### Philip Martel (@pomartel)

Former Chief Engineer at SenTech Inc. designing acoustic and seismic systems.

## Re: New Embedded Online Conference website, need your help testing it.

When I sighed up for the conference, I filled out the form down until the checkbox where I would agree to the privacy policy.  I clicked on the link to check out...

## Re: How to use compression to change bit depth of a video signal?

Please clarify for me:The output of your micro-bolometer system is 14-bit raw data.  Your ISP needs 12-bit data, but you can use non-linear data.  You spoke of...

## Re: How to use compression to change bit depth of a video signal?

One think you didn't state is what sort of input your ISP expects.  If it is expecting raw monochrome video, then the simplest approach would be to just drop the...

## Re: how would I model my data?

In this case calling your data "f(t) = 1 for some particular values of t" may be leading you astray.  Consider it to be t(n) for n = 0, 1, 2,... That is what you...

Good one!

## Re: Help on Noise Correlation Matrix

From https://www.mathworks.com/help/matlab/ref/rand.htm X = rand returns a single uniformly distributed random number in the interval (0,1).exampleX = rand(n) returns...

## Re: Help on Noise Correlation Matrix

I believe rand(1,N) produces an 1 by N matrix of random numbers where each is uniformly distributed between 0 and 1.  Why should the correlation of two non-zero...

## Re: choose the antialiasing filter

Reviewing the app note for the XADC, https://www.xilinx.com/support/documentation/appli...they are assuming that the input to the XADC is an RC circuit with the...

## Re: Why am I getting the same frequency response plots when one has aliasing and the other does not?

Aliasing occurs when there is a frequency component higher than Fs/2.  Why are you surprised that you get aliasing?

## Re: Phase and Gain alignment

We were interested in tracking vehicles.  The signals had frequency peaks that varied with the type of vehicle, speed. and so on.  In general the peaks were well...

## Re: Phase and Gain alignment

Just calibrating the amplifiers won't be enough.  The sensors will need to be calibrated also.  I used to work with DOA of acoustic signals.  We calibrated the...

## Re: Completely OT: Your Favorite 'Relatively Unknown' Music

I'm not heavily into music, but I have a few singers and songs that I enjoy.Sethares' "Table 4.1: Properties of the Fourier Transform"  http://sethares.engr.wisc.edu/mp3s/fourier.htmlJulia...

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