blanking interval to transmit the data at the form of broadcast. It deals with the data signals loaded during the television field ... 展开 VBI data transmission is usually called television data broadcast, which uses the television field blanking interval to transmit the data at the form of broadcast. It deals with the data signals loaded during the television field blanking interval, then one way transmits them at the rate of 16kbps～4.8Mbps by time division multiplexing. This paper we will analyze the form of the data broadcast pages and corrective coding , and bring forward the conception of the equivalent paginal byte error rate, based on which, we will analyze quantitatively the misjudging probability of the error detecting code of longitudinal direction checking and CRC-16 checking, and also we explain how overwrite improvement to the paginal errors,as well as how to optimize receiving strategy. 收起