Questions tagged [peak-detection]
The peak-detection tag has no usage guidance.
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How to demodulate a bit sequence that is offset-modulated with a complex exponential?
I have a discrete-time complex exponential
$a[n]*(\cos(\omega*n/N) + j \sin(\omega*n/N)) + b[n]$
where $a$ is constant and $b$: $\{0,1\}$
So it is basically an offset-modulated sequence of bits and I ...
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Calculating average peak-to-peak amplitude in a fft plot
I have the following code to calculate and plot fft. The data consists of voltage, current etc. sampled at 30 samples/sec.
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Peaks detection in delta lookback interval for real time algorithm
So I am developing a signal processing algorithm to classify in real time depending on how many peaks I have in my time series, in a delta. I implemented a circular buffer and accumulator to keep in ...
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Uniform density 2d peak detection of spectrogram
I am trying to recreate the algorithm used by Shazam to recognize music, as outlined in the paper An Industrial-Strength Audio Search Algorithm. The algorithm performs a specialized peak detection to ...
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True Peak detection II
As a followup to my True Peak detection question, I'm trying to implement a detection method by following this documentation using the Catmull-Rom interpolation method.
What I've done so far can be ...
- 927
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Jerk detection in accelerometer data
I want to detect jerk from accelerator data i.e. values beyond 1.57 m/s^2, but due to the high frequency nature of the sensor (400 values per second), it gives multiple jerks instead of one.
How can I ...
- 11
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551
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True Peak detection
To measure True Peak, MathWorks's Matlab Help Center page suggests:
The signal is over-sampled to at least 192 kHz.
The over-sampled signal, a, passes through a ...
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357
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How to estimate the average distance between peaks (maxima) of the magnitude of an OFDM signal?
Given an arbitrary configuration of carriers having bandwidths that belong to the 3GPP standard (5, 10, 15, 20, 25, 30, 35, 40, 50, ..., 100 MHz), is there a method/rule-of-thumb to estimate the ...
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Envelope of a series of pulsed signals [duplicate]
I need to record a series of pulse waves for an experiment. The recording is done via Software Defined Radio (GNU Radio). The pulse waves are modulated in such a way that the amplitudes of each single ...
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Removing very big peaks in a signal
I am analyzing a signal where I want to extract the peaks based on a threshold. My problem here is that there are some noise artifacts very high that are messing with my signal. I want to remove them ...
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How to automatically identify the start and stop times of a "ramp" seen in time series?
I am analyzing pressure data sampled at 1Hz. The times series exhibit "ramps" (a linear increase in pressure followed by a sudden drop) for which I would like to automatically detect the ...
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localization with TDOA under Doppler shift
In a localization system, I use the TDOA (Time Difference of arrival) method. The transmitter is moving at a speed v and its communication signal is received on 3 receivers at different times. For a ...
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3
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Easy way of calculating peak to peak voltage of an AC voltage wave
I want to measure the peak to peak voltage of an AC voltage signal. The voltage itself is around 220V and 60Hz. When measured through a sensor connected to an Arduino, it is scaled down to, let's say ...
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Beep Signal for Latency Calculation
I want to play audios on two mobiles with sync. But mobile phones are not in sync. I am trying to find two Mobile phones playing latency so I can pad latency on each phone so they can play together. ...
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Peak Sharping of multi-signal data
I have multi-signal data and as a processing step want to apply peak sharping of signal as shown in fig below.
is there any way I can achieve this in python ?
Literature :Paper 1(Peak sharping section ...
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