global ...
    B ...
    T_p ...
    f_s ...
    T_s ...
    f_c ...
    PRF ...
    T_r ...
    t_single_pulse ...
    c ...
    N ...
    M ...
    R_0...
    delta_R_wide ...
    delta_R_narrow ...
    N_wide ...
    N_narrow ...
    ranges_wide...
    ranges_narrow ...
    betas_wide ...
    betas_narrow ...
    trail_times...
    method ...
    N_high ...
    LASSO_lambda ...
    tau ...
    iter_max ...
    FAR_N ...
    FAR_M ...
    Ns Ms lambdas sigmas
;

B = 10e5;
T_p = 1e-5;
f_s = B;
T_s = 1 / f_s;
f_c = 1e9;
duty_cycle_inv = 10;
T_r = T_p * duty_cycle_inv;
PRF = 1 / T_r;

t_single_pulse = 0: 1 / f_s: T_r - 1 / f_s;

c = 3e8;

N = length(t_single_pulse);
N_high = T_p * f_s;
M = round(T_p * B);
R_0 = 0;

delta_R_wide = c ./ 2 ./ B; % 宽带情况下的距离分辨力
delta_R_narrow = T_p .* c ./ 2; % 窄带情况下的距离分辨力

N_wide = FAR_N; % 宽带情况下，发射 480 个脉冲

N_narrow = round(N_wide / M);

ranges_wide = R_0 + (0:N_wide) * delta_R_wide; % [1000, 4000]
ranges_narrow = R_0 + (0:N_narrow) * delta_R_narrow; % [1000, 4000]

% betas_wide = (linspace(1, 0.1, FAR_M * FAR_N) + 1j * linspace(0.1, 1, FAR_M * FAR_N))';
betas_wide = zeros(FAR_M * FAR_N, 1) + 1;
betas_narrow = zeros(FAR_N, 1);
for i = 1: FAR_N
    for j = 1: FAR_M
        idx = (i-1) * FAR_M + j;
        betas_narrow(i) = betas_narrow(i) + betas_wide(idx) * exp(1j * 2 * pi * 2 * delta_R_wide * j / c);
    end
end

trail_times = 250;
% method = "debiased_LASSO";
% method = "LASSO";
% method = "BP";
method = "cVAMPro";
% method = "debiased_LASSO_FISTA";

LASSO_lambda = 0.1;
tau = 1e-6;
iter_max = 1000;

Ns = [256];
Ms = [16];
sigmas = [0.01];
lambdas = zeros(length(Ns), 1);
for i = 1: length(Ns)
    lambdas(i) = Map(Ns(i) + "_" + Ms(i));
end