频谱可设的色噪声生成算法设计与实现  

Design and implementation of spectrum settable colored noise generation algorithm

作　　者：董海涛[1] 罗建[1] 朱峰[1] 刘义海[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《传感器与微系统》2013年第5期105-107,110,共4页Transducer and Microsystem Technologies

摘　　要：色噪声模拟实际环境背景对实验室半实物仿真实验具有重要的应用价值。基于Wiener最佳滤波器理论,提出了一种色噪声生成算法,并实现了基于Matlab GUI和TMS320F2812数字信号处理器芯片的嵌入式软硬件平台。验证实验表明:系统可实时输出10 kHz带宽的设定频谱结构的色噪声信号,输出信号的统计频谱特征与设定频谱特征误差不超过3 dB,满足实际应用色噪声的特殊要求,具有广阔的应用前景。Using colored noise to simulate actual environmental background has important application valuable for laboratory semi-physical simulation experiment.based on Wiener best filter theory,a colored noise generation algorithm is proposed and an embedded hardware and software platform is implemented based on Matlab GUI and TMS320F2812 digital signal processor chip.The validation tests show that the system can real-time output 10 kHz bandwidth colored noise signal setting spectral structure,and the error between statistical spectral characteristics of output signal and setting spectral characteristics is less than 3dB,which meets the special requirements of the practical applications of the colored noise,and has broad application prospects.

关 键 词：色噪声 Wiener最优滤波 嵌入式软硬件平台 实时系统 

分 类 号：TB534[理学—物理]