摘要
介绍了一种基于单片机和数/模转换芯片的白噪声信号发生器的软硬件设计与实现。阐述了系统的工作原理、设计方案和软件实现。设计中通过采用优质的随机序列、高效的D/A转换电路、精密的音量控制系统等手段输出符合国标[1]要求的白噪声掩蔽信号,具有性能稳定、调测方便、操作灵活等优点。
The design and implementation of hardware and software of white noise signal generator based on MCU（ micro controller unit） and D/A converter is introduced. The system working principle, design scheme and software implementation are given. The high-quality random sequence, efficient D/A conversion circuit, precision volume control system and so on are used to output the masking white noise signal which is in line with GB and it has some advantages such as large stable performance, easy debugging and flexible operation.
出处
《测控技术》
CSCD
北大核心
2010年第1期44-46,共3页
Measurement & Control Technology
