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resolution of the phase information from the fft
Started by 4 months ago●11 replies●latest reply 4 months ago●247 viewsI understand that the frequency resolution for an N point fft sampled at Fs is Fs/N. However, I'm confused regarding the phase information. For instance, if I...
DSP Processing on ARM Cortex M (FREE BOOK)
Started by 4 months ago●4 replies●latest reply 4 months ago●260 viewsI received an email from ARM this morning, and the critical link (for me) was to a free download of "Digitial Signal Processing using ARM Cortex-M based Microcontrollers."...
Down-sample Spectrogram (Waterfall) by two different factors
Started by 4 months ago●1 reply●latest reply 4 months ago●127 viewsHiI want to down-sample a Spectrogram (Waterfall) image, time on 'y' axis and frequency on 'x' axis. What I would like is to do is down-sample the image when it...
Data overflow in fixed point DC removal filter, Richard Lyons Fig 13.65(b)
Started by 5 years ago●28 replies●latest reply 5 months ago●433 viewsI'm reading the 3rd edition of Richard Lyons' excellent book and am a bit confused by the DC-removal filter in Figure 13-65(b). If the input to the quantizer Q...
Trying to wrap my head around FFT and SDR...
Started by 6 months ago●8 replies●latest reply 5 months ago●236 viewsHi there! First-time poster here and very new to DSP and the like, so please excuse any ignorance and falsities. Pilots use a sequence of radio key-on's within...
Not really DSP, but I thought that some of the HAM guys on this forum may have seen this before.Have you every noticed when lighting strikes it causes the RF signal...
Question about Hogenauer's Paper
Started by 6 months ago●4 replies●latest reply 6 months ago●280 viewsBefore I have not read Hogenauer's paper, but when I read I am confused about the paper. Could somebody help me?The denominator of (A2)，Here |z| = 1, why the second...
Started by “Digital
signal processing is a veritable ocean. Take as many soundings in it as you
will, you will never know its depth.” ...
Sigma-delta DAC or delta-sigma DAC?
Started by 6 months ago●5 replies●latest reply 6 months ago●291 viewsWhich is more correct: sigma-delta DAC or delta-sigma DAC?If both are valid forms and there are differences, I would like to know that too.
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