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Title: Multichannel heterodyning for wideband interferometry, correlation and signal processing

Abstract

A method is disclosed of signal processing a high bandwidth signal by coherently subdividing it into many narrow bandwidth channels which are individually processed at lower frequencies in a parallel manner. Autocorrelation and correlations can be performed using reference frequencies which may drift slowly with time, reducing cost of device. Coordinated adjustment of channel phases alters temporal and spectral behavior of net signal process more precisely than a channel used individually. This is a method of implementing precision long coherent delays, interferometers, and filters for high bandwidth optical or microwave signals using low bandwidth electronics. High bandwidth signals can be recorded, mathematically manipulated, and synthesized. 50 figs.

Inventors:
Issue Date:
Research Org.:
Univ. of California (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
678597
Patent Number(s):
5943132
Application Number:
PAN: 9-019,107
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 24 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; DATA PROCESSING; INTERFEROMETERS; CORRELATIONS; HETERODYNE RECEIVERS; VISIBLE RADIATION; MICROWAVE EQUIPMENT

Citation Formats

Erskine, D J. Multichannel heterodyning for wideband interferometry, correlation and signal processing. United States: N. p., 1999. Web.
Erskine, D J. Multichannel heterodyning for wideband interferometry, correlation and signal processing. United States.
Erskine, D J. Tue . "Multichannel heterodyning for wideband interferometry, correlation and signal processing". United States.
@article{osti_678597,
title = {Multichannel heterodyning for wideband interferometry, correlation and signal processing},
author = {Erskine, D J},
abstractNote = {A method is disclosed of signal processing a high bandwidth signal by coherently subdividing it into many narrow bandwidth channels which are individually processed at lower frequencies in a parallel manner. Autocorrelation and correlations can be performed using reference frequencies which may drift slowly with time, reducing cost of device. Coordinated adjustment of channel phases alters temporal and spectral behavior of net signal process more precisely than a channel used individually. This is a method of implementing precision long coherent delays, interferometers, and filters for high bandwidth optical or microwave signals using low bandwidth electronics. High bandwidth signals can be recorded, mathematically manipulated, and synthesized. 50 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}