摘要
兼蓄并用流星余迹、对流层散射和Es层信道资源的超短波联合超视距通信系统,是流星余迹通信设备的波形扩展和能力提升设备。基于上述信道模式可在同一链路实现弯管传输的物理机制,论述了超短波联合超视距通信的可行性;进而给出了一种通信系统解决方案,对其功能特点、系统组成、工作流程及关键技术进行了简要介绍;并通过距离为1 495 km和293 km的2条链路的野外试验,评估了多模共链的超视距通信效果,表明在超远距离及近距离上皆实现了与单一流星余迹模式相比的通信能力提升。
The VHF joint beyond line of sight（JBLOS） communication system,which makes use of coexistent meteor trail,sporadic E and troposcatter channel resources,is an enhancement equipment of the existing meteor burst communication system improved with waveform expansion and capability upgrade.Based on the physical mechanism that the above channel modes can support bent-pipe transmission in the same link,a discourse on the feasibility of VHF JBLOS communication is first made.Then a communication system solution is given and a brief introduction of its functions and features,system compositions,work flow as well as key technologies is provided.Furthermore,through the field test of two links whose distances are 1495 kilometres and 293 kilometres,the communication effect with multi-mode coexistence in a link is evaluated,which indicates an improvement of the communication capability at both super long range and short range compared with single meteor trail mode.
出处
《无线电通信技术》
2013年第4期18-21,共4页
Radio Communications Technology
关键词
联合超视距
多模共链
容中断伺机连续通信
速率自适应
自适应业务接入
joint beyond line of sight（JBLOS）
multi-mode coexistence in a link
disruption tolerant and opportunisticly continuous communication
rate-adaptive
adaptive service access
