Abstract:

The problem that the direct-path reference signal is affected by noise and multi-path interference signals is analyzed, and then the simulation model on the problem is established. On the basis of the analysis and the simulation model, the waveform of the direct-path pulse signal under noise and multi-path interference signals is simulated. To mitigate this problem, a new method for direct-path reference signal reconstruction is proposed, and a full mathematical derivation is provided in detail. The simulation results show that the waveform degree of distortion of the direct-path reference signal reconstructed by this new method is very low, and the noise and multi-path interference signals can be removed from the direct-path reference signal effectively.