Optimizing NLOS error by NLOS error identification and mitigation. By simulation comparing the optimization results with unoptimizable results and showing the improvement effect after mitigating NLOS error. 使用NLOS误差的鉴别和抑制算法对其优化,并在实际的信道环境中将优化之后的结果与优化之前的定位算法结果进行仿真比较,显示出抑制NLOS误差的改进效果。