A Method of Acquiring Carrier Difference Phase in Spread Spectrum Orientation System by Pilot Symbols
扩频定位系统中一种利用导引符号提取载波差分相位的方法

Considering the spread spectrum orientation systems using difference carrier phase to measure distance, this paper proposed a method for acquiring difference carrier phase by using pilot symbol. Using the spread-spectrum codes, signals from different transmitters can be distinguished, and the interstation interference is depressed. In the paper, the mathematical model for the proposed method is deduced, and the mean and variance of the acquired carrier difference phase of the proposed method are analyzed and simulated. The results show that the method is valid.