A High Data Rate Communications System Using Long Pulses.
Abstract
A communications system which decreases noise errors and increases information rate without sacrificing bandwidth is formed by a transmitter and a receiver designed to handle long pulse compression waveforms. An encoder connected to the transmitter converts a voice message into digitized voice words, encodes the digitized voice words into time shifted code sequences, and phase modulates the long pulse compression waveform, producing a M-ary coded signal at the output of the transmitter. The receiver is connected to a decoder which includes at least one convolver for computing the correlation of received digitally coded words with independently generated time shifted code sequences, and a controller for generating a plurality of data values according to the largest correlation values, and a transducer responsive to the data values. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1990
- Accession Number
- ADD014947
Entities
People
- G. J. Linde
- W. M. Waters
Organizations
- United States Department of the Navy