Vector GPS signal tracking algorithm (vector delay locked loop VDLL or VDFLL can be used) Task requirements: complete the simulation of traditional GPS signal tracking algorithm and vector GPS signal tracking algorithm, and compare and prove that the performance of vector method is better than traditional tracking method .
The content of comparison can refer to the following:
- Comparing the two, when a certain satellite disappears and reappears for a period of time, the vector tracking method can still be tracked, but the traditional tracking method cannot, such as literature [1][3][5].
- Compare the performance indicators of vector tracking and traditional tracking loops, such as literature [2][4].
The MATLAB design code is designed according to the above figure in the paper 5 you provided. For related theories, refer to page 46 of the paper 5 you provided.
The first is to capture the results. The two methods are the same.
Traditional algorithm:
The Doppler frequency moves, and when the signal is interrupted, an obvious city lock occurs.
VDLL algorithm:
The comparison effect is as follows:
