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Optical fiber data bus modulation techniques for military avionics

机译:军用航空电子设备的光纤数据总线调制技术

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In this paper, we propose several modulation techniques for use in military avionics optical fiber data buses, namely, Extended Manchester II Bi-Phase Coding with Beginning-Stopping Flags, Partial Trilevel Manchester II Bi-Phase Coding, Four-ary Pulse Width Modulation, Two-ary Pulse Width Modulation with Amplitude-Distinguished Sync Field, Two-ary Message Pulse Width Modulation and Two-ary Sync Pulse Amplitude Modulation, respectively. Compared with an existing modulation scheme of MIL-STD-1773 avionics data buses, the proposed techniques can be effectively used to overcome the difficulty in recognizing the correct operation states of an active transmitter at the output of optical receivers. The feasibility of proposed modulation schemes are discussed, and their performance is also evaluated
机译:在本文中,我们提出了几种用于军用航空电子光纤数据总线的调制技术,即带开始-停止标志的扩展曼彻斯特II型双相编码,部分三级曼彻斯特II级双相编码,四进制脉宽调制,具有幅度区分同步字段的二元脉冲宽度调制,分别具有二元消息脉冲宽度调制和二元同步脉冲幅度调制的二元脉冲宽度调制。与现有的MIL-STD-1773航空电子数据总线调制方案相比,所提出的技术可以有效地克服在光接收机输出端识别有源发射机正确工作状态的困难。讨论了提出的调制方案的可行性,并评估了它们的性能

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