无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2012年
7期
7-9,43
,共4页
现场可编程门阵列%反向复用%差分时延补偿%链路动态调整
現場可編程門陣列%反嚮複用%差分時延補償%鏈路動態調整
현장가편정문진렬%반향복용%차분시연보상%련로동태조정
field programmable gate array%inverse multiplexing%differential time-delay compensation%link dynamic adjustment
针对以太网通过E1链路接入同步数字系列（SDH）的应用需求,利用现场可编程门阵列（FPGA）完成了将以太网数据包反向复用到多路E1链路上传输的实现方法。介绍了系统总体设计和功能划分,重点描述了各组成模块的设计方法,解决了差分时延补偿和链路动态调整2项关键技术。相对于利用专用集成芯片完成的实现方法,该方法具有设备体积小、功耗低、可扩展性强和可靠性高等优点。对实现的设备进行了测试,测试结果满足功能和性能要求,具有良好的应用前景。
針對以太網通過E1鏈路接入同步數字繫列（SDH）的應用需求,利用現場可編程門陣列（FPGA）完成瞭將以太網數據包反嚮複用到多路E1鏈路上傳輸的實現方法。介紹瞭繫統總體設計和功能劃分,重點描述瞭各組成模塊的設計方法,解決瞭差分時延補償和鏈路動態調整2項關鍵技術。相對于利用專用集成芯片完成的實現方法,該方法具有設備體積小、功耗低、可擴展性彊和可靠性高等優點。對實現的設備進行瞭測試,測試結果滿足功能和性能要求,具有良好的應用前景。
침대이태망통과E1련로접입동보수자계렬（SDH）적응용수구,이용현장가편정문진렬（FPGA）완성료장이태망수거포반향복용도다로E1련로상전수적실현방법。개소료계통총체설계화공능화분,중점묘술료각조성모괴적설계방법,해결료차분시연보상화련로동태조정2항관건기술。상대우이용전용집성심편완성적실현방법,해방법구유설비체적소、공모저、가확전성강화가고성고등우점。대실현적설비진행료측시,측시결과만족공능화성능요구,구유량호적응용전경。
In order to meet application requirement that Ethernet connects to SDH network throuigh E1 link, a design method which inverses multiplex Ethernet packets on several E1 links is proposed by using FPGA. Firstly,the overall design and function division of the system are introduced, and then the design method of main components is elaborated. Two critical technologies such as differ- ential delay compensation and link dynamic adjustment are resolved in the paper. Comparing to the designs that are fulfilled by using ASIC,this design has such advantages as small volume,low power, strong expansibility and high reliability. Finally,the device based on the method is tested, the result shows that the device meets the function and performance requirements and has broad application prospect.
