摘要
总结了模拟集成电路和VLSI电路硬件实现连续小波变换(CWT)的常用方法:时域法和频域法.针对频域法中带通滤波器组设计的难以实现问题,提出利用泰勒多项式(Taylor-series)对DOG小波函数进行展开,以获取该小波函数的逼近函数,而后构建DOG小波变换逼近函数的系统模型,仿真结果验证了这种方法对于DOG小波的可行性.
This paper summarized that the main methods of implementing continuous wavelet transform were Timedomain method and Frequency-domain method in analog integrated circuit and VLSI integrated circuit.Considering that the design of band-pass filters in Frequency-domain method is difficult to implement,this paper proposed the means of using Taylor-series to spread the wavelet function.It could obtain the function approximation of the wavelet function.Then this paper raised the method of using Taylor approximation to build the system function model of continuous wavelet transform.The feasibility of this method is validated taking DOG wavelet as an example.
出处
《微电子学与计算机》
CSCD
北大核心
2014年第10期72-75,80,共5页
Microelectronics & Computer
基金
国家杰出青年科学基金(50925727)
国防科技计划项目(C1120110004
9140A27020211DZ5102)
教育部科学技术研究重大项目(313018)
湖南省教育厅科研项目(12C0644)
湖南省教育厅科研项目(13C210)
衡阳市科技计划项目(2011KJ27)
