A near-far effect mitigation method of pseudolites based on array signal

Abstract

This paper proposes a new near-far effect mitigation method based on array signal to resolve the near-far problem in pseudolites. It can adjust the power intensity of the pseudolite by constraining the beam direction to make it accord with the real navigational signal. Meanwhile, this method achieves maximum interference signal filtering, thus the navigation receiver can work properly under the concurrence of pseudolites, strong interferences and navigation signals. The effectiveness of the proposed method is proved through simulations and performance analysis.