基于SOPC/Nios-Ⅱ的高性价比频率特性分析仪  

The High Performance Index Frequency Response Analyzer Based on SOPC/Nios-Ⅱ

作　　者：张志坚[1] 宋跃[1] 

机构地区：[1]东莞理工学院电子工程学院,广东东莞523808

出　　处：《电测与仪表》2009年第11期59-62,共4页Electrical Measurement & Instrumentation

基　　金：广东省工业攻关计划资助项目(2005B10101042);东莞市2006年科技计划资助项目(第2批序号11)

摘　　要：为实现基于SPOC/NiosⅡ高性价比的频率特性分析仪,在Altera-Cyclone EP1C6Q240中嵌入软核处理器NiosII,在NiosⅡ控制下自动产生0～10V/0.1Hz～1MHzDDS扫频正弦波输出到被测系统,然后对经过被测系统的信号进行峰值与相位测量,通过计算得出被测系统的幅频/相频特性,进而完成系统的频率特性测试。实验效果好,实践表明该设计是切实可行的。文中详细介绍系统结构、模拟电路的同时,重点讲述了NiosⅡ-FPGA/SOPC的设计思想和实现方法。In order to fulfill a frequency response analyzer by embedding Nios Ⅱ in Altera -Cyclone EP1C6Q240, 0-10V/0. 1Hz-1IMHz DDS signal was output to measured system, then, width and phase of signals from measured system were tested, and frequency response was analyzed by Nios Ⅱ automatieally, measurement of frequency response was fulfilled. The experiment proved that it was effective and operable. The system instruction, surrounding mimic channel, interface software were discussed in detail, and Nios Ⅱ-FPGA/SOPC design method and implement way were mainly given simultaneously.

关 键 词：片上可编程系统 频率特性分析仪 直接数字信号合成 

分 类 号：TM935[电气工程—电力电子与电力传动] TP274[自动化与计算机技术—检测技术与自动化装置]