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ABSTRACT: This paper describes recent work using data communications links to integrate ground-based remote sensing and in-situ aircraft measurements during a number of atmospheric research experiments conducted by the Meteorological Service of Canada (MSC) in collaboration with the National Research Council (NRC) using its Convair 580 aircraft. These systems have been deployed to provide real-time or near real-time information between aircraft and ground-based sensors and information sources to help coordinate and integrate measurements as well as to provide decision-making information to optimize aircraft and ground-based sensor deployment. These include the use of a wide-area satellite telephone and line-of-sight VHP/UHF data-links for both general-purpose and specialized applications. Both technologies provide a data communications capability with various pros and cons, which can be exploited as required for different applications. This approach can be used in real-time to coordinate and position remote sensing instruments, which is invaluable for inter-comparisons between aircraft in-situ and ground-based remote sensing measurements particularly for radar observations.
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International; 08/2003
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ABSTRACT: The NRC Institute for Aerospace Research and the Meteorological
Service of Canada have collaborated for a number of years in making
atmospheric measurements using the NRC Convair 580 aircraft. This has
involved measurements of physical parameters including atmospheric
state, cloud particle microphysics and solar radiation. In recent years
an IR lidar system with dual beams has been installed. During 1999, a
cloud-profiling radar (CPR), operating at a wavelength of 8.6 mm, was
installed to make additional remote measurements. This millimetre-wave
radar system provides a unique capability when used in concert with
other sensors such as the lidar and A-Band spectrometer. During December
1999 and January/February 2000, the radar was used for the first time in
the Alliance Icing Research Study (AIRS). The primary focus of the study
was to measure atmospheric conditions leading to aircraft icing, using
both in-situ as well as remote measurements from the aircraft and the
ground. The purpose of this paper is to describe the radar and lidar and
other related aircraft sensors, and to show some preliminary results
from the AIRS experiment. The motivation for using a cloud radar on the
aircraft was to make measurements of radar reflectivity (and eventually
Doppler spectra) at high sensitivity and spatial resolution
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International; 02/2000
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ABSTRACT: This paper focuses on work in the delivery of weather information
to a mobile platform using satellite communications. A weather satellite
imaging system for a meteorological research aircraft is described,
which receives 4 km/pixel resolution imagery, transmitted by
polar-orbiting weather satellites at 137 MHz. The system uses a personal
computer with receiver and decoder boards and imaging software as well
as a novel low-profile “electrically small” (16 inches
square) patch antenna for the aircraft. The system could also be used in
the marine environment to receive weather information not readily
available in remote areas by other means. Reception of higher resolution
(1< km/pixel) imagery available from a variety of geostationary and
polar orbiting satellites in-flight during field experiments is a
current research objective. Investigation of the retransmission of
images from a ground receiving station or the Internet using satellite
communications facilities is currently in progress
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on; 09/1997
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ABSTRACT: An experimental voice command and integrated navigation system is
described. The implementation is in a Convair 580 research aircraft. The
system uses an interactive cockpit display to provide waypoint and
routing management, fuel information, aircraft positioning, and
navigation information and flight planning functions. For in situ
measurement of physical phenomena, steering information is provided on
cockpit course deviation indicators from flight guidance software. These
functions are integrated together with a Macrospeak voice recognizer, so
that voice commands can be used to control the system from the cockpit.
The design of the system is discussed, considering the specialized role
of the aircraft, including the various design tradeoffs made. The system
was used operationally in its present form during recent field
experiments including a magnetic survey over the Arctic Ocean
Digital Avionics Systems Conference, 1992. Proceedings., IEEE/AIAA 11th; 11/1992
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ABSTRACT: An experimental Kalman filter integrated navigation and position
determination system is presented. The system operates on a distributed
computer installed in a Convair 580 aircraft, for use in scientific
research in the areas of geophysics, oceanography, and advanced
navigation. Representative results which show the operation of the
prototype during tests of some of its failure modes are presented
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on; 06/1991
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