小波变换中具有任意阶正则性及线性相位FIR滤波器的逼近  

The Approximation of Finite Impulse Response Filter with any Order of Regularity and Linear-Phase in Wavelet Transform

作　　者：金吉成[1] 田逢春[1] 

机构地区：[1]重庆大学电子工程系,重庆400044

出　　处：《电子学报》1998年第7期117-122,共6页Acta Electronica Sinica

摘　　要：本文提出了小波变换中线性相位具有任意阶正则性的FIR共轭镜像滤波器的逼近方法，证明用此方法获得的滤波器均方误差最小，并比较了它的幅频特性、能量集中特性、正则性.实验表明，本文得到的滤波器具有很好的综合性能，适于进行数据压缩的应用．A method for the approximation of linear-phase finite impulse response(FIR)quadrature mirror fiber with any regularity in wavelet transform is proposed.It is proved that the obtained filters have the least mean square error.The filter's magnitude-frequency, energy concentration and regularity characteristics are compared with other similar filters. Experiments have showed that the filters have excellent feature and are suitable to the compression of data.

关 键 词：小波变换 线性相应 FIR滤波器 

分 类 号：TN911.1[电子电信—通信与信息系统] TN713[电子电信—信息与通信工程]