Should work but doesn't (and vice versa)

Started by woodpecker 10 months ago17 replieslatest reply 10 months ago216 views
Hi everyone,  Not exclusively DSP this one, but please bear with me.I expect that most of us (especially those of more advanced years such as myself) have dealt...

resolution of the phase information from the fft

Started by jrive87 10 months ago11 replieslatest reply 10 months ago534 views
I 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 dcomer 10 months ago4 replieslatest reply 10 months ago306 views
I 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 msousa 10 months ago1 replylatest reply 10 months ago155 views
HiI 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 swirhun 6 years ago28 replieslatest reply 11 months ago484 views
I'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 alexturner 12 months ago8 replieslatest reply 11 months ago281 views
Hi 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...

RF loss during lighting strike

Started by transient 11 months ago2 replieslatest reply 11 months ago147 views
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 fpgaplayer 12 months ago4 replieslatest reply 12 months ago326 views
Before 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...

Digital signal processing

Started by Rick Lyons 12 months ago4 replieslatest reply 12 months ago323 views
“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 jms_nh 1 year ago5 replieslatest reply 1 year ago469 views
Which 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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