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.
2,283
questions
1
vote
1
answer
19
views
How does a quantized signal represent all magnitudes between 0db and its noisefloor?
I am having trouble with some intuition with quantization, bit-depth, noise floor, dynamic range and signal/noise ratio. Let's say I have two signals, $s_1$ and $s_2$ that are 1hz sine waves, with ...
0
votes
0
answers
29
views
Sliding window with fading tail
I am new to signal processing. So far, I know how to analyze time series of a signal using a sliding window and I have used that approach before while analyzing a signal in frequency domain to improve ...
- 183
-1
votes
0
answers
31
views
Histogram Technique for Sine Wave
I am collecting a data set of 50k samples using a 14 bit 100 MS ADC. The frequency of the sine I collected is 6 kHz. (I collected and experimented for lower and higher frequencies. Especially 9.7 Mhz, ...
- 162
1
vote
1
answer
72
views
Artifacts introduced by Fourier Transform
I am new to signal processing. My background is Petroleum engineering, however I am concerned with analyzing acoustic data for some applications. I am using Fourier transform to transform signal from ...
- 183
0
votes
0
answers
30
views
Fixing distorted part of the signal for signal preprocessing?
i'm trying to replace the distorted part of my signal wich is a multiplicative season + linear trend kind of signal , i tryed replacing it with the mean or median value but it's not what i want really ...
0
votes
1
answer
33
views
Beat Frequency Test for ADC
I'm trying to do beat frequency testing to test the dynamic parameters of the ADC. I am doing what is written in TI's Application Note Dynamic Tests For A/D Converter Performance.
I add a frequency to ...
- 162
0
votes
1
answer
68
views
Difference Data Collected and Reference Sinus
I have a signal generator with 40 MHz bandwidth and 1.2 GSa/s features. I generate a 9.7 MHz sine on this generator. I sample using ADC demo board at 100 MHz. I generate a reference signal in MATLAB ...
- 162
0
votes
1
answer
37
views
CPM Modulation and Demodulation, How to determine the values for normalized bandwidth?
See table related to CPM Modulation which specifies $L$, $h$, $B_{norm}$ and sampling rate $f_s$. $B_{norm}$ and the sampling rate $f_s$ are directly related and I understand that relationship. What I ...
3
votes
1
answer
86
views
Difference Artifacts of Quantization and Spur
I saw a graph like the one in the picture and frankly I could not fully understand the difference between quantization artifact and spur. (ref. The Data Conversion Handbook Walt Kester (Editor) page ...
- 162
2
votes
1
answer
64
views
Removing rotational frequencies from a signal
I have a torque signal from an experimental adapter which measures based on strain gauges. Turns out that my signal presents very strong oscillations at the same frequency of rotation, which very like ...
- 21
0
votes
0
answers
74
views
How to get a reliable envelope of a signal with clipped peaks?
I'm trying to compute the power per minute in the time domain of some seismic signals. I deal with signals sampled at 5 kHz characterized by random amplitude peaks emerging from low background noise ...
2
votes
1
answer
460
views
Two Sinus Multiply and Add
I'm trying to understand the difference between the sums and products of two sine signals. I also wonder where and how these two situations are used in practice.
...
- 162
0
votes
1
answer
54
views
Signal processing of dominant components in exponential modes
I am doing theoretical computer science (TCS) research, where I encountered this problem of signal processing as a subroutine in my algorithm design.
The problem can be understood as given a threshold ...
- 103
0
votes
0
answers
45
views
Please solve this problem from Signals & Systems , u(t) is step signal?
Please solve this problem from Signals & Systems , u(t) is step signal
- 11
0
votes
2
answers
30
views
Measurement to compare the width of the autocorrelation peak
I would like to know if there is a metric to compare the autocorrelation peak width of one signal with the peak width of another signal. Additionally, what does it mean to have a broad autocorrelation ...
