%%************************【判断干扰类型函数】****************************%%
%%=============================参数说明===================================%%
% J:       检测出来的干扰点集合
%Type: 干扰类型
%%========================================================================%%
function Type = JudgeTypeJam(J)
J = sort(J,'ascend');
len_J = length(J);
c1 = 1;
band = cell(0,0);
mono_d = cell(0,0);
mono = [];
if len_J == 0
    Type = 'No jam';
elseif len_J <= 3  %&& len_J > 0                                                             %% 检测点数小于3，判断是离散还是连续（单音或者多音）
    if len_J == 1
        Type = 'mono';
    else
        if len_J == 2 
            if J(2)-J(1) == 1
                Type = 'mono';
            else
                Type = 'multi';
            end
        else
           if J(3) - J(1) == 2
                Type = 'mono';
           else
                Type = 'multi';
           end
        end
    end
else
    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
        if (c2 == 2 || c2 == 1)
            mono_d = [mono_d;(J(c1:1:c1+c2))];                             %% 频谱扩散的单音
        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
    num_band = numel(band);
    num_mono_d = numel(mono_d);
    num_mono = length(mono);
    num_multi = num_mono + num_mono_d;
    if num_band ~= 0 
        if num_multi == 0
             Type = 'band';
        else
            if num_multi >1
                 Type = 'band_multi';
            else
                 Type = 'band_mono';
            end
        end
    else
        Type = 'multi';
    end                     
end
%% end