Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 5 months ago4 replieslatest reply 3 months ago281 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...

OFDM Burst Preamble.

Started by SenSen 2 hours ago15 views
Hi.While analyzing an OFDM signal sampled at 40Mhz, with the following Spectrum:fskorofdm1.png...

Frequency resolution

Started by sorh 1 day ago11 replieslatest reply 3 hours ago89 views
Hi guys, thanks for this website, its very useful and interestingI'm a student and still struggling to understand many of this complexities about frequency resolution...

PDM asynchronous sample rate conversion

Started by andrewstanfordjason 4 days ago9 replieslatest reply 22 hours ago69 views
Hello, I am looking to sync a 3072000Hz-ish PDM signal(clock) to an external 16kHz-ish PCM signal(clock). The PDM clock is running slightly faster then the PCM...

Matlab Optimization Toolbox-Constrained Optimization problem

Started by zarith 3 days ago5 replieslatest reply 3 days ago40 views
Hi, I have a problem on solving a constrained optimization problem which has 5 variables and 3 constraints. my code for the objective function is: function y = objective_function(x) y...

If H(ejw) is an ideal LPF, what is H(-ejw) ?

Started by htennek2k 4 days ago2 replieslatest reply 4 days ago85 views
Hello all.Just this simple question:Let's say that H(ejw) is the frequency response of an ideal LPF, then my question is what is H(-ejw) ?? My guess, is that since...

Carrier Frequency Offset Estimation under AWGN

Started by Billy_Tsekenis 7 days ago3 replieslatest reply 4 days ago87 views
Hello everyone :) I am trying to make a mimo-ofdm transmitting system with usrp's for my bachelor thesis. The system is almost complete at the simulations in matlab...

ZigBee and Multipath

Started by cogwsn 1 week ago3 replieslatest reply 7 days ago57 views
Hello, How does ZigBee copes up with multipath. I don't see any inherent support for channel estimation ? TIASumit 

MCUs with hardware ids.

Started by codestar9901 1 week ago7 replieslatest reply 1 week ago91 views
hello,           Can any one tell me if there are any mcu's that have hardware IDs by default. I understand that one can program these in e.g,

Can you hack a smartphone or fitness monitor with sound?

Started by Treefarmer 2 weeks ago3 replieslatest reply 1 week ago66 views
On a LinkedIn article I saw this claim in an article by John Markoff on March 14, 2017:"On Tuesday, a group...

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