Spread Spectrum Modulation Using Time Varying Linear Filtering

Abstract

A method for transmitting information by radio over a wide bandwidth comprises the steps of: inputting a data signal into a time varying filter modulator; spreading the data signal in time and in frequency to produce a wideband signal; modulating the wideband signal onto an RF carrier to provide an RF output signal; and transmitting the RF output signal. The step of spreading includes performing a series of linear transformations to the data signal.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 05, 1998
Accession Number
ADD019141

Entities

People

  • Howard L. Dyckman

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Analog Signals
  • Bandwidth
  • Converters
  • Databases
  • Demodulators
  • Filters
  • Filtration
  • Frequency Bands
  • Generators
  • Law
  • Modulation
  • Modulators
  • Oscillators
  • Radio Frequency
  • Radio Signals
  • Radio Transmission
  • Radio Waves

Fields of Study

  • Engineering

Readers

  • Computer Science.
  • Radio communications and signal processing.