摘要
随机共振作为一种新颖的信号处理手段在各个领域得到广泛应用,它的硬件实现具有重要的工程应用价值。介绍了一种便携式变步长随机共振仪,硬件采用片上系统(system on chip)作为CPU。为了同时实现FFT和随机共振算法,选用了FP-GA作为协处理器。仪器软件建立在实时操作系统基础上,使系统性能更加稳定。介绍了随机共振仪的软硬件组成,给出了仿真实例,验证了算法在随机共振仪上实现的有效性。
Stochastic resonance （SR） is a novel signal processing method, which has been applied widely in various areas. Its hardware implementation has important engineering application value. This paper introduces a portable step-changed stochastic resonance instrument. In the instrument, a kind of system on chip is used as CPU and FPGA is used as the co-processor to realize FFT and SR algorithms. The instrument software is built on RTOS （real time operation system） , which makes the instrument more stable. The hardware and software structure of the instrument is introduced and a simulation example is given to prove the validity of the instrument.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2008年第8期1767-1771,共5页
Chinese Journal of Scientific Instrument
基金
863计划(2006AA04Z146)
国家自然科学基金(50475117)
天津市科技发展计划(06YFGX18200)
高等学校博士学科点专项科研基金(20060056016)资助项目
关键词
变步长随机共振
片上系统
FPGA
step-changed stochastic resonance
system on chip （SoC）
FPGA
