[EE] USB ADC Dongle? References: <CAOFvGD5xywbHneYnZvLStEvJwrf==SnQqH5DO2UL05o8ZTGv1A@mail.gmail.com> <68C48B7730F8B04F8230C4E33C4354DCB0DF8866@exchmbx01> alan.b.pearce@stfc.ac.uk wrote: >> > I do not know what is your background in electronics, but for me a >> > book about DSP by Lyons helped me a lot to understand the FFT (Fast >> > Fourier Transform) which is the foundation of SDR. >> > >> >> FFTs give me butterflies :-). >> >> It may well be enough to understand what the FFT DOES rather than >> >> HOW it does it in technical detail. >> >> So understanding what the Fourier Transform (FT - Analog foundation for >> FFT) does may well be enough >> >> AND a sliding correlation of a sine and cos wave across a data / signal sample >> can easily show how and why. >> The "aha moment" from a simple graph paper or simulation example may be >> enough to demystify the subject adequately to allow greater detail to be >> (more) happily accepted. >> >> It's quite likely that somebody here recalls a paper or demo that does just >> this. It's been 'a few decades' since I played with such 'in anger'. >> Lonnnng ago FFTs on a MC6800 happened. That's something like >> implementing them on a 16F84, but with external memory :-). > > Russell, > There was a discussion here within the last 3 months IIRC where a couple of > Analog Devices books were mentioned. I found the one I recommended gave me an > reasonable insight into the basics of DSP, sorry, can't find my archive of the > link at the moment. > > But a DSP book by Lyons was mentioned, so an amazon search reveals three > likely candidates, at varying cost ... > > https://www.amazon.co.uk/Understanding-Digital-Signal-Processing-Richard-ebook/dp/B004DI7JIQ/ref=pd_sim_351_1?_encoding=UTF8&psc=1&refRID=7JWZENGWF11ZB0766AKN The professor of my DSP course arranged for his students to obtain free copies _Digital Sigal Processing in VLSI_ (Higgins), which is published by Analog Devices. https://www.abebooks.com/9780132128872/Digital-Signal-Processing-Vlsi-Analog-013212887X/plp Thank you, -- Don Kuenz KB7RPU Genius is nothing but a greater aptitude for patience. - de Buffon
2017-07-17 21:09:58 UTC
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