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Complex IF

Started by maxplus 1 year ago20 replieslatest reply 1 year ago175 views
HelloI am building up a RF transceiver using integrated up/down converter chip.This particular chip requires a complex Intermediate Frequency as inputs for up conversion...

Frequency offset estimation for the real signal OFDM

Started by Frank_os 1 year ago3 replieslatest reply 1 year ago103 views
I asked the question about to recover signal from the real part of IFFT OFDM system before,Recover signal from the real part of IFFT.thanks for the responses from...

How to convert SNR to Eb/N0 in Chirp Spread Spectrum communications

Started by AndreaGabe 1 year ago2 replieslatest reply 1 year ago242 views
I'm simulating a Binary Orthognal Chirp Keying communication system in Matlab, with AWGN channel.Basically I'm sending the bit 0  by transmitting a down-chirp C0[n] ...

Connecting a commercially available DSP to SigmaStudio?

Started by InnovationAudio 1 year ago10 replieslatest reply 1 year ago270 views
I'd like to add an upmixer software module to an existing commercially available DSP (Car Audio) with a Sharc chip. I see the Jtag header on the circuit board...

Can you find the illegal step?

Started by Rick Lyons 1 year ago10 replieslatest reply 1 year ago189 views
Can you find the illegal step in the following silly proof? Given: a=b$$ a^2=ab$$$$a^2-b^2 = ab-b^2$$$$(a+b)(a-b)=b(a-b)$$$$a+b = b$$$$b+b=b$$$$2b=b$$

Design FIR filters using DRHS-OLL algorithm

Started by jtp_1960 1 year ago1 replylatest reply 1 year ago125 views
Bumped to research paper Efficient FIR Filter Design Methodology Using Dynamic Regional Harmony Search Algorithm With Opposition And Local Learning (DRHS-OLL)...

Audio Signal Filter

Started by RogerG 1 year ago15 replieslatest reply 1 year ago307 views
I am after some help.A few years ago I built an analogue signal audio filter to provide high frequency, mid range and low frequency for my audio amp. This works...

Help with polynomial zeros

Started by napierm 1 year ago27 replieslatest reply 1 year ago156 views
I'm working on a problem where I need a *very* long FIR with many stop bands.  I've done several similar designs recently and remez() with the right prodding will give...

Sub-band processing

Started by pbholmen 1 year ago2 replieslatest reply 1 year ago154 views
HiI've been watching the lectures in the Coursera class Audio Signal Processing for Music Applications.https://www.coursera.org/learn/audio-signal-processing?I don't...

Overlap Save Implementation Issues

Started by MellanoxRoxx 1 year ago1 replylatest reply 1 year ago117 views
Hi, I'm currently trying to implement the Overlap Save / Scrap method for educational purposes using KFR and C++. However, I'm noticing that something is off when...

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