I am looking to sample a noisy pulse input signal from a sensor. The input signal will have a maximum frequency of 50kHz, so conforming to the Nyquist Rate requires atleast 100 kSam/sec. What exactly do you mean by the "signal will have a maximum frequency"? Do you mean that the "worst case fundame...

So a microcontroller using ethernet communication would serve the same purpose as the proposed ADC, only with an increased sample rate? Is that the right way to look at it, I'm slightly confused on the actions of the microcontroller that will be communicated.

I am looking to sample a noisy pulse input signal from a sensor. The input signal will have a maximum frequency of 50kHz, so conforming to the Nyquist Rate requires atleast 100 kSam/sec. The original idea was to use a MCP3001 ADC to convert the analog signal to a digital signal and be able to proces...

PeterO wrote:

thcondra42 wrote: we have no clue what the signal looks like.

Where is it coming from ? A physical sensor , microphone, ultrasonic, radio ....... ???

PeterO

A physical sensor

ghans wrote:Which programming languages do you know ?


ghans

C++ and use Matlab a lot. The others in my group have more experience and know more languages.

PeterO wrote:Just to give you an idea of the available power....

http://youtu.be/0IZxzm4R1bo

That is sampling complex data (I/Q signals in stereo) at 96kHz to produce a 96kHz wide spectrum and waterfall display.

PeterO

That's pretty awesome!

Any particular sampling frequency in mind? High enough to achieve a pretty high accuracy of the input signal's frequency. I'm working on a group design project, and we have no clue what the signal looks like. We are assuming there will be quite a bit of low frequency noise, including 60 Hz noise. M...

I am curious to know the power of these devices. I don't have much of a background with things like this. I want to input a noisy digital signal into a raspberry pi and perform a fast fourier transform. Would this be possible? If so, I would then like to create a function that runs before the fft to...