【作者】 蔡红星； 徐莹； 郑峰； 张喜和；

【Author】 CAI Hong-xing XU Ying ZHENG Feng ZHANG Xi-he Changchun University of Science and Technology,Changehun 130022,China

【机构】 长春理工大学；

【摘要】 数字滤波目前是信号分析处理核心技术,发展高性能的滤波除噪法已成为分析信号处理技术研究中的前沿课题。在数字信号处理中,傅里叶变换(fourier transform)是重要的方法之一,它架起了时域和频域之间的桥梁。时域上重叠在一起的光谱信号,在频域上能够比较明显地分离出来。本文通过matlab仿真,模拟了从较强荧光干扰下提取拉曼信号的过程.利用频率特性差异进行荧光及噪声滤除。并对仿真结果进行了分析。更多还原

【Abstract】 Digital filter is the signal processing core technology analysis,development of high-performance filter Noise has be- come a law of signal processing technology in the forefront of research topics.In digital signal processing,Fourier Transform is proved to be very important for setting up a bridge between time and frequency domains.The spectral signals overlapped in time domain can be clearly separated in frequency domain.Through matlab we successfully performed the extraction of the Raman signals from the strong fluorescence interference.And simulation results were analyzed.更多还原