High Resolution Optical Power Spectrum Analyzer.

reportActive / Technical Report | Accession Number: ADA051845 | Open PDF

Abstract:

The High Resolution Optical Power Spectrum Analyzer HOPS was conceived as a better approach to a large volume optical power spectrum OPS scanning of imagery. This approach enables conventional OPS measurement coupled with simplified parallel optical film sampling, rather than film scanning. The HOPS is a coherent optical system that lends itself to many applications either proposed or demonstrated, such as pattern recognition, feature extraction and image assessment. Custom configuration of HOPS enables optimum use of off-the-shelf scanning photodiode arrays and adaption to specific film scanning and spectrum sampling requirements. This work demonstrates the basic metric equivalence between HOPS and conventional OPS. It also demonstrates the advantages of the HOPS configuration for OPS measurement. Several configurations of HOPS have been evaluated. A design using linear, self-scanned photodiode arrays with parallel optical trains is recommended. This report presents detailed analysis and measurements supporting HOPS as a highly practical approach to OPS scanning. Author

Author(s):
Balasubramanian, N. ; Considine, P. S.
Author Organization(s):
EIKONIX CORP BURLINGTON MA
Descriptive Note:
Final rept. 2 Feb-2 Dec 77,
Pagination:
0084

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
EC/2106801-FR, ETL-0127
Contract/Grant Number(s):
DAAK70-77-C-0046
Monitor Series:
0127
 Subject Terms
Joint Capability Areas:
JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.6_Concepts; JCA_1.2.5_Lessons Learned
Modernization Areas:
AI and Machine Learning
Communities of Interest:
Air Platforms
Descriptor(s):
*IMAGE PROCESSING, *OPTICAL PROCESSING, *SPECTRUM ANALYZERS, FOURIER TRANSFORMATION, PARALLEL PROCESSING, POWER SPECTRA, HIGH RESOLUTION, COHERENT OPTICAL RADIATION, PATTERN RECOGNITION, OPTICAL SCANNING, PHOTODIODES, MULTICHANNEL, PHOTOGRAPHIC IMAGES, RETICLES
Field(s)/Group(s):
Test Facilities, Equipment and Methods, Printing and Graphic Arts, Optics
Keyword(s):
Feature extraction
Report Date:
1978 Jan 31