tempt.m

这是在uwb系统中,用TOA定位法的整个系统的仿真程序

 %------------------- AP1 receiver ------------------------------
    % Correlator
    received_signl_ap1 = sum(ap1_tag_chan_wgn)/num_bits;
    xc1 = xcorr(y, received_signl_ap1);
    [a,delay1]=max(xc1(1:5:2000));
    TOA_1 = (length(sig)/5 - delay1) * ts*5;
%     TOA_1 = delay1 * ts;

    %------------------- AP2 receiver ------------------------------
    % Correlator
    received_signl_ap2 = sum(ap2_tag_chan_wgn)/num_bits;
    xc2 = xcorr(y, received_signl_ap2);
    [a,delay2]=max(xc2(1:5:2000));
    TOA_2 = (length(sig)/5 - delay2) * ts*5;
%     TOA_2 =  delay2 * ts;

    %------------------- AP3 receiver ------------------------------
    % Correlator
    received_signl_ap3 = sum(ap3_tag_chan_wgn)/num_bits;
    xc3 = xcorr(y, received_signl_ap3);
    [a,delay3] = max(xc3(1:5:2000));
    TOA_3 = (length(sig)/5 - delay3) * ts*5;
    
%     TOA_3 =  delay3 * ts;
    %---------------------------------------------------------------
%     time_ap_tag = time_ap_tag;
    time_dur = [TOA_1 TOA_2 TOA_3];
    [ex,ey]=TOA_LS(0,AP(:,1),AP(:,2),time_dur*3e8)
    toa_error = toa(AP, Tag, time_dur, light_speed);
    kkk