A Design and Implementation of Simple Spectrum Analyzer Based on DDS

作者:Hang Yu*; Sun Kexue; Liu Yanming; Zhu Siqing; Cheng Xiefeng
来源:3rd International Conference on Machinery, Materials and Information Technology Applications (ICMMITA), 2015-11-28 to 2015-11-29.

摘要

In this paper, we design a basic spectrum analyzer which can analyze the signal with the bandwidth in 10 MHz similar to 100MHz and the minimum resolution in 100 KHz. We utilize the AD9854 DDS (Direct Digital Synthesizer), STM32F407, AD831, AD835 and the TFT LCD to design and implement a system that has menu-driven function selection mode and better man-machine interface. This system and actual test results showed that this spectrum analyzer can achieve the design goal. It reduces the cost and is portable with low power consumption.