数据采集与处理2009，Vol.24Issue(6)：797-801,5.
基于高阶近似核和傅里叶系数内插的快速频率估计算法
Fast Frequency Estimation Algorithm Using High Order Approximations to Kernel Function and Interpolation on Fourier Coefficients
摘要
Abstract
The relationship between the approximate kernel and quantization bits is established based on the theoretical analysis.A new technique using high order approximations to kernel function with out multiplication operation is presented to improve the dynamic range for monobit frequency estimator.The algorithm includes the frequency correction by interpolation using the adjacent bin of the maximum of the real or imaginary parts of the Fourier coefficients,thus the computation cost is efficiently decreased to avoid the complex operations of the traditonal frequency correction algorithm.The algorithm is simple and easy for the hardware implemeniation.Finally,the efficiency of the algorithm is verified by theoretical analysis and simulations.关键词
频率估计/正弦信号/离散傅里叶变换/近似核/傅里叶系数Key words
frequency estimation/sinusoid/DFT/approximate kernel/Fourier coefficients分类
信息技术与安全科学引用本文复制引用
祝俊,唐斌,杜正聪,姚旭..基于高阶近似核和傅里叶系数内插的快速频率估计算法[J].数据采集与处理,2009,24(6):797-801,5.基金项目
国防预研基金(41101030402)资助项目. （41101030402）
