Mitsubishi Denki Kabushiki Kaisha

Japan Aerospace Exploration Agency

Masashi Furuta

Yoshihito Hirano

Toshiyuki Ando

Masahiro Hagio

Shumpei Kameyama

Toshio Wakayama

Hiroshi Sakamaki

Tomoya Matsuda

Kimio Asaka

Yoshinori Okuno

Syumpei Kameyama

Naoki Matayoshi

Hidetaka Kiyosue

A light wave radar apparatus includes a frequency deviation detecting unitfor detecting a frequency deviation fof a light signal, and a weighted average processing unitfor determining a systematic error &#x394;Vfrom the frequency deviation fdetected by the frequency deviation detecting unit, and subtracts the systematic error &#x394;Vfrom a wind velocity Vcalculated by a Doppler signal processing unit. As a result, the light wave radar apparatus can carry out a measurement of the wind velocity Vwith a high degree of precision.

Light wave radar apparatus

A measurement system for an aircraft having the three-axis components of the airspeed of the aircraft, the three-axis components of the wind speed currently encountered by the aircraft, and the wind speed distribution ahead of the aircraft simultaneously in real time. It comprises a Doppler anemometer measuring the airflow speeds at a plurality of points separated by a prescribed distance in the beam irradiation direction that changes in a time series, and an inertial data measurement device measuring the movement information and positional information of the aircraft. Moreover, the display system of the aircraft includes the horizontal two-axis airspeed of the aircraft, the three-axis components of the wind speed currently encountered by the aircraft, and information on the wind speed distribution ahead of the aircraft are displayed simultaneously in real time.

Airspeed / wind speed measurement device for aircraft, and display device for same

Growing community of inventors

Tokyo, Japan

Masashi Furuta