摘要
针对通信领域实验的要求设计了手持式高频信号发生器。产品采用当前较为成熟,取得广泛使用的直接数字频率合成技术设计,可以产生频率范围为100Hz~100MHz的射频信号,频率分辨率能够达到0.1Hz。信号源可实现多种调制方式,并且支持内/外调制。该产品具有易携带,频率调节精度高,信号稳定等特点。本文讲述了该设计的结构原理、硬件电路设计,功能实现方案等,并给出了具体的程序设计流程。
According to the requirements of the experiment in the field of communication,a handheld high frequency signal generator is designed.The product adopts the current mature and widely used direct digital frequency synthesis technology,which can generate RF signals in the frequency range of 100 Hz〜100 MHz,and the frequency resolution can reach 0.1 Hz.It can support multiple internal/external modulation modes.The product is easy to carry,high frequency regulation accuracy,signal stability and other characteristics.This paper describes the structure principle,hardware circuit design,function realization scheme of the design,and gives the specific program design process.
作者
孙鹏翔
韦昱行
董智健
Sun Pengxiang;Wei Yuxing;Dong Zhijian(College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing Jiangsu 210023)
出处
《中国仪器仪表》
2021年第11期76-81,共6页
China Instrumentation
基金
国家级大学生创新训练计划支持。
关键词
高精度
高频
便携
DDS
High precision
High frequency
Portable
DDS
