TailCorr/script_m/TailCorr_IP_Test.m

%2024-11-09-verify IIR IP core
clc;clear;close all

in         = importdata("/home/thfu/work/TailCorr/sim/in.dat");       
diff_in    = importdata("/home/thfu/work/TailCorr/sim/diff_in.dat");  
wave_verdi = importdata("/home/thfu/work/TailCorr/sim/OrgOut.dat");   

dout0 = importdata("/home/thfu/work/TailCorr/sim/dout0.dat");  
dout1 = importdata("/home/thfu/work/TailCorr/sim/dout1.dat");
dout2 = importdata("/home/thfu/work/TailCorr/sim/dout2.dat");
dout3 = importdata("/home/thfu/work/TailCorr/sim/dout3.dat");

N = length(dout0);
cs_wave = zeros(4*N,1);
cs_wave(1:4:4*N) = dout0;
cs_wave(2:4:4*N) = dout1;
cs_wave(3:4:4*N) = dout2;
cs_wave(4:4:4*N) = dout3;

A   =  [0.025 0.015 0.0002 0.2];
tau = -[1/250 1/650 1/1600 1/20];
fs  = 0.375e9;

coef_len = length(A);
for i = 1:coef_len
    b(i) = exp(1e9/fs/(1-A(i))*tau(i));
    a(i) = A(i)/1/(1-A(i))*exp(1e9/fs/(1-A(i))/2*tau(i));  
    h_ideal(:,i) = filter(a(i),[1 -b(i)],diff_in);
end

wave_float = in+ sum(h_ideal,2);

wave_float_len = length(wave_float);
wave_float_8 = interp1(1:wave_float_len,wave_float,1:1/8:(wave_float_len+1-1/8),'linear')';

[cs_wave_A,wave_float_8_A,Delay] = alignsignals(cs_wave,wave_float_8);
N = min(length(wave_float_8_A),length(cs_wave_A));
figure(2)
diff_plot(wave_float_8_A(18:end), cs_wave_A(82:end),'float','verdi',[0 N]);
%%
[wave_float_A,wave_verdi_A,Delay] = alignsignals(wave_float,wave_verdi);
N = min(length(wave_float_A),length(wave_verdi_A));
figure(1)
diff_plot(wave_float_A, wave_verdi_A,'float','verdi',[0 N]);
%%
signalAnalyzer(wave_float,wave_verdi,'SampleRate',1);
%%
fprintf("a is %.10f\n",a)
fprintf("b is %.10f\n",b)
%%
fprintf("a of 32 bit %d\n",round(a*2^31));
fprintf("b of 32 bit %d\n",round(b*2^31));