Study on Pseudo-range Measurement Accuracy based on DTMB Signal

The method of pseudo-range measurement using DTMB signal is described in this paper, then by the method of quadratic fitting of correlation peak to detect peak value, the accuracy of pseudo-range measurement is improved. Data simulation shows that the pseudo-range measurement based on DTMB signal can reach 3.6ns(1σ), but the actual ranging accuracy is 87ns(1σ). This result points out that improvement of the time benchmark of transmitter can improve the pseudo-range measurement accuracy, this conclusion will provide research direction and solution for the subsequent work.