RDS (Radio Data System) data broadcasting system is modulated digital signal to the FM band (87.5 ~ 108MHz) and send the form of broadcasting a signal transmission system. This transfer mode in North America And Europe have been used, but more and more the concern of other countries. In North America and Europe have Corresponding standards, RBDS and RDS. Transmit data when the data is loaded into the 57kHz subcarrier band. Subcarrier modulated to adapt to a fixed Dual-phase encoded signals. The sub-carrier after suppression to avoid the modulated data in the phase-locked loop stereo decoder Device aliasing while 57kHz frequency as the subcarrier of the ARI system remains the same with Germany Compatible. Send a signal to the group (group), each including 4 (block), each packet Including 26, 16 information and 10 parity information. The entire system, including 32 different Group, representing different information. In the sending process, the radio need to send different group

基于CS8955的RDS解码系统.pdf

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