Signal Processing Questions, Problems & Solutions : TransWikia.com ~ Page 17

How to detect start and finish of temperature control in temperature time series

I have a huge dataset containing temperature data inside a building. I want to extract the time that the building starts and stops controlling the temperature (approximately around the vertical...

Asked on 01/01/2021 by Regnav

2 answer

Phantom harmonics when using cosine windows why do they appear and how to avoid them?

Given an $L$ order cosine window, it is possible to show that the width of the main lobe is given by: $$omega_w = frac{2 pi L}{(2N+1)}$$ Where ...

Asked on 12/25/2020 by mickkk

1 answer

Sampling the Wave Equation for String Vibration

I am having a difficult time understanding the basic principles when sampling the function describing the vibration of a string. Mainly I am confused on given a sampling rate how...

Asked on 12/25/2020 by Leonard

1 answer

Simulate BER curves for OFDM with convolutional coding

I am tasked with generating performance curves for an OFDM transmitter/receiver, and I am unsure how to calculate the appropriate AWGN power, and where exactly the apply it. The...

Asked on 12/25/2020 by user2913869

1 answer

What is the order of the output of HoughCircles in OpenCV, when having several circles on a frame?

So I am trying to use stereo vision to calculate the depth of several red balls. With the function HoughCircles, I get an output at one frame from one of...

Asked on 12/23/2020 by Faiza Ali

0 answer

Meaning of lines on x- and y-axis of a centered FFT-spectrum of an image

I am currently learning about the Fourier transform of digital images, but I am wondering about one aspect.In most visualisations of fourier transforms of images, a horizontal and a...

Asked on 12/22/2020 by DoubleSteakHouse

1 answer

Different type of padding in image?

I want to implement a gradient operator on an image in Matlab. Should I have to pad the image before its implementation? How do I decide which padding to use...

Asked on 12/22/2020 by Ritika malik

1 answer

What papers or resources explain the conditions needed for filter stability in real-time tuning of parameters?

What papers or resources explain the conditions needed for filter stability in real-time tuning of parameters? That is, how can I know when a filter is such or how to...

Asked on 12/18/2020 by mavavilj

1 answer

Real-time mixing of two audio clips while only modifying the data of one

Problem I want to mix two audio sources in real-time: game audio and microphone audio. The audio is provided at 44 100 Hz in the form of vectors of 1024...

Asked on 12/13/2020 by K. Claesson

1 answer

When I double bit rate I do not see a difference in I_spectrum and Q_spectrum, but why?

I wanted to compare two different I-Q spectrum plots of a basic transmitter, one in which I doubled the bit rate. I expected a different result, that of possibly a...

Asked on 12/11/2020 by sawpythonnewbie

1 answer

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