58 lines
2.1 KiB
Mathematica
58 lines
2.1 KiB
Mathematica
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function [Type,Jam_data,Jam_pos] = SpectrumSense(rx_format,cfgUI)
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addpath(genpath('.\JamDetect'));
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NFFT = 2048;
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PfH = 0.0001;
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Pf = 0.001;
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fs = 20e6;
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operator = cfgUI.JamDetect;
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% 干扰检测
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y = fft(rx_format(1:NFFT,:));
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data_Freuq = y(1:NFFT/2,:);
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J = Selecdt_Detection(data_Freuq,Pf,PfH,32,operator);
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Type = JudgeTypeJam(J);
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% struct jam_data;
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jam_data.Num_multi = 0;
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jam_data.f_multi = 0;
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jam_data.Power_multi = [];
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jam_data.Num_band = [];
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jam_data.f_start = [];
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jam_data.f_end = [];
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jam_data.f_wide = [];
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jam_data.Power_band = [];
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if strcmp(Type,'multi')
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[jam_data.Num_multi,jam_data.f_multi,jam_data.Power_multi] = Multi_Parameter(data_Freuq.',J,fs,NFFT);
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elseif strcmp(Type,'mono')
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[jam_data.f_multi,jam_data.Power_multi] = Mono_Parameter(data_Freuq.',J,fs,NFFT);
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elseif strcmp(Type,'band')
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[jam_data.Num_band,jam_data.f_start,jam_data.f_end,jam_data.f_wide,jam_data.Power_band] = Band_Parameter(data_Freuq.',J,fs,NFFT);
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elseif strcmp(Type,'band_mono')
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[jam_data.f_mono,jam_data.Power_mono,jam_data.Num_band,jam_data.f_start,jam_data.f_end,jam_data.f_wide,jam_data.Power_band] = Band_Mono_Parameter(data_Freuq.',J,fs,NFFT);
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elseif strcmp(Type,'band_multi')
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[jam_data.Num_multi,jam_data.f_multi,jam_data.Power_multi,jam_data.Num_band,jam_data.f_start,jam_data.f_end,jam_data.f_wide,jam_data.Power_band] = Band_Multi_Parameter(data_Freuq.',J,fs,NFFT);
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else
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disp('No jam!');
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end
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Jam_data = jam_data.f_multi;
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dt=1/fs;
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data_abs = 10*log(abs(data_Freuq(J)));
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J_freuq=(J-1)/(dt*NFFT)/10^6; % 采样间隔
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ssf=(0:NFFT/2-1)/(dt*NFFT); % 频率矢量
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data_db=10*log(abs(data_Freuq));
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Jam_pos = J_freuq*10^6;
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% 取对数
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%作图
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% plot(ssf,data_db); % 做幅度频谱图
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% grid on;
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% hold on;
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% stem(Jam_pos,data_abs,'m--','filled','MarkerSize',2)
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% xlabel('frequency');
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% ylabel('magnitude');
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% hold off;
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% pause(0.5);
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% close;
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rmpath(genpath('.\JamDetect'));
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end
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