高可靠性1394总线传输线缆阻抗特性测试研究-《计算机技术与发展》

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摘要:: 面向新一代飞机的1394总线应用中，传输线缆作为总线传输介质，影响总线的传输特性。为满足新型机载1394线缆的高可靠性要求，文中对1394线缆的结构及差分阻抗进行了理论分析，提出了1394线缆的测试设备及测试环境，采用专用设备对1394线缆的差分阻抗进行了测试，测试结果表明，被测1394线缆满足线缆阻抗特性指标。在测试结论的支撑下，规范了1394线缆阻抗特性测试指标。为高可靠性1394线缆传输提供了理论依据及测试实验数据，为1394线缆的选型及应用奠定了基础，对构建整个1394总线具有指导意义并进而指导整个系统设计

Abstract:: For the 1394 bus application with a new generation of aircraft,the wire as the medium of the bus has an influence on the char-acteristic of the bus transmission. To satisfy the 1394 wire requirements for vehicle management system,analyze the structure of 1394 wire and difference impedance,put forward the test equipment and environment,test the 1394 wire used the special equipment and test result is the tested 1394 wire satisfied difference impedance index. With the conclusion,it normalized standard test index. Provide theory proof and test data for high reliability 1394 wire. It lies a foundation for the 1394 wire choice and application,has a guiding significance for building the whole 1394 bus and guide the whole system design