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在TMS32020上用软件实现了通用性强、兼容性好的双、单音多频编码信令信号接收与产生器。提出了加入CZT的Georczel算法,该算法简明,所需识别时间少,满足实时处理的要求。系统抗干扰能力强,各项指标均满足通信网技术标准,可用于目前国内话网接口,也可为卫星和国际业务提供接口。
In the TMS32020 software to achieve a universal, good compatibility of double, single tone multi-frequency signal encoding and receiving signal generator. The Georczel algorithm which is added into CZT is proposed. The algorithm is concise and requires less recognition time to meet the requirements of real-time processing. System anti-interference ability, the indicators meet the technical standards for communications networks can be used for the current domestic network interface, but also for the satellite and international business interface.