Filtering a sine wave with ALE

Started by Artur1988 6 months ago5 replieslatest reply 6 months ago111 views
Hello all,I'm trying to recover a sine wave which is embedded in periodic FM noise (span: 100MHz; cycle: 10 MHz) by means of an adaptive line enhancer (ALE). The...

Suggested Midterm for a class in Error Correcting Codes

Started by Tim Wescott 7 months ago6 replieslatest reply 6 months ago87 views
I'll never teach the class, so I need to mention it here:Take "hello world!", encode it into Baudot-Murray code (so, 60 bits out).Run it through a suitable rate...

Do we use a Matched filter in an OFDM system for pulse shaping?

Started by amitjonak 7 months ago4 replieslatest reply 6 months ago109 views
Hello!Just like we can use a SRRC filter for pulse shaping BPSK symbols, why is it that we cannot use a SRRC filter for pulse shaping a BPSK modulated OFDM symbol?...

Who discovered the math of the digital polar discriminator?

Started by Gsparky2004 6 months ago25 replieslatest reply 6 months ago113 views
Good morning, everyone! I've been researching the history of digital demodulation, and Rick Lyons passed this thesis paper written by James Shima on to me. In it,...

Undersampling FM radio frequencies

Started by furkankalayci 6 months ago10 replieslatest reply 6 months ago127 views
Hi all,I am making a project about FPGA based software defined radio. I need to sample FM signal(88-108Mhz) to the baseband. I am using DE0 nano FPGA board and it...

Why does the Marginal Hilbert Spectrum of an anharmonic oscillator have two peaks?

Started by MagnusWDHH 6 months ago1 replylatest reply 6 months ago81 views
I've been looking at the marginal Hilbert Spectra of both the simple harmonic oscillator and an anharmonic Morse oscillator. I have found that while the SHO has...

Random carrier pwm on DSP

Started by steven02 6 months ago64 views
Hello,I have been implementing the field oriented control of three phase induction motor. This task can be divided into two main subtasks:a) sampling stator phase...

How do we know the receiver delay in an OFDM transceiver system?

Started by amitjonak 6 months ago4 replieslatest reply 6 months ago61 views
Hello everyone!I was simulating a simple OFDM transceiver system without a channel (just the transmitter and the receiver directly connected). I saw that if I use...

New quiz question by Rick Lyons

Started by stephaneb 6 months ago4 replieslatest reply 6 months ago169 views
Check out this new quiz question, submitted by none other than @Rick Lyons: far, 0/5!

NLMS code (simple question)

Started by Artur1988 6 months ago7 replieslatest reply 6 months ago92 views
Hi all,I'm implementing a NLMS filtering code and I'd like to confirm if I'm doing the right thing. I'm evaluating the basic iterative equations (boldface for...

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