公开(公告)号：US20140129057A1

公开(公告)日：2014-05-08

申请号：US13855124

申请日：2013-04-02

Applicant: Prox Dynamics AS

Inventor： Alexander Philip Hall ,  Trygve Frederik Marton ,  Petter Muren

IPC: G05D1/02

CPC classification number: G05D1/0202 ,  G01P5/02 ,  G05D1/0204

Abstract: Local wind fields can be predicted if both the airspeed and the ground speed of the helicopter are known. An aircraft that uses an inertial navigation unit, autopilot and estimator allows a measure of ground speed to be known with good certainty. The embodiments herein extends this system to allow an estimate of the local wind field to be found without actively using an airspeed sensor, but instead combining the measurements of an accelerometer and a drag force model and a model of controlled aerodynamics of the aircraft to estimate the airspeed, which again can be used to estimate the local wind speed.

Abstract translation: 如果直升机的空速和地面速度都已知，则可以预测局部风场。 使用惯性导航单元，自动驾驶仪和估计器的飞机可以很好地确定地面速度的测量。 这里的实施例扩展了该系统以允许在不主动使用空速传感器的情况下找到局部风场的估计，而是组合加速度计和拖曳力模型的测量以及飞行器的受控空气动力学模型以估计 空速，再次可以用来估计当地的风速。

公开(公告)号：US09031719B2

公开(公告)日：2015-05-12

申请号：US13855124

申请日：2013-04-02

Applicant: Prox Dynamics AS

Inventor： Alexander Philip Hall ,  Trygve Frederik Marton ,  Petter Muren

IPC: G05D1/00 ,  G05D1/02

CPC classification number: G05D1/0202 ,  G01P5/02 ,  G05D1/0204

Abstract: Local wind fields can be predicted if both the airspeed and the ground speed of the helicopter are known. An aircraft that uses an inertial navigation unit, autopilot and estimator allows a measure of ground speed to be known with good certainty. The embodiments herein extends this system to allow an estimate of the local wind field to be found without actively using an airspeed sensor, but instead combining the measurements of an accelerometer and a drag force model and a model of controlled aerodynamics of the aircraft to estimate the airspeed, which again can be used to estimate the local wind speed.

Abstract translation: 如果直升机的空速和地面速度都已知，则可以预测局部风场。 使用惯性导航单元，自动驾驶仪和估计器的飞机可以很好地确定地面速度的测量。 这里的实施例扩展了该系统以允许在不主动使用空速传感器的情况下找到局部风场的估计，而是组合加速度计和拖曳力模型的测量以及飞行器的受控空气动力学模型以估计 空速，再次可以用来估计当地的风速。