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
出处
《电测与仪表》
北大核心
2011年第11期84-87,共4页
Electrical Measurement & Instrumentation
关键词
移频信号
带通采样
分辨率
实时性
OMAP
L1x
frequency-shift signal, band-pass sampling, resolution, real-time, OMAP Llx