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FFT: Trouble with getting plausible frequencies
Only 288 data points maybe are not enought to show you the spectrum of your data. With your code, you evaluate an FFT of lengt...

6 years 前 | 0

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Power amplifier transfer function plot
You must plot output power vs input power. And this must be done be regarding that PA's gain is 0dB. The later can be accomp...

6 years 前 | 0

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Number of solutions of a system of linear equations
Hi Gunther. You can use solve() within symbolic toolbox. I'm giving you an example: syms x y z eqn1= 2*x + y +...

6 years 前 | 1

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I have a variable vector like the active: [2 3 4] vector. I select a random element (B) from the active set and use it in a different vector. What function can I use to delete the randomly selected (B) value from the active vector?
Suppose you have a vector x and you want to select , use and then delete a random element of it. Have a look at the following...

6 years 前 | 0

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How to stem plot a complex function in matlab?
Hello You can try this piece of code: clc; close all; x=5:.05:11; y=exp(1i*pi*x); plot3(x, zeros(siz...

6 years 前 | 0

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Plot data in loop with num2str
If you want to display something on your workspace, use disp() instead of plot() balyr=1752; endyr=1966; for k = baly...

6 years 前 | 0

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resample() function in code generation. Any way to use variable Q downsampling factor?
I think is impossible to perform "variable-rate resampling" inside Simulink. The reason is that such a block would change its ou...

6 years 前 | 0

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how to derive the frequency of a periodic noise
Hi Felicia First of all, you should plot magnitude response of your signal using dB scale on y-axis. It help at the visibili...

6 years 前 | 0

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Logarithms between 0 and 1 and ratios
Hi Juan Suppose you have to divide two very small numbers x, y. And assume that 0<x<<0 and also 0<y<<0. A mathematical corre...

6 years 前 | 1

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Calculation of a double sum
mySum=0; for i = -1:1 for j = -1:1 if i == 0 & j==0 w = -8; else ...

6 years 前 | 0

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Find all roots of non linear equation
Dear IlPadrino Your equation is not a "nonlinear" equation. If you try to search its roots fist at the interval [0, +inf) ...

6 years 前 | 0

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how to round the binary bit into 8 bit
Hi AR The best you have to do is to use fi objects. I recommend to have a look on matlab help site on this topic. By th...

6 years 前 | 0

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The difference between Gaussian Noise variance (user defined) and MATLAB generated variance (using built-in function var)
Dear Ann Maybe you have using too litle data. For example , if you execute command var(randn(1,1000)) many consecutive time...

6 years 前 | 0

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How can I get the data size/length from a signal in Simulink?
Hi Tim Try Display -> Sihnals & Ports -> Port Data Types <</matlabcentral/answers/uploaded_files/125607/port_data.jpg>>...

6 years 前 | 0