Selecting number of FFT points for Overlap add with spectral modifications.

Started by Mil1o 3 months ago2 replieslatest reply 3 months ago153 views
Typically tutorials and articles explaining OLA (like the one on the website with the simple use case...

Extend FFT spectrum question

Started by samecues 3 months ago6 replieslatest reply 3 months ago143 views
Hi all!I have some strange question here. Imagine that I have this WOLA scenario:Signal -> SineWindow -> FFT -> Process -> IFFT -> SineWindow and...

Realisation the Decoder of the convolutional code

Started by Fhr89 3 months ago3 replieslatest reply 3 months ago106 views
I am testing the realisation of a decoder for convolutional code with constraint length K = 7 and code rate = 1/2.As my test environment, transmitter and receiver,...

CMSIS coefficients for arm_biquad_cascade_df1_init_q15()

Started by erlend 3 months ago3 replieslatest reply 3 months ago97 views
Hi. I am having trouble creating filter coefficients for use with the cmsis dsp functions arm_biquad_cascade_df1_init_q15() / arm_biquad_cascade_df1_fast_q15I...

Multiframe FFT using single larger FFT

Started by kgrze 3 months ago4 replieslatest reply 3 months ago150 views
Hello,I have an algorithm that slices wav file into blocks (frames) of size 64 and does 64 point FFT on them. Recently I was give a hardware acceleration library...

Lattice wave digital filters: first oder symmertic two-port adaptors and their transfer function

Started by hirnprinz 3 months ago7 replieslatest reply 3 months ago103 views
The paper  "Explicit formulas for lattice wave digital filters" by L. Gaszsi, states that LWDF are represented by two parallel branches which are realized through...

One of my favorite mathematics jokes

Started by Rick Lyons 3 months ago6 replieslatest reply 3 months ago272 views
Two captains of industry, Arthur and George, were in a restaurant discussing the state of educational standards, particularly in the field of mathematics. Arthur...

Do we have to insert the DC null in OFDM when using RF direct sampling ADC architecture?

Started by amitjonak 2 years ago17 replieslatest reply 4 months ago254 views
Generally, DC Nulls are added in OFDM because zero-IF receivers don't pass the DC component. But what if I use an RF direct sampling architecture? Will there be...

Digital Emulation of Tube Amps

Started by nanmoniz 4 months ago2 replieslatest reply 4 months ago164 views
Hi guys, I'm doing some research work on emulating tube amps digitally and I'd appreciate any help you might be able to give me. I was looking into the Wiener-Hammerstein...

Very efficient (or parallel) Eigen solution for complex symmetric Matrix

Started by dgshaw6 4 months ago10 replieslatest reply 4 months ago120 views
I have a matrix that is complex but truly symmetric (not conjugate symmetric).I'm trying to find a reference that will help me build an extremely efficient implementation...

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