Scientific explorations have shown that the lunar water-ice exists only in the bottom of craters of lunar South and North pole, where is permanently dark and as cold as 40K This paper presents the concept of increase the temperature of water-ice by reflecting the sunlight to a certain area using polar orbit satellite formation, such that the water-ice is more detectable. The orbit of spacecraft is designed and the expected attitude is derived based on the relative motion between the spacecraft and the water-ice. The objective is to keep the reflected light from spacecraft point to the water-ice during the process so that the water-ice can be heated by solar radiation. A nonlinear adaptive controller is developed. Numerical simulations demonstrate the effectiveness of the control algorithm.

来源平台：CONFERENCE PROCEEDINGS OF 2019 5TH INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND ROBOTICS (ICCAR)