Paper Info
Title
Real-time estimates of differential signal phase for spaceborne systems using FPGAs
Abstract
The high cost and inaccessibility of spaceborne systems necessitates the adaptation of computing resources based on changes in environmental conditions. In this paper, a new, adaptive phase difference detection circuit that can be implemented in reconfigurable hardware is described. This circuit measures both phase changes of a single signal over time and phase drifts between two associated signals. This information can be used for anomaly detection for a variety of spaceborne applications, eliminating the need to transmit data for further terrestrial processing. We demonstrate the benefit of this adaptive circuit using a new state-of-the-art data acquisition system developed for the NASA Surface Water Ocean Topography (SWOT) project. Phase calculations with an error of less than 2% are determined using our adaptive approach.
Year
DOI
Venue
2011
10.1109/AHS.2011.5963925
AHS
Keywords
Field
DocType
adaptive phase difference detection circuit,reconfigurable hardware,differential signal phase,reconfigurable architectures,anomaly detection,adaptive circuit,data acquisition,remote sensing by radar,nasa surface water ocean topography project,spaceborne applications,spaceborne systems,phase detectors,fpga,oceanographic equipment,real-time estimates,phase estimation,field programmable gate arrays,spaceborne radar,data acquisition system,surface water,satellites,accuracy,phase change,field programmable gate array,real time
Spaceborne radar,Anomaly detection,Satellite,Computer science,SWOT analysis,Data acquisition,Field-programmable gate array,Real-time computing,Ocean surface topography,Reconfigurable computing
Conference
ISBN
Citations 
PageRank 
978-1-4577-0597-7
0
0.34
References 
Authors
1
5
Name
Order
Citations
PageRank
Vishwas Vijayendra100.34
Paul Siqueira212829.52
Harikrishnan Chandrikakutty3111.26
Akilesh Krishnamurthy400.34
Russell Tessier588893.99