中文说明：此文档里共有四种实现无线定位网络的算法的matlab实现，可能有问题，但主要部分已经写出来了，大家可以参考，有问题的地方只是某个细节，只要仔细研究就能写出正确的算法。
English Description：
This document consists of four kinds of realization of wireless locationnetwork algorithm to achieve the MATLAB, may be a problem, but themain part has been written, we can refer to, where the problem is just a detail, as long as careful study can write the correct algorithm.