DMCA
1 LDaC: A Wideband Loran Data Acquisition System
BibTeX
@MISC{Johnson_1ldac:,
author = {Dr. Gregory Johnson and Ruslan Shalaev and Michael Kuhn and Alion Science},
title = {1 LDaC: A Wideband Loran Data Acquisition System},
year = {}
}
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Abstract
Loran-C provides timing and positioning services which are suitable for GPS backup in the National Airspace System (NAS). To assess the system’s ability to provide the necessary accuracy, integrity, availability and continuity, a variety of analyses and measurement tasks are underway. These tests have produced airframe calibration and flight data files which are a portion of the information required to characterize in-flight airframe charging-discharging noise effects on Loran-C availability. Within the ongoing FAA evaluation program, the Loran Integrity and Accuracy Performance Panels identified the need for a rapid-response recording/analysis/distribution for Loran-C data, as various what-if questions are addressed. Specifically, efforts are currently being made to collect data in order to better characterize the noise in the Loran band. We anticipate that the future Loran-C program, in addition to the ongoing evaluation of Loran-C performance in the National Airspace System (NAS), will certainly include the development of an approval/certification path for proponent avionics. As a part of the knowledge base for this development, access to full-spectrum Loran-C + noise is required. We need to record and analyze wideband Loran-C signals, produce reports and databases, and make the results available to the project team for development of such documents as RTCA MOPS /
Keyphrases
wideband loran data acquisition system national airspace system various what-if question loran-c availability flight data file future loran-c program measurement task rapid-response recording analysis distribution positioning service system ability knowledge base loran-c data rtca mop project team accuracy performance panel proponent avionics loran integrity gps backup approval certification path full-spectrum loran-c noise ongoing evaluation in-flight airframe charging-discharging noise effect necessary accuracy airframe calibration ongoing faa evaluation program loran-c performance loran-c signal loran band
