Questions tagged [signal-analysis]
The processing of signals for the purpose of extracting a parameter or property embedded in a signal. Signal goes in and far fewer numbers come out.
2,356 questions
1 vote
0 answers
24 views
Accurate Function for calculating PSD-chatter index?
I was working on my research and I was adapting the Power Spectral Density Chatter Index from paper "In-Process Chatter Detection Using Signal Analysis in Frequency and Time-Frequency Domain"...
- 21
0 votes
1 answer
51 views
Is any information lost when computing an IFFT on a single sided spectrum vs the double sided spectrum?
I've known for a while that it is important to use a double sided spectrum when performing an IFFT in order to ensure the recovered time domain signal is purely real. However I've also seen that using ...
- 35
2 votes
1 answer
46 views
Flow errors on a binary periodic signal
Imagine you receive a binary periodic signal of unknown pattern (and unknown length) but your observations are distorted by flow errors: random duplicates (repeat a value before the next value) and ...
1 vote
0 answers
44 views
Measure distortion on individual symbol basis to capture short and intermittent event?
I had an intermittent problem happening only a couple times per day or so that showed up in the baseband system as a checksum error. It was due to some problem with the analog RF hardware that we ...
- 71
0 votes
1 answer
41 views
Does Stereo mode use the bandwidth more effectively than Dual Channel mode in SBC codec?
If an earbuds can accept a maximum of 1 Mbps bandwidth connection for audio, can Stereo mode (not Joint Stereo) use the bandwidth more effectively and produce higher audio quality than Dual Channel ...
- 101
4 votes
3 answers
1k views
I am confused with non-causal signal processing methods. Do they make sense?
Most time-frequency domain methods used to analyze how signals behave in systems — such as Fourier or Hilbert transforms — are inherently non-causal. But this approach seems conceptually inconsistent ...
- 41
1 vote
1 answer
74 views
Is my Bode plot right?
I have a current signal and the corresponding temperature signal in .mat format. The current is input and temperature is output.I am trying to get the Bode plot of it so that I can design a low-pass ...
- 11
1 vote
0 answers
38 views
Unexpected pitch drops after note release (TarsosDSP/FFT_YIN): algorithm limitation or misuse?
Intro: I'm building a real-time pitch visualizer app for Android using TarsosDSP. The app uses the FFT_YIN algorithm to detect fundamental frequency and maps it in real-time to a vertical piano-roll-...
