%%************************【多音干扰输出参数函数】****************************%%
%%=============================参数说明===================================%%
% J 检测出来的干扰点集合
% data 频域数据
% fs 采样频率
% NFFT FFT点数
% Power_multi 多音干扰功率集合
% f_multi 多音干扰频率集合
% Num_multi 多音干扰个数
%%========================================================================%%
function [Num_multi,f_multi,Power_multi] = Multi_Parameter(data,J,fs,NFFT)
J = sort(J,'ascend')-1;
len_J = length(J);
mono_d = cell(0,0);
mono_s = cell(0,0);
mono = [];
f_d = [];
f_s = [];
power_m = [];
power_d = [];
power_s = [];
c1 = 1;
    while c1 < len_J
        c2 = 0;
        while (c1 + c2 + 1 <= len_J && J(c1) + c2 + 1==J(c1 + c2 + 1))
               c2 = c2 + 1;
        end
        if c2 == 2
            mono_d = [mono_d;(J(c1:1:c1+c2))];                             %%频谱扩散的单音
        end
        if c2 == 1
            mono_s = [mono_s;(J(c1:1:c1+c2))];
        end
        if c2 == 0
            mono = [mono,J(c1)];
        end
         c1 = c1 + c2 +1;
        if c1 == len_J && J(len_J-1) + 1 ~= J(len_J)
            mono = [mono,J(len_J)];
        end
    end
    for k = 1:numel(mono_d)
        f_d(k) = mono_d{k}(2)*fs/NFFT/10^6;
        power_d(k) = sum(abs(data(mono_d{k}+1)).^2)/NFFT^2;
    end
    for m = 1:numel(mono_s)
        f_s(m) = 0.5*(mono_s{m}(1)+mono_s{m}(2))*fs/NFFT/10^6;
        power_s(m) = sum(abs(data(mono_s{m}+1)).^2)/NFFT^2;
    end
    power_m = abs(data(mono+1)).^2/NFFT^2;
    mono = mono*fs/NFFT/10^6;
    power_multi1 = [power_m,power_d,power_s];
    f_multi1 = [mono,f_d,f_s];
    [f_multi,index] = sort(f_multi1,'ascend');
    Power_multi = power_multi1(index);
    Num_multi = length(f_multi1);
end