clear, clc, close all fs = 44100; T = 0.1; N = round(T*fs); t = (0:N-1)/fs; x = sin(2*pi*5000*t); xhat = x.*exp(1i*2*pi*2000*t); [Xamp, ~, freq] = spectrum(x, fs); [Xamphat, ~, ~] = spectrum(xhat, fs); figure(1) plot(freq/1000, Xamp, 'b', '...
% wc is the interval pulse; % to plot the amplitude spectrum: stem(wc,abs(ck)) %[wc,w0,a0,ak,bk,c0,ck]=get_harmoniques(y,pas) % be a signal x(t). % For more theorical details look athttp://www.azzimalik.com N=length(y); Y=fft(y); if size(Y,2)==1; Y=Y'; end ...
xlabel('Frequency/GHz'); ylabel('Amplitude/V'); title('double Amplitude spectrum'); figure;%相位谱 plot(double_f*1e-9,angle(gauss_spec),'linewidth',2.5); xlabel('Frequency/GHz'); ylabel('Phase/rad'); title('double Phase spectrum'); figure;%功率谱 double_power_spec_W=abs(gauss_spec...
subplot(2,1,1), plot((0:(NS-1))/NS*fe2, s1), grid title(‘Single-Sided Amplitude Spectrum of s(t)’) xlabel(‘Frequency (Hz)’) ylabel(‘|s(k)|’) x1 = abs(fft(x,NS)); subplot(2,1,2), plot((0:(NS-1))/NS*fe2, x1), grid title(‘Single-Sided Amplitude Spectrum of...
title('double Amplitude spectrum'); figure;%相位谱 plot(double_f*1e-9,angle(gauss_spec),'linewidth',2.5); xlabel('Frequency/GHz'); ylabel('Phase/rad'); title('double Phase spectrum'); figure;%功率谱 double_power_spec_W=abs(gauss_spec).^2; ...
title('Single-Sided Amplitude Spectrum of y(t)') xlabel('Frequency (Hz)') ylabel('|Y(f)|') 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 在以上代码中,fs是采样率,N是输入信号的长度,Y是通过FFT计算得到的频域数据,f是频率向量,P是幅值数据。然后,我们从计算FFT后的输出数据中提取信号的幅值...
% % title('amplitude spectrum'),xlabel('frequency'),ylabel('amplitude') 1. % 1. % 1. % % yQAM16=QAM16(1,10000,20); 1. % yQAM16=QAM16(20); 1. % 1. % % 1. % % figure(2); 1. % % 1. % yQAM16=yQAM16(1:L); ...
t=0:0.001:tmax; fs=1000; tsamp=0:1/fs:tmax; f1 = 18; f2 = 321.37; y = sin(2*pi*f1*tsamp) + sin(2*pi*f2*tsamp); figure(); plot(t, y); grid on; how do I plot it's amplitude spectrum?댓글 수: 0 댓글을 달려면 로그인하십시오.이...
title('double Amplitude spectrum'); figure;%相位谱 plot(double_f*1e-9,angle(gauss_spec),'linewidth',2.5); xlabel('Frequency/GHz'); ylabel('Phase/rad'); title('double Phase spectrum'); figure;%功率谱 double_power_spec_W=abs(gauss_spec).^2; ...
energy,需要把amplitude放大一倍 (f=0不需要放大), 这样就得到了single-sided spectrum P (513个点...