A Honeywell three-axis inertial accelerometer was placed on board a Skyship 600B and acceleration data were recorded during the flight. Weather conditions during the flight were windy and turbulent, considered to be near the upper limits of this airship's operational envelope. Power spectra were computed from the acceleration data and showed favorable fall-off at high frequencies, but high power at low frequencies, as compared to a large, multi-engine aircraft used ...
XOMNI is Global Positioning System (GPS) data processing software designed to provide flexible manipulation of all parameters required for GPS solutions. XOMNI was developed based on the OMNI processing system of Dr. G.L. Mader of NOAA. The emphasis of this document is on the differences between XOMNI and OMNI, so this document should be used in conjunction with the OMNI User's Guide (Mader et al, 1991) available from NOAA. A ...
NRL has recently completed an experiment in airborne gravimetry off the Southeast coast of the Unites States. This report describes the techniques of airborne gravimetry employed and the methods used to process and analyze the collected data. Results from the analysis of the study are presented.
This report describes the results of a software design study for an airborne gravity measurement system. The software is intended for data acquisition and monitoring aboard a fixed-wing aircraft over oceanic areas, and for the postflight processing required to compute gravity along a flight track. Various requirements of the postflight processing system are discussed. A method to compute gravity from airborne measurements is outlined; as some quantities can be derived ...
This report describes the results of a hardware design study for an airborne gravity measurement system. The system is intended for use aboard a fixed wing aircraft for measurements over oceanic areas including ice caps. Hardware for measurement of total vertical acceleration including gravity, aircraft vertical acceleration, and precise positioning is discussed; and example equipment types are specified. A data acquisition system capable of handling all measurements sources is also ...
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