ECEN 4652/5002 - Communications Lab
Peter Mathys, Spring 2013, 2/20/13
Lab 6: Symbol Error Probability, Convolutional Codes, and Viterbi Algorithm
PDF version of this document:
lab06.pdf
- Measure symbol error rates Ps(E) versus SNR measured as Eb/No for PAM
signals.
- Determine in which cases Ps(E) is dependent on PAM pulse p(t) and
in which cases it is independent.
- Compare symbol error rates for binary and 4-ary PAM signaling.
- Compare symbol error rates for receiver with LPF and receiver with
matched filter.
- Learn about the basics of error control coding.
- Use convolutional encoding and Viterbi decoding to explore the
effect of error control coding on Ps(E).
--- See pdf file ---
--- See pdf file ---
Links to .wav files:
- pamsig601.wav (421 kB). Convolutionally
encoded (rate =1/2 encoder with G(D)=[1 1+D]) polar binary
(0 -> -A, 1 -> +A for some A) PAM signal with additive white Gaussian
noise, rectangular p(t), and FB=100 baud. Contains ASCII text (8 bits,
LSB first). Duration 13.44 sec.
- pamsig602.wav (409 kB). Convolutionally
encoded (rate =1/2 encoder with G(D)=[1+D^2 1+D+D^2]) polar binary
(0 -> -A, 1 -> +A for some A) PAM signal with additive white Gaussian
noise, rectangular p(t), and unknown baud rate FB. Contains ASCII text (8 bits,
LSB first). Duration 13.07 sec.
©2000-2013, P. Mathys.
Last revised: 02-12-13, PM.
