企业级交换机双向CID业务的DSP实现

本文基于TI公司TMS320C5410定点DSP芯片,根据企业级交换机上主叫识别信息传送业务的特点,设计实现了多路双向主叫识别信息传送业务,双音多频信号的实时检测。对连续相位FSK信号的调制以及FSK信号的实时解调过程进行了研究。其中,FSK信号接收解调模块,一方面描述了实现的主叫识别信息传送业务的数据接收接口,另一方面也可以用来构建固话短消息等电信增值业务平台。

Implement multi-channel bidirectional CID service of enterprise''''s switching system

To describe a designing method can implement DTMP signal real-time-detecting and multi-channel bidirectional CID ser-vice.According to characteristic of CID service of the enterprise' s switching system, the method in this paper based on TI Corpora-tion TMS320C5410 of fixed-point DSP. It also study the procedures of modulation of continual-phase FSK signal and real-time de-modulation of FSK signal. It describes the realization of data-receive port of CID service using FSK signal module, meanwhile, FSK signal module also can be used to construct fixed-line short message, platform of value-added service ,and so on.