SPECTRUM ANALYSIS OF VARIOUS MODULATION SCHEMES TO DETERMINE THE MOST DESIRABLE MODULATION METHOD FOR USE IN TRACKING OF HIGH-ALTITUDE SATELLITES

Abstract

The existence of the space age has put strenuous demands on the communication techniques used in obtaining high-accuracy range, range-rate, angle and angle-rate data to be used in tracking of high-altitude satellites and other space vehicles. The tremendous distances involved require that sophisticated modulation techniques be used to help obtain reliable signals as free from noise as possible. The important factors which must be considered in picking a modulation method are discussed and a spectrum analysis and a signal- to-noise ratio comparison of two of the more promising methods of modulation (amplitude modulation -single side band- and phase modulation) are made. Through the use of a detailed spectrum analysis of different modulation techniques one can see certain advantages and disadvantages of the techniques proposed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1962
Accession Number
AD0481217

Entities

People

  • Noel A. Grady Jr.

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Altitude
  • Amplitude Modulation
  • Artificial Satellites
  • Demodulation
  • Doppler Effect
  • High Altitude
  • Measurement
  • Modulation
  • Modulators
  • Phase Modulation
  • Power Spectra
  • Radio Signals
  • Radio Waves
  • Spacecraft
  • Spectrum Analysis
  • Vehicles

Fields of Study

  • Physics

Readers

  • Radar Systems Engineering.
  • Space Exploration and Orbital Mechanics.
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Space Objects