Abstract
Lidar technology is playing an important role in the application of autonomous navigation and hazard avoidance for the landing and cruising exploration on planetary bodies, such as landing on the moon, Mars, and asteroids. We report a Doppler lidar developed for Chang’E-5 mission in this paper. To meet high reliability and resource constraints, time-sharing measuring and in-phase and quadrature processing in this Doppler lidar system was provided and tested. Compared with the traditional linear frequency modulated systems, this lidar system provides excellent detection probabilities of false alarms, especially for the determination of velocity directions. Flight and vibration tests and plume experiments were carried out to further demonstrate the performance and feasibility during the landing mission in late 2020.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Daniel R. Cremons, Xiaoli Sun, Zachary Denny, Shane W. Wake, Evan D. Hoffman, Erwan Mazarico, Edward C. Aaron, and David E. Smith
Appl. Opt. 59(16) 5020-5031 (2020)
Xiaoli Sun, David E. Smith, Evan D. Hoffman, Shane W. Wake, Daniel R. Cremons, Erwan Mazarico, Jean-Marie Lauenstein, Maria T. Zuber, and Edward C. Aaron
Appl. Opt. 58(33) 9259-9266 (2019)
Yuli Han, Jie Liu, Dongsong Sun, Fei Han, Anran Zhou, Ruocan Zhao, Xianghui Xue, Tingdi Chen, Fudong Zhen, and Ye Lu
Appl. Opt. 59(9) 2686-2694 (2020)