Accession Number:

ADA220345

Title:

Simulation and Analysis of a MFQPSK Signal Transmitted through an Acoustic Medium

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1989-12-01

Pagination or Media Count:

171.0

Abstract:

A multi-frequency quadrature phase shift keyed MFQPSK signal has been developed at NPS to be used in computer-to-computer communications. This report discusses the simulation of a MFQPSK signal transmitted from a moving transmitter platform through a near vertical acoustic channel as seen by a moored receiver. The simulated received signal is tested against MFQPSK signal theory. The simulation was developed to be an experimental tool for testing various Doppler, synchronization, and coding algorithmstechniques for a MFQPSK communication signal. The degradation of output signal-to-noise ratio due to Doppler shifts caused by the moving transmitter is analyzed. An algorithm for estimating Doppler compressionexpansion in the received signal is evaluated. Keywords MFMMultifrequency Modulation Computer communications Data links Bandpass acoustic channels Theses.

Subject Categories:

  • Computer Programming and Software
  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE