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understanding no perfect Zero-IF

Started by arlen 3 months ago4 replieslatest reply 3 months ago127 views
Hello, I hope someone could help me  with thisLet say that I have a signal centered at 30Mhz with a BW of 1Mhz, and I try to take  it to zero-IF but because my...

Adaptive filter and noise reduction

Started by sh_ee 3 months ago9 replieslatest reply 3 months ago112 views
What limitation would I have if my maximum adaptive filter tap order is 8? how can I correlate this to the type of noises the adaptive filter can denoise?Can...

DSPOnlineConference.com - need help testing it.

Started by stephaneb 3 months ago10 replieslatest reply 3 months ago98 views
Hello Friends,good news: the very first DSP Online Conference is materializing.  I have just published a beta version of the website and could use your help...

Sine Dipole formation using two hydrophones

Started by naumankalia 3 months ago15 replieslatest reply 3 months ago107 views
Hi all. I am trying to do MATLAB simulations for generation of SINE Dipole using two hydrophones spaced distance 'd' apart for signal coming from direction 'DOA'....

Why low number of subcarriers is needed for high path loss scenarios​ ?

Started by cogwsn 5 months ago9 replieslatest reply 3 months ago87 views
In one of the papers related to 5G numerology, I read this statement: "Low number of subcarriers is needed for high path loss scenarios because higher number of...

The size of an FIR filter for PDM-PCM conversion

Started by caduk84 3 months ago14 replieslatest reply 3 months ago144 views
I have been trying to understand how the conversion from PDM to PCM happens so that I could interface with a microphone. I have been doing some research online and...

Blackman Window FIR Filter Coefficients

Started by gaurav_lohiya 3 months ago8 replieslatest reply 3 months ago117 views
I am trying to design the Blackman Window based FIR Low Pass Filter (as described in http://www.dspguide.com/CH17.PDF) for the IQ signal having sampling rate of...

DSP chip ??

Started by phil123456 4 months ago27 replieslatest reply 3 months ago179 views
Hello,I struggle to find a hand solderable (soic ? msop ?) DSP programmable chipI tried a teensy and a raspberry pi to DSP some simple audio to make audio effects...

Problem with natural logarithmic function in fixed point notation

Started by chaitanya02 3 months ago17 replieslatest reply 3 months ago130 views
I am facing a problem with natural logarithmic function in fixed-point notation. Let's say x = 0.54, then ln(x) = -0.616186, a negative value => (1)Then in...

High Frequency Linear Array BeamForming

Started by naumankalia 3 months ago2 replieslatest reply 3 months ago100 views
Hi all I am doing some research on High Frequency Linear Array beam forming (for imaging sonar).For that purpose, a linear Rx Array of 100 channels have been constructed...

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