Patent ID: 9234909
Filing Date: 2016-01-12
CPC Classification: B64C,G01P

Claim Text:
1. A method for determining an airspeed of an assisted aircraft, comprising the following steps: a) determining a position of said assisted aircraft; b) measuring a ground speed of said assisted aircraft; c) receiving a plurality of messages from a plurality of other aircraft, called assisting aircraft, each said message containing: a first item of information, indicating a position of a said assisting aircraft, and a second item of information, indicating a wind speed at said position; d) estimating a wind speed at the position of said assisted aircraft by interpolating the wind speed values at the positions of said assisting aircraft obtained in said step c); and e) computing a true speed TAS of said assisted aircraft by using a vector difference between its ground speed, measured in said step b), and the wind speed estimated in said step d), wherein: said steps a) and b) are implemented by at least one device aboard said assisted aircraft and chosen from among: a GNSS receiver and an inertial control centre; said step c) is implemented by a receiver aboard said assisted aircraft; and said steps d) and e) are implemented by a processor.