Arnon S
Appl Opt. 1998 Jul 20;37(21):5031-6. doi: 10.1364/ao.37.005031.
In some of the future laser communication satellites, it is plausible to assume that tracking and communication receivers will use the same detector array. The reason for dual use of the detector is to design simpler and less expensive satellites. Satellites vibrate continually because of their subsystems and environmental sources. The vibrations cause nonuniform spreading of the received energy on the detector array. In view of this, the information from the tracking system is used to adapt individually the communication signal gain of each of the detectors in the array. This adaptation of the gains improves communication system performance. It is important to emphasize that the communication performance improvement is achieved only by gain adaptation. Any additional vibrations decrease the tracking and laser pointing system performances, which decrease the return communication performances (two-way communication). A comparison of practical communication systems is presented. The novelty of this research is the utilization of natural satellite vibrations to improve the communication system performance.
在一些未来的激光通信卫星中，可以合理地假设跟踪和通信接收器将使用相同的探测器阵列。探测器双重使用的原因是为了设计更简单、成本更低的卫星。卫星由于其子系统和环境源而持续振动。这些振动会导致接收到的能量在探测器阵列上不均匀扩散。鉴于此，来自跟踪系统的信息被用于分别调整阵列中每个探测器的通信信号增益。增益的这种调整提高了通信系统性能。需要强调的是，通信性能的提高仅通过增益调整来实现。任何额外的振动都会降低跟踪和激光指向系统的性能，进而降低回程通信性能（双向通信）。本文给出了实际通信系统的比较。这项研究的新颖之处在于利用卫星的自然振动来提高通信系统性能。
