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Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 9 years ago19 replieslatest reply 5 months ago3204 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...
I created a simple FMCW sweep using MATLAB in baseband, BW = 100MHz:sweepTime = 1e-3; % 1 ms sweep BW = 1e8; %100 MHz; fs = 2e8;% 200 MHz sample rate % FMCW waveform:...

Dither question, TPDF vs periodic oscillator

Started by PiterDeVries 3 days ago3 replieslatest reply 2 days ago126 views
Assuming my DAC is 1 million samples per second 12-bit, with the goal of increasing the effective number of bits beyond 12 bit at the expense of reduced sample...

Bandwidth of the Goertzel algorithm

Started by Cuencano 3 weeks ago18 replieslatest reply 2 weeks ago179 views
I needed to determine the 3 and 6 dB points of the Goertzel algorithm. While I found many posts here that addressed bandwidth indirectly, they didn’t specifically...

Efficient triaxial sampling of a single frequency signal

Started by hkortier 4 weeks ago11 replieslatest reply 3 weeks ago148 views
I have a single frequency (100kHz) magnetic wave (known power) signal measured by three, orthogonally sensitive, placed sensors (coils in x,y,z direction). The...

OFDM receiver IQ processing

Started by jekain314 2 months ago9 replieslatest reply 4 weeks ago203 views
The OFDM receiver front end operates on a real signal from the antenna. The receiver's IQMixer both downconverts the received signal to baseband and transforms the...

Carrier frequency offset (CFO) in OFDM with the real part of IFFT

Started by ziwukim 1 month ago10 replieslatest reply 1 month ago152 views
In the IEEE 1902.2 narrow-band OFDM PLC standard, the IFFT is performed but only the real parts are taken for the transmission while discarding the imaginary parts...

Help with Shannon-Nyquist Reconstruction Artifacts in Interactive DSP Tool

Started by Theau 2 months ago4 replieslatest reply 1 month ago179 views
Hello DSPrelated community,I'm developing an interactive web application for learning DSP concepts as part of a university project (project overview: https://thierrydutoit.github.io/iDSP/)....

A Query about "Improvements to the Sliding DFT Algorithm"

Started by etheory 5 months ago7 replieslatest reply 1 month ago243 views
Hi all! My first post here! Long time lurker first time poster. This one is kinda specifically directed at @RickLyons but happy for anyone to answer. I am reading: https://www.researchgate.net/publication/352874961......

Circular convolution

Started by RoelVugts 2 months ago10 replieslatest reply 2 months ago220 views
When performing an FFT, modifying the magnitude spectrum in some arbitrary way, and then applying an inverse FFT, how should I handle circular convolution? How can...

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