Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 2 years ago10 replieslatest reply 10 months ago978 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

Digital Modulator Artefacts

Started by ees3dc 2 days ago29 replieslatest reply 1 hour ago87 views
Attached is an RF-DAC output of a modulated IQ signal.Signal is generated with an FPGA with a simple "F/4" I-Q modulator. The RF-DAC sample frequency is 4700 MHz....

Estimating SNR in the Frequency Domain

Started by ahmedshahein 3 days ago17 replieslatest reply 12 hours ago131 views
Dear All,I am trying to estimate the SNR from the signal spectrum. I have implemented the algorithm presented in "Under standing digital signal processing" by R....

Fixed point filter gain

Started by dsplearn 2 weeks ago16 replieslatest reply 14 hours ago46 views
How do I calculate the gain of fixed point decimation/interpolation filters for both FIR and CIC ?

Auto Correlation in DSP processor

Started by mathedomm 1 week ago5 replieslatest reply 3 days ago117 views
HI,I am performing frame by frame auto correlation of a 1D signal in labview. My frame size is 250K samples where each sample size is 16 bits. Labview takes about...

What is the frequency response of a resampling filter?

Started by weetabixharry 1 week ago12 replieslatest reply 6 days ago59 views
I am trying to characterise the combined frequency response of several (FIR) decimating filters connected together in series. I basically want to be able to tweak...

Slow fading channel & SNR

Started by Walidmq 1 week ago6 replieslatest reply 1 week ago100 views
Can anyone help with this question please?Slow-fading will mean that the signal will vary by more than 30dB on a timescale of a few seconds. How will you know what...

Phase Locked Loop Books in a time of DSP

Started by Tim Wescott 2 months ago9 replieslatest reply 2 weeks ago94 views
I was just explaining to my last remaining customer that when I need to do a phase locked loop in DSP, as likely as not I open my 28 year old book on phase locked...

The Spectral Complexity of a Single Musical Note

Started by Rick Lyons 1 month ago9 replieslatest reply 2 weeks ago73 views
On page 25 of the most recent January issue of the IEEE Signal Processing Magazine the following interesting spectral plot was presented. That plot is the spectral...

SC FDMA Channel Equalization

Started by warhol 1 month ago3 replieslatest reply 2 weeks ago30 views
Hi,I'm doing some research on channel eq. for SC-FDMA. Specifically, implementing a combination of CMA, DD and other "classic" techniques. However, I see that most...

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