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Questions tagged [simulink]

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0
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1answer
184 views

How to model state space for complex valued system correctly in SIMULINK (MATLAB)?

When trying to use the default state-space model block, if there is a complex number valued in the matrices, there will be an error To resolve that, firstly I need to look at pseudo reference model ...
0
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1answer
66 views

“Revolving” QPSK Constellation

I am trying to code a QPSK transmitter in VHDL but first I want to create one out of Simulink blocks and translate it into VHDL code. I am using an example project for the PlutoSDR as a guide. This ...
1
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1answer
117 views

DFT (FFT) of Non Uniformly Sampled Signal

I am trying to perform an FFT of a non-uniformly sample signal. My input comes from Simulink and PLECS which uses variable-time solver. So far, I have used ...
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0answers
61 views

Plot Background Noise

I am a total newbie in signal processing. I have been trying to plot on simulink a time/frequency domain noise in PLC (Powerline Communication) that matches a real-world research "...
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0answers
69 views

Detect pure sinewave in noisy signal by SIMULINK

To extract and detect two complex exponential signal in noise, I have problem to chose what kind of detection procedure that is also optimize. I think CFAR detector is only for 1D signals, but is that ...
0
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1answer
21 views

How do I simulate a purely real signal being received on multiple antennae in an array?

I have a signal created at baseband and then transmitted as $$\Re\{s_{bb}*e^{2\pi f_ct}\}$$ which is then received at a 5 element array for further processing. How do I interpret the real signal at ...
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0answers
8 views

variable factors in Simulimk

In my simulation of an equation in Simulink, I need to have variable factors the same as shown in following picture but Simulink doesn't accept that. how I can solve this problem?
-1
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1answer
426 views

Signal envelope

I have a relatively low-frequency signal and want to calculate the peak envelope of it in Simulink. I tried some of filters but the envelope is not well precise. can anyone help, how can I do it?
0
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1answer
115 views

Amplitude value after a Discrete-Time integration calculation?

I am using Matlab block Discrete-Time Integrator on Simulink and I would like to know in advance, what output of that block regarding to its amplitude and the current sampling frequency would be. ...
-1
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1answer
82 views

signal saturation [duplicate]

My signal is an actuator displacement signal. It is a sinusoidal signal with the max amplitude of 10cm. I want to clip amplitude at 7 cm in Simulink. But with saturation block, I will get flat ...
5
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2answers
2k views

Inverse system in Simulink

I have the following inverse system $$G(s)= s^2 + 2s + 3$$ How do I implement it in Simulink? Note that the transfer function is only accepted if and only if the order of the numerator is less than ...