1.单位冲激信号 单位冲激信号(unit impulse signal)是最基本的信号,定义如下: {δ(t)=0,t≠0∫−∞∞δ(t)dt=1δ[k]={1,k=00,k≠0 代码: k=-10:10;yd=(k==0);stem(k,yd);xlabel('k');ylabel('f[k]');title('unit impulse signal'); 图形: stem()函数是用来画离散信号图的,第一...
そのため、k番目の入力で挿入されたステップへの応答のパラメーターの発展は、配列pOut(:,:,k)で与えられます。行ベクトルpOut(i,:,k)には、i番目のタイム ステップのパラメーター値が含まれます。 ヒント 任意の入力信号へのシステム応答をシミュレーションするには、lsimを使用しま...
Copy Code Copy Command Create a unit impulse signal. Get n = 128; sig = zeros(1,n); sig(n/2) = 1; clf plot(sig) axis tight title("Unit Impulse") Obtain the MODWT of the signal down to level 4 using default modwt settings. Obtain a second MODWT of the signal down to level ...
tf2zpk (Signal Processing Toolbox) (northwestern.edu) Note You should use tf2zpk when working with transfer functions expressed in inverse powers (1 + z-1 + z-2), which is how transfer functions are usually expressed in DSP. A similar function, tf2zp, is more useful for working with...
which handles both finite impulse response (FIR) and infinite impulse response (IIR) filters[1]. Here,X(z) is the Z-transform of the input signalx,Y(z) is the Z-transform of the output signaly,nais the feedback filter order, andnbis the feedforward filter order. Due to normalization...
Copy Code Copy Command The rcosdesign function designs finite impulse response (FIR) raised cosine (RC) and square-root raised cosine (RRC) filters. The function returns the FIR coefficients as output. To apply filtering to a signal use the upfirdn function with the coefficients returned by rcos...
Create a signalxthat has a Gaussian shape. Convolve this signal with an impulse responsehthat consists of random noise. N = 200; n = 0.1*(1:N); rng("default") x = 2*exp(-0.5*((n-10)).^2); h = 0.1*randn(1,length(x)); y = conv(x,h); ...
%发射换能器水深 Unit:mH2 = 5; %接收换能器水深 Unit:mD = 1; %接收与发射换能器水平距离 Unit:mRe_coef_bottom = 1; %水底反射系数 %%sample_num = fix(Sample_time*fs); %采样总点数nTs = (0:sample_num-1)/fs; %离散的采样时刻%生成水听器接收数据receive_signal0 =data_generation(c,fs,...
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The system is excited with a unit impulse in the positive direction. Compute the time evolution of the system using the transfer function. Plot the response. Get bf = [1 -(1+cos(dt)) cos(dt)]; af = [1 -2*cos(dt) 1];