Wind velocity measurement apparatus and method for aircraft, and greenhouse gas detection apparatus

A wind velocity measurement apparatus for an aircraft, comprising:

• an aircraft attitude obtaining apparatus;
• an ultrasonic or laser wind measurement apparatus configured to measure a relative wind angle;
• an attitude adjustment apparatus, the ultrasonic or laser wind measurement apparatus is fixedly connected to an output end of the attitude adjustment apparatus;
• an aircraft parameter obtaining apparatus configured to obtain a ground velocity and a set course angle of the aircraft;
• and
• a control apparatus connected to each of the aircraft attitude obtaining apparatus, the ultrasonic or laser wind measurement apparatus, the attitude adjustment apparatus, and the aircraft parameter obtaining apparatus, the control apparatus being configured:
• to control, based on an attitude that is of the aircraft and that is obtained via the aircraft attitude obtaining apparatus, the attitude adjustment apparatus to adjust an attitude of the ultrasonic or laser wind measurement apparatus until a transmit end and a receive end of the ultrasonic or laser wind measurement apparatus are both kept horizontal;
• to obtain an absolute wind velocity at the ultrasonic or laser wind measurement apparatus based on the ground velocity of the aircraft, the relative wind angle and the set course angle of the aircraft;
• and
• to obtain an absolute wind angle at the ultrasonic or laser wind measurement apparatus based on the relative wind angle and the set course angle of the aircraft
• wherein the aircraft attitude obtaining apparatus, the attitude adjustment apparatus, the aircraft parameter obtaining apparatus, and the control apparatus are all disposed on the aircraft.