A New Method of Wild Value Elimination for Digital Code Tracking Loop

In view of the problem that the tracking performance declines caused by wild value from phase error discriminator, this paper proposes a new method of wild value elimination. The method adaptively regulates elimination threshold for wild value based on the range of phase error discrimination and loop state of code tracking loop. Simulation results indicate that the principle of the method is correct and it performs well for code tracking loop. Compared with the normal code tracking loop, it is seen that the loop using this method has high precision and strong anti-jamming capacity.