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Dealing with aliased sinc function when computing spectra

Started by Crandles 11 months ago11 replieslatest reply 11 months ago164 views
Hi,I currently working on plotting some different spectra of Hamming windows and began exploring their Fourier Transform more. It involves the Aliased Sinc Function...
Radar Transmitter Measurement Setup:Waveform Generatorr + IQ Transmitter + Attenuator + Real Downconversion mixer + Oscilloscope + Post Processing (Hilbert Transform)With...

I/Q samples with Matlab

Started by nov 11 months ago1 replylatest reply 11 months ago118 views
I collected Iridium (satcom) I/Q samples (5120 x 100000 complex double) and I would like to plot the range-Doppler response map by using the matlab tool (https://www.mathworks.com/help/phased/ref/phased.rangedopplerscope-system-object.html)scope...

How to evaluate a Multiple Moving Sources Localization technique by the graphical results?

Started by asterixogalues 11 months ago5 replieslatest reply 11 months ago87 views
Fellow colleagues, I'm currently working on Multiple Moving Sound Sources Localization. However, I'm also having some issues choosing the best "metric" in order...

Fit IIR filter to a transfert function without knowing the analytical function

Started by TanguyClt 11 months ago3 replieslatest reply 11 months ago136 views
Hello, I try to play with a equal-loudness-curve compensation. Using the Fletcher & Munson curves I end up with the bass boost curves for each level that I...

Proving Time Invariance of a system

Started by kiranand 11 months ago6 replieslatest reply 11 months ago246 views
I did come across some useful posts here about how to go about proving time invariance of a system but I had this question.  Given something like this for instance...

Nyquist frequency & odd even FFT

Started by kaz 12 months ago17 replieslatest reply 12 months ago473 views
Hi All,I came to realise something odd about Nyquist frequency (a bit late though).When I generate it, it comes out only real. So I expected it to mirror around...

RF Sampling using a 3 dB hybrid to generate I & Q

Started by mrberman87 12 months ago4 replieslatest reply 12 months ago104 views
I know that a 3 dB hybrid can generate a 0 degree and 90 degree output ports.  Can I sample these two ports synchronized in time to generate my I & Q signals?...

Modulation in laser satellite communication

Started by Adilko 1 year ago7 replieslatest reply 12 months ago126 views
In small satellite communication technique we can use optical spectrum (optical (laser) communication system). The common and simplest modulation techniques used...

FYI, Article on optical computation

Started by Cedron 1 year ago1 replylatest reply 1 year ago93 views
Light computes any desired linear transform without a digital processor Kinda cool.

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