Windshear measurement system
US4853861A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Sep 1, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention comprises a system for detecting windshear and associated downdraft effects when they are encountered in flight by an aircraft. The system includes an input unit (12), a first processing unit (14), a second processing unit (16), an output unit (18), and a pilot warning device (20). The input unit receives aircraft performance data from the instruments and/or flight systems on the aircraft and preconditions this data to produce a set of signals corresponding to various aerodynamic and inertial input parameters. The first processing unit differences signals representing the aerodynamically derived and inertially derived accelerations of the aircraft in order to generate windshear signals. These windshear signals are then corrected for pitch rate induced coriolis acceleration effects. The corrected signals are used to form a signals representing longitudinal windshear along the horizontal heading axis of the aircraft and the change in aircraft climb gradient due to longitudinal windshear. The second processing unit difference aerodynamically derived and inertially derived flight path signals to generate a windshear type change in climb gradient signal correspondi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.