Abstract: The paper firstly introduces the principle of LANDMARC for indoor location，then the model is established based on ‘distance-loss’ formula，the parameters satisfying error request can be finally obtained by stimulating experiments，and two methods are used to simulate the noise of environment.Simulation results show the parameter adjusted has strong anti-jamming ability，and provides the direction for the experiment and implement of LANDMARC.

摘要： 首先介绍LANDMARC系统室内定位的原理，然后结合“距离-损耗”公式，建立了基于此的模型，在此基础上，对模型参数进行优化，并分别通过引入Z方向矢量和距离噪声系数α，作为干扰因子，较真实地模拟了环境变化所产生影响，得到较理想效果，仿真结果表明优化后参数具有很强的抗干扰能力，并能较好为LANDMARC系统的实验与实施提供科学的引导。