Design and analysis of two new DLL discriminator algorithms

For the code tracking loop, two new code phase discriminator algorithms based on DLL structure were proposed. The performances of the two algorithms were studied by using theoretical method and experimental method with analog IF signal data and actual IF signal data respectively. The experimental results indicate that both the two algorithms discriminate and track the code phase offset effectively. At the same time, it points out their own application environment, which is very useful for the design and implementation of GPS signal tracking loop.