一种高误码率信道条件下的无人机载光电吊舱操控指令传输策略  

A Control Instruction Transmission Strategy for UAV Optoelectronic Pod in the Case of High Error Rate

作　　者：梅风华 余永朝[2] 

机构地区：[1]海军装备研究院,上海200434 [2]华中光电技术研究所-武汉光电国家实验室,湖北武汉430223

出　　处：《光学与光电技术》2017年第4期69-71,82,共4页Optics & Optoelectronic Technology

基　　金：国家重大科学仪器设备开发专项(2013YQ290489)资助项目

摘　　要：提出了一种无人机载光电吊舱在高误码率信道条件下操控指令传输策略。该传输策略通过连续重传机制保证了操控指令传输的可靠性,并依靠序号标记机制避免了重复响应。在误码率为0.01的情况下,操控指令数据包长度由20字节减少到10字节,可以将丢包率由0.85减小为0.65,正确接收一个数据包平均所需要的最少传输次数由8次大幅减少到3次。采用该传输策略保证了光电吊舱对操控指令的正确接收,降低了操控延迟,避免了重复响应。A control instruction transmission strategy in the case of high error bit ratio for unmanned aerial vehicle（UAV） optoelectronic pod is proposed in this paper. A continuous retransmission mechanism is used in control instruction transmis-sion for reliability, and the serial marking mechanism can avoid repeated responses. In case of the error rate is 0. 01, the packet length of control instruction reduced from 20 bytes to 10 bytes,the packet loss rate reduced from 0. 85 to 0. 65,and the minimum number of transfers required to receive a packet correctly, reduced from 8 to 3. Therefore, the transmission strategy presented in this paper can ensure the proper reception of the instructions. It reducs the operation delay and avoids repeated responses.

关 键 词：高误码率 丢包率 连续重传 序号标记 操控延迟 

分 类 号：TN948.64[电子电信—信号与信息处理]