基于OMAP L1x的轨道移频信号检测的硬件设计  

Hardware Design of Frequency-shift Track Signal Detection Based on OMAP L1x

作　　者：杨明极[1] 张洪洋[1] 刘喜庆[1] 

机构地区：[1]哈尔滨理工大学测控技术与通信工程学院,哈尔滨150080

出　　处：《电测与仪表》2011年第11期84-87,共4页Electrical Measurement & Instrumentation

摘　　要：根据轨道移频信号特性,利用带通采样的方法和ZFFT对移频信号进行处理,能够满足精度要求。针对移频信号的频谱特点,提出了利用OMAP L1x进行高分辨率检测,同时给出了系统的硬件框图,最后分析了系统的实时性。该系统具有扩展性强、处理速度快、精度高等优点,为设计高性能、多功能的移频检测设备提供了依据。Depending on the characteristics of Frequency-shift track signal,this paper presents a method concerning band-pass sampling and ZFFT to process the Frequency-shift signal, which can satisfy the demand of precision. According to frequency spectrum characteristics of Frequency-shift signal, this paper suggests to make use of 0MAP Llx for realizing a high resolution detection of Frequency-shift signal. It also gives a hardware block of the system and analyses real-time of the system. This system has such advantages as easy extensihility, fast processing speed, high precision. These advantages offer foundation to device. design perfect performance and multifunction Frequency-Shift detection

关 键 词：移频信号 带通采样 分辨率 实时性 OMAP L1x 

分 类 号：TM73[电气工程—电力系统及自动化] TP202.2[自动化与计算机技术—检测技术与自动化装置]