Questions tagged [oscillator]
The oscillator tag has no summary.
49 questions
1 vote
1 answer
77 views
Resolution of NCO as a digital clock
I have a question regarding the resolution of Numerically Controlled Oscillator where the most significant bit is being used as the digital clock. I am not including the phase look-up table where the ...
- 11
0 votes
1 answer
64 views
In Costas receiver for DSBSC, How the DC voltage affects the phase of the voltage controlled oscillator, not its frequency?
Simon Haykin, Communication Systems, chapter 3, Costas Loop. The frequency of the local oscillator is assumed to be the same as the carrier frequency, the difference is only in the phase shift. The DC ...
- 133
2 votes
1 answer
220 views
pseudo-periodic time series with stochastic period and amplitude
Pardon the less-than-accurate terminology (signal processing is not my field), but I have a time series that shows a pretty clear oscillating pattern between minima and maxima, although it is ...
- 123
3 votes
1 answer
50 views
Specific de-trending method for damped oscillation?
Say I have a set signals consisting of damped harmonic oscillations, that I want to extract the characteristics of with the prony method. In the datasets I'm working with, it is possible for these ...
- 133
4 votes
3 answers
761 views
Emulating an analog Oscillator in DSP
I'm quite new to digital signal processing and currently learning the ropes. I'm fascinated by the concept of emulating analog circuits with DSP and I'm eager to understand how one might emulate an ...
- 153
0 votes
1 answer
83 views
Wavelet signal analysis approach for multi-mode, noisy signal
I have a signal that I am trying to analyze via Matlab's CWT functions. The signal has two distinct oscillating components and I would like to extract the decay factor from each of them. Here is what ...
-1 votes
1 answer
324 views
Phase Noise and Multi-carrier Frequency conversion
I have a oscillator with a phase noise mask that was represented in dBc at specific offsets from a carrier. Two options for a multicarrier signal going into a converter, apply the phase noise mask (...
- 109
1 vote
1 answer
1k views
Adding phase noise to a signal results in amplitude variation on a constellation - whats the mistake? *plots inside*
I am attempting to add phase noise to a modulated signal. I am doing this by taking a phase noise mask (single sided 0 Hz to 1 MHz), which shows dBc values away from central value or reference value. ...
- 109