54 lines
1.7 KiB
Matlab
54 lines
1.7 KiB
Matlab
%2024-11-09-verify IIR IP core
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clc;clear;close all
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in = importdata("/home/thfu/work/TailCorr/sim/in.dat");
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diff_in = importdata("/home/thfu/work/TailCorr/sim/diff_in.dat");
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wave_verdi = importdata("/home/thfu/work/TailCorr/sim/OrgOut.dat");
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dout0 = importdata("/home/thfu/work/TailCorr/sim/dout0.dat");
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dout1 = importdata("/home/thfu/work/TailCorr/sim/dout1.dat");
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dout2 = importdata("/home/thfu/work/TailCorr/sim/dout2.dat");
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dout3 = importdata("/home/thfu/work/TailCorr/sim/dout3.dat");
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N = length(dout0);
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cs_wave = zeros(4*N,1);
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cs_wave(1:4:4*N) = dout0;
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cs_wave(2:4:4*N) = dout1;
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cs_wave(3:4:4*N) = dout2;
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cs_wave(4:4:4*N) = dout3;
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A = [0.025 0.015 0.0002 0.2];
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tau = -[1/250 1/650 1/1600 1/20];
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fs = 0.375e9;
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coef_len = length(A);
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for i = 1:coef_len
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b(i) = exp(1e9/fs/(1-A(i))*tau(i));
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a(i) = A(i)/1/(1-A(i))*exp(1e9/fs/(1-A(i))/2*tau(i));
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h_ideal(:,i) = filter(a(i),[1 -b(i)],diff_in);
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end
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wave_float = in+ sum(h_ideal,2);
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wave_float_len = length(wave_float);
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wave_float_8 = interp1(1:wave_float_len,wave_float,1:1/8:(wave_float_len+1-1/8),'linear')';
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[cs_wave_A,wave_float_8_A,Delay] = alignsignals(cs_wave,wave_float_8);
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N = min(length(wave_float_8_A),length(cs_wave_A));
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figure(2)
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diff_plot(wave_float_8_A(18:end), cs_wave_A(82:end),'float','verdi',[0 N]);
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%%
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[wave_float_A,wave_verdi_A,Delay] = alignsignals(wave_float,wave_verdi);
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N = min(length(wave_float_A),length(wave_verdi_A));
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figure(1)
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diff_plot(wave_float_A, wave_verdi_A,'float','verdi',[0 N]);
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%%
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signalAnalyzer(wave_float,wave_verdi,'SampleRate',1);
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%%
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fprintf("a is %.10f\n",a)
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fprintf("b is %.10f\n",b)
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%%
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fprintf("a of 32 bit %d\n",round(a*2^31));
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fprintf("b of 32 bit %d\n",round(b*2^31));
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