声表面波滤波器衍射校正的有效方法──最小二乘法  

A Elective Method of SAWF Diffraction Compensation──Least Square Method

作　　者：陶雄强[1] 陈抗生[1] 谢炳新 

机构地区：[1]浙江大学信息与电子工程学系,浙江德清电子器材厂

出　　处：《压电与声光》1995年第1期8-10,25,共4页Piezoelectrics & Acoustooptics

摘　　要：研究用最小二乘法校正声表面波滤波器的衍射效应。为了减小计算量，我们选择基带抽样，用最小二乘法求出校正系数，然后根据插值公式求出通带的校正系数。该方法具有设计灵活，收敛快的特点。he paper presents the study of SAWF diffraction compensation by least square method.In order to decrease calculation amount, first of all,the baseband sampling was chosen to compute the correction coefficient by least square method,and then,according to interpolation for-mula,the correction coefficient of passband was obtained. The advantages of the least square method mentioned above are of design convenient and fast convergent speed.

关 键 词：声表面波 滤波器 衍射分析 最小二乘法 

分 类 号：TN713[电子电信—电路与系统]