Mitre Corporation

About: Mitre Corporation is a company organization based out in Bedford, Massachusetts, United States. It is known for research contribution in the topics: Air traffic control & National Airspace System. The organization has 4884 authors who have published 6053 publications receiving 124808 citations. The organization is also known as: Mitre & MITRE.

Receiver autonomous integrity monitoring (RAIM) capability for sole-means GPS navigation in the oceanic phase of flight

Abstract: Receiver autonomous integrity monitoring (RAIM), a GPS integrity monitoring scheme that uses redundant ranging signals to detect a satellite malfunction that results in a large range error, involves two functions: detection of the presence of a malfunctioning satellite and identification of which satellite (or satellites) is malfunctioning. An analysis is presented of GPS RAIM capability for sole-means navigation in the oceanic phase of flight, where the position protection limit requirement for the integrity function is not as stringent as for nonprecision approaches, and yet both detection and identification function may be required if GPS is to be used as a sole-means system. For this purpose, a detection and identification algorithm is developed which takes advantage of the fact that for the oceanic phase of flight, a much larger position error is acceptable than for the nonprecision approach phase of flight. The performance of this algorithm and an algorithm proposed previously by others is estimated via simulation and compared. On the basis of the results, recommendations are made on how RAIM may be used if GPS is to be coupled with an inertial system to provide a sole-means capability in the oceanic phase of flight. >

Performance and fault modeling with VHDL

Abstract: Describes how VHDL can be used across the system design process, from specification to the development of maintenance strategies. The contributors provide advanced techniques, and detail how these can be adapted to improve the system development process, reducing time and cost.

System and method for detection of microbursts by measuring various weather condition parameters at both spaced time and location intervals

Abstract: The invention comprises a microburst detection and measurement system having a plurality of SENSTRANS units positioned at spaced intervals, each SENSTRANS unit monitoring humidity, wind speed, wind direction, barometric pressure, and temperature. The sensors transmit the observed weather conditions to a central data processing and display unit via RF, FM transmission. The data processing and display unit collects and assimilates the data to determine if the measured parameters indicate the likely presence of microburst or other weather hazards. If so, it issues a weather hazard warning both visually and audibly.