First of all, it is known that there is a point or signal source to be observed in one direction, so for better observation, you need to adjust the entire downlink cable, only the height.

Then through your adjustment, the whole reflecting surface is excellent and can absorb many reflected signals. This is the basic process, and you need to know a few things before you do the problem.

Controllable variables: the positions of the three vertices of the reflector x y z are the parameters given in appendix 1. How to control them: adjust the height through cables. The range from -0.6 to +0.6 described in Appendix 6 is the range of H..

How do you control it: how to evaluate your surface Excellence or how to prove it; It says later that you can think for yourself.

Exercise:

The actuator corresponding to the point of the CS line and the phase angle of the reference sphere contracts inward, and the actuator in the unfolding direction centered on this point basically extends to different degrees, so that a circle with a radius smaller than that of the reference sphere can be reconstructed, and the actuator outside illumination can be regarded as stationary.

How to determine the illumination area, taking the intersection of SC line and reference sphere as the center and the radius of illumination area as the distance from the nearest boundary point to SC line; Here, we seek optimization. We can observe the position of the light center and then combine the boundaries. The maximum expansion and contraction of the actuator at the boundary is 0.6 meters, which depends on how small the spherical surface can be, so that the radius range as an independent variable can be obtained.

Then the expansion and contraction of the actuator in the illumination area are calculated in turn. How to calculate expansion and contraction can be calculated by removing the same length of two circles with different sizes and the corresponding points on them.