有关正交镜像滤波器组的优化设计方面的文章，方法新颖，简单实用-For the optimization of quadrature mirror filter design for articles on new, simple and practical

This program designs a prototype filter for use in a Quadrature Mirror Filter filterbank. This two-channel filterbank has four filters, each based on a lowpass prototype H(z). -This program designs a prototype filter for use in a Quadrature Mirror

quadrature mirror filter.it is used as fir filter.