基于AD9958的频谱分析仪设计  

Design of spectrum analyzer based on AD9958

作　　者：黄虎[1] 杨文旭[1] 

机构地区：[1]成都理工大学信息科学与技术学院,四川成都610059

出　　处：《电声技术》2016年第6期33-36,共4页Audio Engineering

摘　　要：系统以单片机STM32F407,FPGA为主控单元,采用AD9958产生本振信号,经乘法器与被测信号混频,再结合滤波、放大、A/D转换过程,实现对80～100 MHz频段的频谱分析,并在FTF触屏上显示频谱.实验表明,系统控制方式灵活,实用性较强,具有很好的通用性和推广前景.SCM STM32F407 and FPGA are adopted as the main control unit, with AD9958 to generate local oscillator signal, through Multiplier and measured signal mixing, coupled with filter, amplification and A/D conversion process. Finally spectrum analysis of 80- 100 MHz band is achieved, and spectrum on the FTF touch screen is displayed.The experiment show that the system eontrol mode is flexible and practical, and has a good general and promotion prospects.

关 键 词：演播室 建声 电声 声学测试 听音评价 

分 类 号：TM935.21[电气工程—电力电子与电力传动]