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Top 12 Matlab projects from matlabsolutions.com

Looking for inspiring MATLAB projects to sharpen your skills or impress in your next assignment? At MATLABSolutions.com , we’ve curated the top 12 MATLAB projects that showcase the power of MATLAB in signal processing, image analysis, machine learning, and more. These hands-on examples, complete with code and explanations, are perfect for beginners and advanced users alike. Dive in and explore the best MATLAB projects to elevate your expertise! Signal Smoothing with Moving Average Filter Master signal processing by smoothing noisy data using MATLAB’s movmean function. This project cleans a synthetic sine wave, teaching you noise reduction basics. Ideal for audio or sensor data analysis. Get the code at MATLABSolutions Projects Image Edge Detection Using Canny Filter Explore image processing with MATLAB’s Canny edge detection algorithm. This project highlights edges in any photo, perfect for computer vision applications. Download the script and try it on your own images! Bitcoin Price ...
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Removing spikey data from a sensor readout.

 I have a loop which reads out a sensor, once in a while the data is completely off, and gives a spike. I would like to remove those spikes.

 
The data given moves from -180 to 180 degrees, so when my measurement moves from -180 to 180 this should not be filtered (as this is normal).
 
However, if it moves from -180 to 90 then this counts as a spike.
 
It's not possible to do data processing after getting every readout, ideally there should be a filter of some sort in the loop itself.

ANSWER



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Do you have the Signal Processing Toolbox? If so, you could use the median filter. If you want to replace spikes with the median value around them, then compute the median and subtract it from the original and take the absolute value. Then replace those elements with a high value with the median.
 
 
medianSignal = medfilt1(signal, 7);
diffSignal = abs(signal - medianSignal);
spikes = diffSignal > 100; % Whatever...
% Replace
fixedSignal = signal; % Initialize
fixedSignal(spikes) = medianSignal(spikes);

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