NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Onboard Data Processor for Change-Detection Radar ImagingA computer system denoted a change-detection onboard processor (CDOP) is being developed as a means of processing the digitized output of a synthetic-aperture radar (SAR) apparatus aboard an aircraft or spacecraft to generate images showing changes that have occurred in the terrain below between repeat passes of the aircraft or spacecraft over the terrain. When fully developed, the CDOP is intended to be capable of generating SAR images and/or SAR differential interferograms in nearly real time. The CDOP is expected to be especially useful for understanding some large-scale natural phenomena and/or mitigating natural hazards: For example, it could be used for near-real-time observation of surface changes caused by floods, landslides, forest fires, volcanic eruptions, earthquakes, glaciers, and sea ice movements. It could also be used to observe such longer-term surface changes as those associated with growth of vegetation (relevant to estimation of wildfire fuel loads). The CDOP is, essentially, an interferometric SAR processor designed to operate aboard a radar platform.
Document ID
20080048018
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other - NASA Tech Brief
Authors
Lou, Yunling
(California Inst. of Tech. Pasadena, CA, United States)
Muellerschoen, Ronald J.
(California Inst. of Tech. Pasadena, CA, United States)
Chien, Steve A.
(California Inst. of Tech. Pasadena, CA, United States)
Saatchi, Sasan S.
(California Inst. of Tech. Pasadena, CA, United States)
Clark, Duane
(Leeward Engineering Culver City, CA, United States)
Date Acquired
August 24, 2013
Publication Date
October 1, 2008
Publication Information
Publication: NASA Tech Briefs, October 2008
Subject Category
Communications And Radar
Report/Patent Number
NPO-45751
Report Number: NPO-45751
Distribution Limits
Public
Copyright
Public Use Permitted.
No Preview Available