Counter-Set Based PCR Jitter Correction Method for DVB-T System

DVB-T is a popular digital video broadcasting standard for wireless digital terrestrial television implementation. Program clock reference, PCR in short, is an important time stamp in DVB-T transport stream. The reason PCR jitter based on DVB-T standard is analyzed and some methods for PCR jitter correction are described and compared. A new method to correct PCR is presented, named as Counter-Set. The principle and system implementation for the method are discussed, and this method is compared with original ones for PCR jitter correction. Counter-Set method and Compensation method are implemented based on FPGA. Results are presented and compared. We get the conclusion that the new method greatly reduces the use of logic units, so it is more efficient than the original one.