格型滤波器，抑制扩频通信中窄带干扰，此代码抑制一个单音干扰-Lattice filters, narrowband interference suppression in spread spectrum communications, the code to suppress a tone interference

数字滤波器的各种结构的C程序实现，包含格型滤波器。本文没有讨论复杂的数学方法及公式。相信对正在为滤波器结构实现烦恼的人有所帮助。-Various structures of digital filter C program, including lattice filter. This article does not discuss the complex mathematical methods and formulas. I believe the troubles are achievi