Anti-interference Antenna Based Near-Far Effect Mitigation Method

Satellite navigation receivers are designed with regard to the fact that the levels of satellite signals reaching the earth's surface are weak and relatively unchanged.This paper firstly describes the concepts relating to the near-far problem and particularly analyzes the objective of near-far effect mitigation aimed at raising near-far ratio,then summarizes in depth the existing solutions and their relative merits,then further proposes a solution to near-far effect mitigation by employing adaptive anti-interference antennae,and finally,through experiment on a hardware-in-the-loop simulation platform established therefor,proves the effectiveness of such solution in raising near-far ratio and enlarging the coverage of pseudolite argumentation system.