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# Questions tagged [snr]

Signal-to-noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.

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### How to test for SNR for an ADC

I have a 24 bit ADC and I need to test for signal-to-noise ratio. I have a function generator which can generate different signals, so can I simply take 10*log10(power of signal/power of noise)? When ...
• 21
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### Best 'SNR-like' detection statistic for time series signal in the wavelet domain?

What is the best way to define a detection statistic for a time series event trigger generator, which computes the wavelet transform of some time series data? I want such quantity to be similar to a ...
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284 views

### AWGN Build vs Randn noise do not match

I am generating noise in two different cases with the same SNR once using AWGN command which is a built in command and second time using randn function with the correct scaling however I am getting ...
• 163
177 views

### Comparison of SNR achieved by different weighting schemes

I am reading a paper about High Dynamic Range (HDR) reconstruction. One of the core problems there is how to reconstruct pixel irradiance from multiple observations. Typically, weighted averaging is ...
• 121
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### How to calculate SNR before and after filtering for noise cancellation in an ecg signal in matlab?

I am working on noise cancellation in ecg signal and I want to calculate the Signal to noise ratio(SNR) before applying filter to the signal and after applying filter i.e., snr_before and snr_after. I ...
• 21
1 vote
251 views

### Print out the BER vs SNR function graph in python

First of all if this isnt the place to post these types of exercise please point out where do i post it and thank you in advance We are asked in this exercise to print out the SNR vs BER graphs for ...
1 vote
65 views

### Higher order M-FSK modem implementation

I am looking for the optimum modulation scheme to build a half-duplex modem minimizing the required SNR at the expense of bandwidth efficiency. The key system parameters are described below: Target ...
• 11
1 vote