clear all;
theta=70;
m=-log10(2)/log10(cosd(theta));
P_LED=1;
nLED=60;
P_total=nLED*nLED*P_LED;
Ar=1;
Ts=1;
index=1.5;
FOV=70;
G_Con=(index^2)/(sind(FOV).^2);
rho=0.7;
B=100;
Ibg=5100;
gama=1.5;
Tk=298;
G=10;
eta=112;
gm=30;
I2=0.562;
I3=0.086;
q=1.602176487E-19; %电子电荷量
k=1.380649e-23;
R=0.55; %光电转换系数
lx=10;
ly=10;
lz=3;
h=3;
%1个LED的位置
T1=[2,8,h];
Nx=lx*2.5;
Ny=ly*2.5;
Nz=lz*5;
dA=lz*ly/(Ny*Nz);
x=linspace(0,lx,Nx);
y=linspace(0,ly,Ny);
z=linspace(0.2,lz,Nz);
[XR,YR]=meshgrid(x,y);
D1=sqrt((XR-T1(1,1)).^2+(YR-T1(1,1)).^2+h.^2);
cosphi_A1=h./D1;
receiver_angle=acosd(cosphi_A1);
H_A1=(m+1)*Ar.*cosphi_A1.^(m+1)./(2*pi.*D1.^2);
P_rec_A1=P_total.*H_A1.*Ts.*G_Con;
P_rec_A1(find(abs(receiver_angle)>FOV))=0;
P_rec_total=P_rec_A1;
P_rec_dBm=10*log10(P_rec_total);
figure(1)
surfc(x,y,P_rec_dBm);
zlabel('LOS接收光功率分布/dB');