导航

Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (S1): 727636-727636.doi: 10.7527/S1000-6893.2022.27636

• Articles • Previous Articles     Next Articles

Design and test of visual-inertial integrated method for landing guidance

Jing NI1(), Bo MA2, Zhaoxu YANG1, Chenggang TAO2, Yan ZHOU2, Yiwen HU1   

  1. 1.AVIC Chengdu Aircraft Design & Research Institute,Chengdu 610091,China
    2.Aviation Key Laboratory of Fighter Integrated Simulation,Chengdu 610091,China
  • Received:2022-06-01 Revised:2022-06-16 Accepted:2022-07-08 Online:2023-06-25 Published:2022-07-21
  • Contact: Jing NI E-mail:njemail163@163.com
  • Supported by:
    Aeronautical Science Foundation of China(201905011004)

Abstract:

To meet the requirement of UAV for visual-based landing guidance in complex environment, the limitations of visual positioning are analyzed through tests. A visual-inertial integrated method based on error state filtering is designed to solve the problem of high delay and misdetection outliers in visual landing guidance. Time synchronization method is used to compensate the delay of visual measurement results, and the detection of outliers is based on self-adaptive covariance of filter innovation. Finally, a flight test is carried out to collect and analyse the visual positioning and visual-inertial integrated data in landing process. The results show that the visual-inertial integrated method is stable and reliable,and that it can effectively improve the real-time performance and continuity of visual landing guidance.

Key words: landing guidance, runway detection, visual-inertial integrated, Kalman filter, flight test

CLC Number: