Aircraft guidance system and method for realizing fall angle constraint

The invention discloses an aircraft guidance system and method for realizing fall angle constraint. The system can firstly set a launching angle of an aircraft by inputting an expected fall angle and a target distance coordinate; a missile-target sight angle of the aircraft in real time is measured through a missile-target sight angle measuring module after the aircraft is started and controlled, and the measured missile-target sight angle is transmitted to a guidance law resolving module in real time; the guidance law resolving module is used for resolving a guidance law in real time according to the measured missile-target sight angle after the aircraft is started and controlled, and transmitting the resolved guidance law information to an execution module in real time; and the execution module can control the aircraft to move according to the calculated guidance law information, so that the falling angle constraint of the aircraft is realized. 本发明公开了一种实现落角约束的飞行器制导系统和方法，该系统可以首先可以通过输入期望落角和目标距离坐标，设定飞行器的发射角；通过