digital signal processing

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  1. H

    Issues with ZF and LMMSE Equalization in Multicarrier-FTN Receiver Implementation (BPSK, AWGN)

    I am working on implementing the attached paper in MATLAB. I have successfully implemented the transmitter, but I am facing challenges with the receiver. The main issue is that the Zero-Forcing (ZF) equalizer (i.e., the inverse of the HH matrix) does not provide an acceptable BER when τ<1...
  2. hsui

    I will need help about a TTL and signal double design

    Hello everyone I am trying to finish a circuit that about to reversal and boost the signal. The signal is a +3.3V as input and I wound the output between 9V to around 0V (bigger than 0V but smaller than 1V).As the blow fig show. That is the signal I want. I was looking at the MAX913 and their...
  3. J

    How do I manage voltage regulation for variable input

    Hey all! I'm trying to build an LED frequency counter. My input signal is an LED I'm using as a detector recieving from an output LED on my signal generator. I'm using square wave output to emulate pwm and my circuitry is going to process the signal to output a 5v logic output that can be read...
  4. S

    Quadrate interpolation in D/A conversion

    Can somebody please explain what exactly is quadrate interpolation in digital to analog conversation in digital signal processing?
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