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How do I produce a covariance matrix from IQ samples?

Started by asterixogalues 1 year ago8 replieslatest reply 10 months ago427 views
Dear Colleagues,I'm working with BLE AoA Localization. My problem is: What to do exactly with IQ(in phase-quadrature signals) information from an antenna array in...

The Anatomy of a Finite Impulse Response

Started by Safwan 11 months ago13 replieslatest reply 10 months ago244 views
Hello All,As soon as my early adulthood passion for electrical engineering re-asserted itself, post-retirement, and after decades of teaching and researching physics,...

Electromagnetic waves question

Started by kaz 11 months ago15 replieslatest reply 10 months ago200 views
Hi All,This question suddenly popped up in my head.Why is that nobody talks about electromagnetic wave interaction as they share the same space?Yes they are different...

All Pole Transfer Functions

Started by Safwan 11 months ago10 replieslatest reply 10 months ago243 views
Hello All,  I think I developed a method for obtaining IIR  low-pass filters. It relies on all-pole z-domain transfer functions. The design is directly made...

Matlab support for "Frequency-Response Masking" filter design technique

Started by cangiane 11 months ago5 replieslatest reply 11 months ago174 views
Hi all,Does anyone know whether Matlab includes support for the "Frequency-Response Masking" (FRM) filter design technique first described in:Y. C. Lim, “Frequency-response...

AKM DSP Development?

Started by Ekene 12 months ago9 replieslatest reply 11 months ago303 views
Asahi Kasei Micro makes dsp ICs such as the AK7755EN. On the website https://www.akm.com/eu/en/products/audio-voice-dsp/lineup-audio-voice-processor/ak7755en/ there...

2-FSK eye diagram - optimal sampling sharp transitions

Started by six20star 12 months ago4 replieslatest reply 11 months ago192 views
Hi folks,I have ta analyse a signal transmitted in a burst mode in UHF and I have no apriori about it.The signal seams to be transmitted using a basic 2-FSK modulation.I...

How to avoid harmonic distortions in a DAC?

Started by weetabixharry 12 months ago4 replieslatest reply 11 months ago206 views
I have a DAC which is assumed to be nonlinear, such that it produces unwanted harmonic distortions at integer multiples of the input frequencies. Any other nonlinear...

C code simulation of DSP fixed-point operations with overflow and saturation

Started by jbrower 12 months ago9 replieslatest reply 11 months ago260 views
All-Does anyone have a link to old Texas Inst C code that simulated what their fixed-point DSPs did with overflow and saturation with arithmetic operations (add,...

Simulating multipath fading channel in Python

Started by roblkc3 12 months ago2 replieslatest reply 12 months ago383 views
Hello!I'm trying to figure out how to simulate a multipath fading channel (I'd like to have both a Rayleigh and a Rician channel, no Doppler to simplify things)...

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