%%************************【频带干扰输出参数函数】****************************%%
%%=============================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_band 频带干扰功率
% f_wide 频带干扰带宽
% f_start频带起始频率
% f_end频带截止频率
% Num_band 频带干扰个数
%%========================================================================%%
function [Num_band,f_start,f_end,f_wide,Power_band] = Band_Parameter(data,J,fs,NFFT)
    J = sort(J,'ascend')-1;
    len_J = length(J);
    f_start = [];
    f_end = [];
    c1=1;
    band = cell(0,0);
    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)
            band = [band;(J(c1:1:c1+c2))];                                 %%连续点超过3，记为频带干扰
        end
        c1 = c1 + c2 +1;
    end
   for k = 1 : numel(band)
       f_start(k) = band{k}(1)*fs/NFFT/10^6;
       f_end(k) = band{k}(end)*fs/NFFT/10^6;
       Power_band(k) = 2*sum(abs(data(band{k}(1:end)+1)).^2)/NFFT^2;
   end
       f_wide = sum(abs(f_end - f_start));
       Num_band = length(f_end);
end