Title :
The effect of frequency domain measurement errors on the time domain signal
Author :
Warrick, Abbie L. ; Delaney, Pamela A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
The objective of this research is to study the effect that a measurement perturbation has on the signal in the transform domain. Each measured frequency component is modeled as the error-free frequency component scaled in amplitude and phase. The errors are independent, though identically distributed, from frequency to frequency. Analytical expressions for the first and second moments of each time-domain signal component have been derived and verified experimentally. Further, the results of this research have been applied to determine the expected antenna pattern when the current values are perturbed and the expected antenna pattern is shown to agree with known results
Keywords :
antenna arrays; antenna radiation patterns; array signal processing; frequency-domain analysis; measurement; measurement errors; time-domain analysis; amplitude; antenna pattern; error-free frequency component; first moments; frequency domain measurement errors; measured frequency component; measurement perturbation; phase; second moments; time domain signal; transform domain; Antenna arrays; Equations; Frequency domain analysis; Frequency measurement; Independent component analysis; Measurement errors; Phase measurement; Random variables; Signal analysis; Time domain analysis;
Conference_Titel :
Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-4120-7
DOI :
10.1109/ACSSC.1993.342406
