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Sachini Perera


Last seen: 1년 초과 전 |  2021년부터 활동

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SNR for the ECG Signal
Hi sir, I used 2 different methods i saw online to calculate SNR. But the two gave very different answers. One was 16.8817dB wh...

2년 초과 전 | 답변 수: 1 | 0

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Needed RMS for matlab code for a ECG signal
I tried using the matlab RMS for this but it does not work as it is not very detailed. If possile can you supply a code that w...

2년 초과 전 | 답변 수: 1 | 0

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Needed SNR and QRS matlab code for a ECG signal
Hello sir, I am looking for the matlab code to find the SNR and QRS of an ECG signal. I found my ECG signal in physionet but ha...

2년 초과 전 | 답변 수: 0 | 0

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I have a question with finding K and a values.
How do i find the values of K and a of system 2. This has a yeild 18% overshoot and 2% steady state. The equation is K/s(s+a).

3년 초과 전 | 답변 수: 0 | 0

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I need to find the values of K and a of system 1 that yields 15% overshoot and 𝐾𝑣=500 but I cant get pass this error. Please help
pos = 15; Kv = 500; syms a s wn K; gs = K/(s(s+a)); ...

3년 초과 전 | 답변 수: 1 | 0

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fprintf prints Multiple Lines
fprintf('b) Determine the steady state errors:\n\t\t with step input = %.3f,\n\t\t with ramp input = %.3f,\n\t\t with parabola i...

3년 초과 전 | 답변 수: 0 | 0

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This question determine the static error constants, 𝐾𝑝, 𝐾𝑣, and 𝐾𝑎 of all the open-loop systems below and then determine the system types. But i keep getting an error.
and below is the MATLAB i wrote. a = [1,12]; b = [1,15,54]; ...

3년 초과 전 | 답변 수: 1 | 0

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hey. I keep getting an error for this code. If anyone could help me it would be greatly appreciated.
clear; clc; a = [1,12]; b = [1,15,54]; ...

3년 초과 전 | 답변 수: 2 | 0

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How to plot this graph using steps and ramps.
how to plot this graph using steps and ramps .

거의 4년 전 | 답변 수: 0 | 0

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my graph looks weird
Hi, My code is below and the answer i got also is below. But it looks weird with a lot of areas shaded. I want to remove the sh...

거의 4년 전 | 답변 수: 1 | 0

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amplitude and phase spectrum
i have this signal. x=8*cos(30*pi*t+pi/3)+6*sin(50*pi*t-pi/3)+8*cos(70*pi*t-pi/4) i want to make single-sided amplitude spe...

거의 4년 전 | 답변 수: 1 | 0

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