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Forums Update, Tips and Tricks - Please Read!
Started by 9 years ago●19 replies●latest reply 3 months ago●3155 viewsIt'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...
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...
Instantaneous frequency direction of human speech
Started by 2 weeks ago●7 replies●latest reply 1 week ago●159 viewsFor SSB (Single Side Band) modulation I use Prosch’s [1] IIR
all-pass filters as per below:For a single Cosine tone, with a frequency from the range
above, the...
Packet Based Equalization in Multipath Environment
Started by 3 weeks ago●3 replies●latest reply 2 weeks ago●120 viewsImagine a simplified communication channel that consists of 2
multipath terms that are about the same amplitude modeled with an FIR
filter [1 0 0 0 0 0 0 0 0 0...
Help with Shannon-Nyquist Reconstruction Artifacts in Interactive DSP Tool
Started by 3 weeks ago●3 replies●latest reply 3 weeks ago●156 viewsHello 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/)....
IIR Filter Implementation in the Frequency Domain?
Started by 2 months ago●11 replies●latest reply 3 weeks ago●207 viewsSilly question: Is it possible to implement a IIR filter in the frequency domain just as you would a FIR filter? Or is the answer, "Well, you COULD, but that's a...
Started by I'm looking again at an FSK demodulator.Currently using an arctan followed by a derivative which is giving good results. fred harris always recommends:f ~= (dI...
Started by The error of manually computed inverse FFT increase along x-axis
Started by 1 month ago●9 replies●latest reply 4 weeks ago●129 views1Hello, I am manually compute the inverse FFT using the NumPy FFT components by the below codes, to compare the rebuild signal with the original signal (sin function)....
Real to IQ in software, image reject mixer.
Started by 1 month ago●3 replies●latest reply 1 month ago●201 viewsHi, I experimented with some code to do the conversion from real (analog signal) to IQ for digital processing in Octave to implement an SSB receiver.The reason is...
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