function?loc_point=FingerLocFun（APxAPyFPxFPyfp_powerap_powerap_gainfp_gainp_xp_ynoiseidk）;
%id:算法ID號，1、NN??2、KNN?3、WKNN?4、Bayes?5、Kbayes?6、Dbayes

%loc_point=[0?0];
[ap_rap_num]=size（APx）;
[fp_rfp_num]=size（FPx）;
rp_power=zeros（1ap_num）;

for?j=1:1:ap_num?
????dis=sqrt（（p_x-APx（j））*（p_x-APx（j））+（p_y-APy（j））*（p_y-APy（j）））;
????loss_db=32.44+20*log10（2400）+20*log10（dis/1000）;?
????rp_power（1j）=ap_power+ap_gain+fp_gain-loss_db-noise;
end

dis_power=zeros（1fp_num）;
for?i=1:1:fp_num
????d_sum=0;
????for?j=1:1:ap_num
????????d_sum=（fp_power（ij）-rp_power（1j））*（fp_power（ij）-rp_power（1j））+d_sum;
????end
????dis_power（1i）=sqrt（d_sum）;
end

temp_fpx=FPx;
temp_fpy=FPy;
temp_dispow=dis_power;
temp_power=fp_power;
temp=0;

for?i=1:1:fp_num-1????????????????????????????????????%冒泡法排序
????for?j=1:1:fp_num-i
????????if（temp_dispow（j）?>?temp_dispow（j?+?1））
????????????
????????????temp?=?temp_dispow（j）;
????????????temp_dispow（j）?=?temp_dispow（j+1）;
????????????temp_dispow（j+1）?=?temp;
????????????
????????????for?n=1:1:ap_num????????????????????????????%對接收信號強度值該行的所有值進行交換
????????????????temp?=?temp_power（jn）;
????????????????temp_power（jn）?=?temp_power（j+1n）;
????????????????temp_power（j+1n）?=?temp;
????????????end
????????????
????????????temp?=?temp_fpx（j）;
????????????temp_fpx（j）?=?temp_fpx（j+1）;
????????????temp_fpx（j+1）?=?temp;
????????????temp?=?temp_fpy（j）;
????????????temp_fpy（j）?=?temp_fpy（j+1）;
????????????temp_fpy（j+1）?=?temp;
????????end
????end
end

x_sum?=?0;
y_sum?=?0;
u=0;
sigma=0.3;%%%%%%%%%%%%%%%%%%%%%%%;
switch?（id）
????case?1????????????????????????????????????????????%NN
????????x_sum=temp_fpx（1）;
????????y_sum=temp_fpy（1）;
????case?2????????????????????????????????????????????%KNN
????????for?i=1:1:k
????????????x_sum=x_sum+temp_fpx（i）;
????????????y_sum=y_sum+temp_fpy（i）;
????????end
????????x_sum=x_sum*1.0/k;
????????y_sum=y_sum*1.0/k;
????case?3????????????????????????????????????????????%WKNN
????????w_sum=0.0;
????????for?i=1:1:k
????????????x_sum=x_sum+temp_fpx（i）*（1.0/（temp_dispow（i）?+?0.0001））;
????????????y_sum=y_sum+temp_fpy（i）*（1.0/（temp_dispow（i）?+?0.0001））;
????????????w_sum=w_sum+1.0/（temp_dispow（i）?+?0.0001）;
????????end
????????x_sum=x_sum*1.0/w_sum;
????????y_sum=y_sum*1.0/w_sum;
????case?4
????????p_list?=?zeros（1fp_num）;
????????p_APj_FP?=?0;
????????for?i?=?1:1:fp_num
????????????%獲取P（APj|指紋i）的后驗概率值
????????????p_APj_FPi?=?1.0;
????????????for?j?=?1:1:ap_num
????????????????Skj?=?fp_power（ij）;
????????????????U?=?Skj?+?u;
????????????????p_APj_FPi?=?p_APj_FPi*1.0?/?sqrt（2?*?3.1415926）?/?sigma?*?exp（-0.5?*?（rp_power（1j）?-?U）?*?（rp_power（1j）?-?U）?/?（sigma?*?sigma））;
????????????end
????????????p_list（1i）?=?p_APj_FPi;
????????????p_APj_FP?=p_APj_FP+p_APj_FPi;
????????end
????????p_list%%%%%%%%%%%%%%%
????????for?i?=1:1:fp_num
????????????x_sum=x_sum+FPx（1i）*p_list（1i）/p_APj_FP;
????????????y_sum=y_s

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-09-07?00:16??基于MATLAB的指紋定位算法\
?????文件????????4345??2018-09-06?23:27??基于MATLAB的指紋定位算法\指紋-定位算法MATLAB代碼.rar
?????目錄???????????0??2018-09-07?00:20??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\
?????文件????????5042??2014-05-03?17:37??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\FingerLocFun.m
?????文件?????????482??2014-05-03?16:39??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\ReceivePowerFun.m
?????文件????????5404??2014-12-03?16:04??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\main.asv
?????文件????????5404??2014-12-03?16:04??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\main.m
?????文件???????46571??2018-09-02?20:33??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\捕獲1.JPG
?????文件???????22712??2018-09-03?11:00??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\捕獲2.JPG
?????文件???????10240??2018-09-07?00:19??基于MATLAB的指紋定位算法\指紋定位算法仿真代碼\新建?DOC?文檔.doc