基于DDS技术的铁路移频信号发码器  

Railway FSK Signal Generator based on DDS

作　　者：纪娜[1] 魏学业[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《铁路计算机应用》2006年第8期45-47,共3页Railway Computer Application

摘　　要：描述直接数字频率合成器DDS(DirectDigitalSynthesizer)的组成,构建一种基于DDS的六路铁路信号发码器。分析信号的产生精度。给出系统的硬件框图和软件流程图。The constitute of the direct digital synthesis（DDS） was described. Six channels railway FSK signal generator based on DDS was designed for debugging command of the domestic railway signal equipment. The hardware construction and the algorithm flow were also presented, at the end the precision of the generating signal was analysed.

关 键 词：直接数字频率合成 频移键控 直接数字调制 铁路发码 

分 类 号：U284[交通运输工程—交通信息工程及控制]