A method for determining the non-linear time dependence of windowed data gathered from scattered signals

Author

Gray, J.E. ; Rice, T.R. ; Conte, J.E. ; Watson, Gregory

Author_Institution

US Naval Surface Warfare Center, Dahlgren, VA, USA

fYear

1992

Firstpage

525

Lastpage

528

Abstract

Moments associated with functions that are the Fourier transform or Fourier series of time-domain signals are studied in order to determine what happens to the frequency spread of a transmitted signal after it has been reflected from an object undergoing nonuniform motion. The example of a sinusoidal wave reflected from an object undergoing constant acceleration is considered. It appears that analytic expressions for moments of finite-time signals that are given by well-behaved sums are also applicable to this waveform

Keywords

Fourier transforms; frequency-domain analysis; signal processing; time-domain analysis; Fourier series; Fourier transform; constant acceleration; frequency spread; moments of finite-time signals; nonlinear time dependence; nonuniform motion; reflected signal; scattered signals; sinusoidal wave; time-domain signals; transmitted signal; windowed data; Acceleration; Broadcasting; Fourier series; Fourier transforms; Frequency domain analysis; Information analysis; Radar scattering; Signal analysis; Sonar; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Time-Frequency and Time-Scale Analysis, 1992., Proceedings of the IEEE-SP International Symposium

Conference_Location

Victoria, BC

Print_ISBN

0-7803-0805-0

Type

conf

DOI

10.1109/TFTSA.1992.274144

Filename

274144