#OFDM point to point specification

Started by LeonardDieguez 1 year ago13 replieslatest reply 1 year ago208 views
All,Specification location: FlexLinkPhy2023_v10.pdfOver the last several months I have gathered a few people and we have developed an OFDM specification for point...

How to calculate biquad cascade coefficient

Started by Robmar 1 year ago25 replieslatest reply 1 year ago371 views
My FFT code uses CMSIS DSP function arm_biquad_cascade_df1_f32() with coefficients set up for 12kHz, sample rate 48k, 60dB stopband, elliptic.I know the original...

How do I produce a covariance matrix from IQ samples?

Started by asterixogalues 2 years ago8 replieslatest reply 1 year ago470 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 1 year ago13 replieslatest reply 1 year ago249 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 1 year ago15 replieslatest reply 1 year ago204 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 1 year ago10 replieslatest reply 1 year ago288 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 1 year ago5 replieslatest reply 1 year ago189 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 1 year ago9 replieslatest reply 1 year ago336 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 1 year ago4 replieslatest reply 1 year ago216 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 1 year ago4 replieslatest reply 1 year ago229 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...

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