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DSP Discussion Groups & Forums


From here, you can access several active DSP related Discussion Groups & Forums that are meant to facilitate the exchange of information between DSP engineers and DSP researchers. You can subscribe to one or several discussion groups with confidence, as all groups are moderated and you can unsubscribe at any moment very easily.

Comp.DSP | Analog Devices DSPs | Audio Signal Processing | TMS320C28x | TMS320C3x | TMS320C54x | TMS320C55x | TMS320C6x | Code-Composer | Echo Cancellation | TMS320C24x | DSP & FPGA | Image Signal Processing | Matlab DSP | Freescale DSPs | Speech Recognition | Speech Coding | TI Sitara, OMAP, Stellaris, etc. |

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200kHz to 30MHz phase detection stratergies.   [7 Articles]
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Posted by in Comp.DSP on Dec 19 2014
hey guys, I am currently dealing with sinusoidal signals ranging between 200k and 30MHz and have to measure a phase difference of a few millidegrees between the two signals. I h... 200kHz to 30MHz phase detection stratergies.

Anti-Doppler   [4 Articles]
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Posted by Max in Comp.DSP on Dec 18 2014
The 'Doppler' thread got me wondering: How would you undo doppler effects to a signal without generating too many inaccuracies. The pitch shift is gradual, so there's no way to ... Anti-Doppler

Holomorphing: 2D-image processing as 1D complex DSP!
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Posted by in Comp.DSP on Dec 17 2014
One word, alone says it all "Holomorphic functions". Here, it's just simple polynomial "curve"-fitting of an image verses a sample of points. It's morphing without all the complica... Holomorphing: 2D-image processing as 1D complex DSP!

Repeated Spectra   [41 Articles]
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Posted by in Comp.DSP on Dec 16 2014
What does it mean that spectra of a sampled signal is repeated at integer multiples of sampling frequency? I am struggling to visualise it. ... Repeated Spectra

OT: Merry Christmas   [6 Articles]
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Posted by Rick Lyons in Comp.DSP on Dec 14 2014
Hi Guys, It's that time again. Here's wishin' all of you a very Merry Christmas and a Happy New Year! Of course, these good wishes are also directed at those of you wh... OT:  Merry Christmas

Doppler effect on Baud Rate   [44 Articles]
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Posted by dsp student in Comp.DSP on Dec 14 2014
I'm having a hard time wrapping my head around doppler and how it affects a digital communications signal's baud rate. The examples that I've seen explain that the center frequency... Doppler effect on Baud Rate

QPSK signal.   [5 Articles]
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Posted by AiDa in Comp.DSP on Dec 11 2014
Hi,guys. I research Doppler shift in QPSK signals.Methods to compensate Doppler shift I found during my research: to use a phase-locked loop (PLL) and linear decreasing frequency ... QPSK signal.

Question about Active Noise Cancellation   [12 Articles]
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Posted by in Comp.DSP on Dec 11 2014
Hello, I'm hoping the experienced folks in this newsgroup would be so kind so point me to some good tutorials (and books) on the subject of active noise cancellation. Being n... Question about Active Noise Cancellation

sinc5 filter response time   [6 Articles]
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Posted by jsmith in Comp.DSP on Dec 10 2014
Hi, What is a sinc5 filter response time? I have implemented it in Verilog using 5 integrator and 5 differentiator. However I don't know what is the period of outgoing codes... sinc5 filter response time

SOVA soft-output for the coded bits   [4 Articles]
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Posted by psidemus in Comp.DSP on Dec 9 2014
Hi All, I have a question regarding convolutional code SOVA soft output. I'm implementing a SOVA decoder as part of a Turbo-Equalization effort. The standard SOVA algorith... SOVA soft-output for the coded bits
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