24 views

Audio sample analysis - Comparing two audio samples, the original sample with a reproduction capture sample [duplicate]

Already asked in sound.stackexchange.com but it was suggested by one of the comments that it would be better suited to be asked here. Introduction I'm currently working on a project where I'm ...
3k views

Noise detection

I was wondering if someone could suggest a method to differenciate between two signals, on algorithmic scale for example a criterium to calculate, that shows how noisy a signal is, i have found a post ...
114 views

Compare the quality of IQ data from different Software Defined Radios (SDRs)

I want to know what methods are best to scientifically evaluate the quality of different Software Defined Radios (SDRs) that spit out IQ samples. For this question, I would like to set the boundary ...
91 views

Dependence of correlation peak height on GPS C/A signal's SNR, noise floor level (dBFS), correlation period length and ADC resolution

Assuming correlation at 2X the chip rate (2046 chips per period) and 500 Hz frequency search bins. There are probably additional variables here that I'm missing and I'm not sure how to quantify a ...
114 views

Determining SINAD from measured data

I would like to determine the SINAD of a distorted signal from a measurement and have troubles to get consistent data. The problem is (at least to my understanding) that I only have a very limited ...
83 views

How to calculate the SNR from the data collected by ADC?

I want to design a filter to deal with periodic signals according to the actual collected data. In practice, I would like to use the SNR as the criterion to judge the performance of the filter. ...
82 views

Estimating the SNR of respiration signal

I'm trying to evaluate the SNR of a respiration signal on Matlab environment, so the bandwidth considered is [0.04-1Hz]. The problem is that noise is overlapped on the signal, so I can't evaluate the ...
76 views

SNR estimation prior to demodulation?

What are the standard ways to measure SNR, particularly before demodulation/synchronization?
56 views

Incorrect signal-to-noise ratio estimation

Consider a "pure" sine wave (no visible noise): and let's calculate signal-to-noise ratio of it by (mean to standard deviation): $$SNR=\frac{\mu}{\sigma}$$ here's the code in ...
49 views

Is this a robust method for analysing correctness of a filtered signal? Is there a more robust method?

I have a recorded signal which contains several frequency components with stochastic phase and amplitude changes and want to extract the true signal with the other frequency components and noise ...