江苏科技信息
江囌科技信息
강소과기신식
Jiangsu Science & Technology Information
2015年
26期
60-63
,共4页
全向信标系统%直接数字合成%幅度%相位
全嚮信標繫統%直接數字閤成%幅度%相位
전향신표계통%직접수자합성%폭도%상위
DVOR system%direct digital synthesis (DDS)%amplitude%phase
文章针对INDRA多普勒全向信标系统VRB-53D全新的构架,通过理论分析阐述了发射信号的产生和调制以及关键参数的控制过程.首先概括了VRB-53D发射机组成和各板件功能,从直接数字合成(DDS)芯片工作原理出发,对载波和边带信号的产生和调制进行了描述.随后重点分析了载波和边带信号幅度和相位控制机制,包括设备安装过程中需要注意的问题.最后通过对比几类主流全向信标设备功能实现上的不同,为技术人员对的日常维护和选型采购提供了新的思路.
文章針對INDRA多普勒全嚮信標繫統VRB-53D全新的構架,通過理論分析闡述瞭髮射信號的產生和調製以及關鍵參數的控製過程.首先概括瞭VRB-53D髮射機組成和各闆件功能,從直接數字閤成(DDS)芯片工作原理齣髮,對載波和邊帶信號的產生和調製進行瞭描述.隨後重點分析瞭載波和邊帶信號幅度和相位控製機製,包括設備安裝過程中需要註意的問題.最後通過對比幾類主流全嚮信標設備功能實現上的不同,為技術人員對的日常維護和選型採購提供瞭新的思路.
문장침대INDRA다보륵전향신표계통VRB-53D전신적구가,통과이론분석천술료발사신호적산생화조제이급관건삼수적공제과정.수선개괄료VRB-53D발사궤조성화각판건공능,종직접수자합성(DDS)심편공작원리출발,대재파화변대신호적산생화조제진행료묘술.수후중점분석료재파화변대신호폭도화상위공제궤제,포괄설비안장과정중수요주의적문제.최후통과대비궤류주류전향신표설비공능실현상적불동,위기술인원대적일상유호화선형채구제공료신적사로.
According to the new architecture of INDRA DVOR system VRB-53D , generation and modulation of the transmitted signal and the control process of key parameters is described by theoretical analysis in this paper. The composition of transmitter and function of each board is summarized at first , generation and modulation of the carrier and sideband signal is elaborated refer to operating principle of the Direct Digital Synthesis (DDS) chip. Then amplitude and phase control mechanisms of the carrier and sideband signal is elaborated , including several installation problems that need to pay attention. Finally , comparison of function realization is given out among three kinds of mainstream equipment, which extracts new ideas for the technical staff in routine maintenance and procurement selection.
