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旋转抛物面型多反射镜拼接结构的天线在空间激光多点间激光通信中有着重要的应用。选取不同的旋转抛物面基底面型,系统有不同的通信范围。针对作为基底的旋转抛物面面型进行研究,讨论了不同抛物线系数p与通信范围θ之间的关系,分析了不同有效口径下的通信范围,及其合理性。结果表明,在合理的取值范围下,抛物线系数p=28时,最大通信角度可以达到118.7377°,但由于后续拼接反射镜的因素限制,得出合理选择抛物线系数p=50时的面型,而此时通信范围为109.8084°。
Antenna with rotating parabolic multi-mirror splicing structure has an important application in space laser multi-point laser communication. Select different rotating paraboloid base surface type, the system has different communication range. The relationship between parabola coefficient p and the communication range θ is discussed, and the communication range under different effective caliber is analyzed and its rationality is discussed. The results show that the maximum communication angle can reach 118.7377 ° when the parabola coefficient p = 28 within a reasonable range of values, but the face shape with a reasonable parabolic coefficient p = 50 is obtained due to the factor constraints of the subsequent splicing mirrors. The communication range at this time is 109.8084 °.