On-board processor for direct distribution of change detection data products
Yunling Lou - Jet Propulsion Laboratory, Scott Hensley - Jet Propulsion Laboratory, Charles Le - Jet Propulsion Laboratory, Delwyn Moller - Jet Propulsion Laboratory
Tue, 27 April 2004, 10:20 AM - 12:00 PM
We are developing an on-board imaging radar data processor for repeat-pass change detection and hazards management. This is the enabling technology for NASA ESE to utilize imaging radars. This processor will enable the observation and use of surface deformation data over rapidly evolving natural hazards, both as an aid to scientific understanding and to provide timely data to agencies responsible for the management and mitigation of natural disasters. Many hazards occur over periods of hours to days, and need to be sampled quickly. The new technology has the potential to save many lives and millions of dollars by putting critical information in the hands of disaster management agencies in time to be of use.
The processor architecture integrates two key technologies by combining a Field Programmable Gate Array (FPGA) front-end with a reconfigurable computing back-end. Through this approach we are able to capitalize on the strengths of both technologies for the optimization of performance while maintaining flexibility where needed within the algorithmic implementation. A searchable on-board data archive will store the reference data sets needed for change detection processing. In this paper, we will present an overview of the change detection processing algorithm and the preliminary hardware architecture.
Ms. Yunling Lou - Jet Propulsion Laboratory
Yunling Lou received the B.S. degree in electrical engineering from University of Texas at Austin in 1983 and the M.S. degree in electrical engineering from University of Pennsylvania in 1985.
She is currently a Senior Engineer in the Radar Science and Engineering section of Jet Propulsion Laboratory, responsible for proposing and managing new radar technology developments and radar mission concepts. She is Principal Investigator for the Change Detection On-Board Processor as part of NASA Advanced Information System Technology program and System Engineer for the proposed UAVSAR for the NASA Instrument Incubator Program.