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What is uncoded MIMO channel?
As I understand it, uncoded probably points to the source data that does have have any channel coding associated with it. An exa...

5 years ago | 0

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Concatenation of interpolation and decimation doesn't work
Decimation is the process of downsampling, followed by filtering. The MATLAB function, by default, filters the input sequence us...

5 years ago | 0

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cannot access national instruments hardware
A few troubleshooting tips are documented here.Try a few of the steps provided to see if it works out. You can also try to reins...

5 years ago | 0

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Why MATLAB on Macbook Pro behaves weird while working with BLE devices?
I have heard that these issues are known, and the concerned parties may be investigating further.

5 years ago | 0

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How can I get real-time waveforms and data from connected oscilloscope?
A good resource to start would be the overview page for the Instrument Control toolbox. There are a few code examples to get sta...

5 years ago | 0

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Fit Gaussian mixture model with weighted observations
The function fitgmdist fits a distribution to a given data set. This data set generally has points belonging to the same class t...

5 years ago | 0

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Using an Arduino IR camera to plot a heatmap
There are multiple ways to do this. If you are saving data in a text file and then want to load it into MATLAB, you can use fsca...

5 years ago | 0

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how implement FFT to ringtone/music
As Walter mentioned, you can use the fft function to carry out the Fast Fourier Transform operation using one the of the example...

5 years ago | 0

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无法下载第三方软件: Windows USB drivers for PlutoSDR 这是以下项所需要的: Communications Toolbox Support Package for Analog Devices ADALM-Pluto Radio
Try to reinstall support package keeping the following steps in mind: Go to Add On manager and uninstall the support package, ...

5 years ago | 0

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How can i transmit image with OFDM and Receive the same image with OFDM with Pluto ?
This example elaborates how to use Pluto SDR to transmit and receive images using 802.11a standard. This standard uses OFDM for ...

5 years ago | 0

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Load a structure in a mat file
A similar issue has been addressed here. The issue and limitation are documented and elaborated upon, and a workaround is also p...

5 years ago | 0

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Loss stops calculating with custom layer (weighted cross entropy function)
Whenever the loss value is either “NaN” or “Inf”, the value is not plotted on the curve. On similar lines, the accuracy is near ...

5 years ago | 0

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Classifying ECG into separate segments
As I understand it, each type of wave has a specific frequency characteristic. Based on this, bandpass filters can be designed t...

5 years ago | 0

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Time-frequency spectral coherence analysis
As has already been suggested by Daniel, the mscohere function can be used. If you are using a custom window, generate the vecto...

5 years ago | 0

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How do I plot a constant value over multiple different intervals ?
To plot an overlapping line onto the figure, an x-axis vector would need to be specified and provided to the “plot” function alo...

5 years ago | 0

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Help with echo effect to audio signal code?
The Audio Toolbox has an Echo object that could cater to your needs. Create the object using the following code: echoObject = a...

5 years ago | 0

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designAuditoryFilterBank - Error "Undefined function or variable"
The designAuditoryFilterBank function is available from the MATLAB R2019B release version. If you are using an older version, th...

5 years ago | 0

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Frequency spectrum of a sound signal
Using a test sound file of my own, I was able to generate the plots attached. The function “audioread” works if the suffix of th...

5 years ago | 0

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BER depends on TotalFrame count in QPSK Transmitter and Receiver example
The variability is due to timing synchronization and carrier frequency offset (CFO). Timing synchronization becomes much difficu...

5 years ago | 1

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Collection of all the signals by Phased.collector
Yes, the “collector” can be used for all the signals from angles by specifying the second input argument as shown as shown here....

5 years ago | 0

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Remove unwanted narrowband interference
Increasing the order of the Butterworth filter could help improve the response. Alternatively, the buttord function can be used ...

5 years ago | 0

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Plotting a matrix / Plotear una matriz
I am assuming you are trying to have multiple axes on a single figure window, where a few of the subplots will be used to plot m...

5 years ago | 1

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append cell array #2 to cell array #1 to get a final cell array of cells
The operations carried out by either: C = [A B]; C = horzcat(A,B); C = cat(2,A,B); Should work for your requirement. There i...

5 years ago | 0

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Normalize/scale in range
The code below can help perform matrix normalization where you have to specify the appropriate -1, 0 and 1 values in variables "...

5 years ago | 0

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How to set the FIR filter specifications?
You can use the Filter Designer app to get started on the Filter design. You can select the FIR filter option, specify order or ...

5 years ago | 0

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Matlab and USB2.0 Protocol data aquisition
To read data from a USB, you can use the serial port object to initialize communication between device and MATLAB, followed by u...

5 years ago | 0

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Help needed for Plotting Confusion Matrix as given in the sample image
I have brought this issue to the notice of our developers. They will investigate the matter further. For the time being, you co...

5 years ago | 0

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単相誘導機の特性曲線フィッティング
You can use the Curve Fitting app documentation to get started. Hope it helps!

5 years ago | 0

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how can i filter my signal if the fft looks like this?
For plotting the FFT output, the x-axis must be defined in a vector. Ideally this vector is defined as follows: x = (0: 1/nFFT ...

5 years ago | 0

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Answered
QPSK modulator and demodulator
To perform QPSK modulation and demodulation, you can use the “pskmod” and “pskdemod” functions by setting the order of modulatio...

5 years ago | 0