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en Wikipedia: "Please read: A personal appeal from Wikipedia founder Jimmy Wales." [5 articles]

again Jimbo, i'd be more inclined to support the project monetarily if i wasn't banned for eternity. and i'd like (after 4 1/2 years) to get my name and reputation back that was wrongfully ...

PLL's NCO related question [4 articles]

Hi, Which one among the two is right? Let's say I am using an arctan phase detector. Let the loop filter output be phi_d[n] at time t=nT, where T is the sampling interval. phi_d[n] is fed to an NC...

Nice aliasing demonstration. [3 articles]

This vid may be interesting to some for many reasons, but one thing it does is demonstrate aliasing visually pretty well. The camera used must have had a pretty decent effective shutter speed. ...

Seeking contractor to design some FIR or IIR filters [23 articles]

Hi, We are seeking a contractor to provide the coefficients for a set of EQ filters with specific frequency responses, at given sample rates. The filters we need the coefficients for are the fre...

FFT: Could you help me to clarify some doubts? [13 articles]

Hello I should calculate a FFT of signal that have max 500Hz of frequency. I know that for avoid aliasing problem I must have a sample rate of Fmax*2, so I have fix it to: S...

Automatic gain control and acoustic echo cancellation [5 articles]

This is a general question about acoustic echo cancellation based on NLMS. If an AEC receives a speaker signal which has been processed by an automatic gain control algorithm, will that have any ...

Parameterized data flow modelling for DSP system [2 articles]

Hi, I'm taking my prelim in 3 weeks and one of the paper that I've been given was "Parameterized data flow modelling for DSP system" by bhattacharya. My background is in signal and thus I don't ha...

Calculating aliasing components at a particular sampling frequency [5 articles]

I'm not sure how to calculate aliasing components as I've only dealt with systems that are sampled above fs > = 2B. So if I want to make sure that I have aliasing but the components due to aliasin...

Goertzel Implementation Magnitude Check [9 articles]

Im using the Goertzel algorithm to look for the presence of two particular frequency sets in a given signal. One is a particular type of interference, and the other is useful data of a known wavelengt...

Question about damping in PLL [6 articles]

Hi, I am learning PLL from a web download PLLTutorialISSCC2004.pdf after I read two books on PLL. I do not understand the following statements from the web pdf: ........................... Le...