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 = {Tue Aug 24 00:00:00 EDT 1999},
month = {Tue Aug 24 00:00:00 EDT 1999}
}