多制式调制模块的原理与设计

The Design of the Multi-Mode Modulation Module

分析了多制式调制的原理 ,提出并实现了一种基于PCI总线的多制式调制模块的设计方案。它采用正交调制与数字上变频方法 ,可以生成多种中频调制信号。它的另一个特点是将基带处理单元用PCI总线隔离开来 ,可以结合通用计算机或商用DSP处理模块 ,构成一结构灵活而又具有实时处理能力的多制式调制系统。

The design method of a multi mode modulation module based on PCI bus is presented and realized. Its foundation on which many types of middle frequency modulated signal are produced is the theory of orthogonal modulation and digital up converting. Another abstractive feature is that it connects the base band processing unit with PCI bus so that a flexible and powerful multi mode modulator can be made by combined this module with the general computer or commercial DSP board.