DVHOP定位算法源程序MATLAB

%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  DV-Hop算法  ~~~~~~~~~~~~~~~~~~~~~~~~
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
% BorderLength-----正方形区域的边长，单位：m
% NodeAmount-------网络节点的个数
% BeaconAmount---信标节点数
% Sxy--------------用于存储节点的序号，横坐标，纵坐标的矩阵
%Beacon----------信标节点坐标矩阵;BeaconAmount*BeaconAmount
%UN-------------未知节点坐标矩阵;2*UNAmount
% Distance------未知节点到信标节点距离矩阵;2*BeaconAmount
%h---------------节点间初始跳数矩阵
%X---------------节点估计坐标初始矩阵X=[xy]‘
% R------------------节点的通信距离，一般为10-100m

clearclose all;
BorderLength=100;
NodeAmount=100;
BeaconAmount=20;
UNAmount=NodeAmount-BeaconAmount;
R=30;
% D=zeros（NodeAmountNodeAmount）;%未知节电到信标节点距离初始矩阵；BeaconAmount行NodeAmount列
h=zeros（NodeAmountNodeAmount）;%初始跳数为0；BeaconAmount行NodeAmount列
X=zeros（2UNAmount）;%节点估计坐标初始矩阵

%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~在正方形区域内产生均匀分布的随机拓扑~~~~~~~~~~~~~~~~~~~~
C=BorderLength.*rand（2NodeAmount）;
%带逻辑号的节点坐标
Sxy=[[1:NodeAmount];C];
Beacon=[Sxy（21:BeaconAmount）;Sxy（31:BeaconAmount）];%信标节点坐标
UN=[Sxy（2（BeaconAmount+1）:NodeAmount）;Sxy（3（BeaconAmount+1）:NodeAmount）];%未知节点坐标
%画出节点分布图
plot（Sxy（21:BeaconAmount）Sxy（31:BeaconAmount）‘r*‘Sxy（2（BeaconAmount+1）:NodeAmount）Sxy（3（BeaconAmount+1）:NodeAmount）‘k.‘）
xlim（[0BorderLength]）;
ylim（[0BorderLength]）;
title（‘* 红色信标节点 . 黑色未知节点‘）
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~初始化节点间距离、跳数矩阵~~~~~~~~~~~~~~~~~~~~~~
for i=1:NodeAmount
    for j=1:NodeAmount
        Dall（ij）=（（Sxy（2i）-Sxy（2j））^2+（Sxy（3i）-Sxy（3j））^2）^0.5;%所有节点间相互距离
        if （Dall（ij）<=R）&（Dall（ij）>0）
            h（ij）=1;%初始跳数矩阵
        elseif i==j
            h（ij）=0;
        else h（ij）=inf;
        end
    end
end
%~~~~~~~~~~~~~~~~~~