Cyclostionary Spectral Analysis of Typical Satcom Signals using the FFT Accumulation Method,

Abstract

The suitability of cyclostationary spectral analysis for the detection and identification of typical Satcom signals is examined. An overview of the general equations for cyclostationary spectral analysis is presented. The cyclic spectrum is derived for some common Satcom modulation schemes. Cyclic spectrum estimation techniques are described with particular emphasis on the time smoothed approach. Key aspects of a computationally efficient algorithm for computing the cyclic spectrum estimates, called the 'Fast Fourier Transform (FFT) Accumulation Method' (FAM) are outlined. The FAM algorithm is implemented on a Digital Signal Processor/Personal Computer (DSP/PC) board containing a TMS32Oc51 processor chip and used to compute the cyclic spectrum for various phase shift keyed (PSK) and spread spectrum waveforms. The results are presented and discussed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA303107

Entities

People

  • Caroline Tom

Organizations

  • Defence Research and Development Canada

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Computers
  • Computing Devices
  • Detection
  • Equations
  • Fast Fourier Transforms
  • Identification
  • Mathematics
  • Modulation
  • Personal Computers
  • Phase Shift
  • Spectra
  • Spread Spectrum
  • Waveforms

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Radio communications and signal processing.