近年来陆续有资料表明,英国和意大利在远程高带宽光纤线路传输特性方面做了大量的研究工作。这里着重介绍意大利埃利尼亚水下系统公司新的重型鱼雷用的典型光纤通信系统设计方案。该系统采用普通光波长的全双工光传输来双向发送数据包。考虑到在电路接口采用透明半双工同步数据线路控制(SDLC)通信协议,为了避免数据包头误码,在光通路中数据包之间使用了背景时钟,同时还通过计算机建模来预测光纤线路连同放线器和附属器件系统的工作状况和性能。 In recent years, some sources have indicated that Britain and Italy have done a great deal of research work on the transmission characteristics of long-haul high-bandwidth optical fiber lines. Here is an overview of a typical fiber optic communications system design for the new heavy torpedo of El Niño, Underwater Systems, Italy. The system uses ordinary light wavelength full duplex optical transmission to send data packets bidirectionally. Taking into account the transparent half duplex synchronous data line control (SDLC) protocol used in the circuit interface, in order to avoid the error of the data packet header, the background clock is used between the data packets in the optical path and the optical fiber line is also predicted by the computer modeling Along with the working conditions and performance of the pay-off and accessory system.