摘要
卫星内无线光网络通信的基础在于卫星内无线光通信链路 为保障链路质量,必须解决适合卫星内环境的抗噪和抗多径损害等技术问题,以及相关设备的适当重量、体积和功耗等实现问题 其关键是结合载波和卫星环境的特性,并配合其它卫星技术研究无线光网络通信技术 实验表明,在卫星内实现适应编码调制和脉冲波形技术,无线光噪声复合消除技术、后验均衡技术和有序捆绑解调解码技术等,点对点和点对多点高速光链路误码率达到了正常通信要求 为进一步利用无线光属性组建高服务质量(QoS)网络,获得高的整体通信效率奠定坚实根基.
The intra-satellite wireless optical communication links provide the foundation for the intra-satellite wireless optical network communication. For guaranteeing high quality of the links, the intra-satellite noise-immune technology, the intra-satellite multipath-immune technology and so on are crucial. The parameters of the intra-satellite optical communication instruments, especially the weight, the size and the power consumption, must fit the satellite environment for implementing. The way to do research on the intra-satellite wireless optical network communication is that to fuse the wireless optical network communication technologies and implementation into the satellite technologies and implementation. To utilize the unique characteristics of carrier running in the satellite environment is highly important too. The key components of the novel intra-satellite wireless optical network communication technology are the intra-satellite wireless optical adaptive encoding and modulating technology with the impulse waveform technology, the intra-satellite wireless optical complex noise canceling technology, the intra-satellite wireless optical posterior equalization technology, the intra-satellite wireless optical order trussing demodulating and decoding technology etc. All those must work in the satellite temperature with stress technology and so on. By implementing them, the intra-satellite wireless optical system have stood the test for intra-satellite wireless optical both one point to one point link and one point to multi-points links. Furthermore, technologies of higher layers make the wireless optical network run high efficiently with high Quality of Service (QoS).
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第2期263-266,共4页
Acta Photonica Sinica
基金
863卫星项目后续项目子项目
自然科技基金(60272006)项目子项目
关键词
卫星
无线光网络通信
编码调制
脉冲波形
Intra-satellite wireless optical communication network
Adaptive encoding and modulating with the impulse waveform
Intra-satellite wireless optical complex noise cancelling
Intra-satellite wireless optical posterior equalization
