Re: [Discuss-gnuradio] SNR of ADC

[Marcus Müller]

There's no ADC involved! This is DSP! I can't really pinpoint it, but you have some misconception about what GNU Radio is. It's software. An ADC is a piece of hardware.

That's simply the floating point quantization error, numerical stability of the FFT, the absolute value and the averaging operation, as well as the effect of finite observation.

Best regards,

Marcus

On 02/28/2017 02:53 PM, Sagnik Basu wrote:

Hi.

I just have a thought - when we use a signal source block to generate a sine wave and use the FFT block to visualize the power spectrum, then the noise floor we see at the FFT window - is it the quantization error of the ADC within the PC running GNURadio?

Regards,

Sagnik Basu

B. Tech | 2013-2017
Dept. of Electronics and Communication
NIT Rourkela
M: 8337942928

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