摘要
为实时获取战场中来袭激光、大气污染物、毒气等待测物光谱分布信息,根据傅里叶光谱变换理论,研究设计了实时数据处理系统。分析了光谱探测系统结构和工作原理,采用Xilinx公司Virtex2-Pro开发板在ISE10.1开发平台上设计了1 024点基2-FFT算法数据处理模块硬件电路,并通过了第三方仿真软件Modelsim6.3f的仿真。结果表明,FPGA实际计算1 024点基2-FFT频谱分布信息与Matlab理论计算结果相同。当芯片工作在100 MHz时,完成1 024点16位基2-FFT数据处理约需32μs,满足光谱探测实时数据处理要求。
In order to obtain the real-time spectrum distribution information such as the coming laser in war,atmospheric pollutant and poison gas,etc.,a data processing system was designed based on Fourier Spectrum Transform（FFT） theory.The structure of spectrum detection system and operating principle were analyzed,and the XC2VP30 chip of Xilinx＇s corporation was used to design a data processing module hardware circuit for the implement of 1 024-point radix 2-FFT algorithm,which was simulated by means of Modelsim6.3f software.The simulation result showed that the spectrum distribution information calculated by 1 024-point radix 2-FFT with FPGA is the same as the theoretical calculation result of Matlab.When the chip operates at 100 MHz,the processing of 1 024-point 16 b data of radix 2-FFT will consume 32 μs,and the result meets the requirement of real-time data processing in spectral detection.
出处
《电光与控制》
北大核心
2010年第8期78-82,共5页
Electronics Optics & Control
基金
科技部国际合作重点项目(2006DFB72510)
国家自然科学基金(60572019)
山西省科技攻关项目(20090321044)
关键词
光谱探测
快速傅里叶变换
数据处理
FPGA
谱线标定
spectral detection
Fast Fourier Transform
data processing
FPGA
spectrum line calibration
