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本文介绍了一个DAB(Digital Audio Broadcasting)原型发射机数字基带部分 的设计与实现 ，包括复接器、信道编码器和OFDM调制器.它的内部功能和外部特性完全符合 ETS 300 401和 其他相关标准，支持多种业务类型，具有方便的用户接口.它的I/O接口和核 心部件采用基于 通用内部接口的模块化设计，可根据用户需要灵活配置.同现有的发射机产 品相比，具有成 本低，易于调试，可灵活配置等特点.
This article describes the design and implementation of a digital baseband part of a prototype digital transmitter (DAB) transmitter, including multiplexers, channel encoders and OFDM modulators. The internal functions and external features are fully compliant with ETS 300 401 and other related standards , Supports a variety of business types, with a convenient user interface.Its I / O interfaces and core components with a modular design based on a common internal interface, according to user needs flexible configuration.Compared with the existing transmitter products, with Low cost, easy to debug, flexible configuration and so on.