基于多频互控分析的记发器信令生成器的工程设计实现  

The Design Implementation of the Register Signal Generator Based on the Analysis of Multi Frequency and Multi Control

作　　者：曾春[1] 

机构地区：[1]重庆工商职业学院电子信息工程学院,重庆401520

出　　处：《重庆电子工程职业学院学报》2015年第1期147-151,共5页Journal of Chongqing College of Electronic Engineering

摘　　要：1号信令是电话接续的重要信令,作为1号信令重要组成部分的记发器信令的生成与检测一般都是由专用芯片实现。由于硬件接口和功能固定,在实际使用中往往受到很大限制,因此用通用芯片来实现这一功能可以大大增加灵活性,兼容性。但在软硬件设计之前,准确分析记发器信令的信号波形特性十分重要,往往会决定最终的设计性能指标。首先分析记发器信令的具体物理特性,其具体实验数据取自于满足1号信令协议标准的相关设备,然后分析记发器信号的多频互控流程,包括编码序号和频率成分的对应关系、信号的具体分类、信号的发送流程等,这对于建立从协议层到物理层的相关机制都是十分有意义的。最后给出工程设计的基本思路,包括从ARM+DSP的架构设计、逻辑层次设计、相互之间的接口关系、配合机制等。No.1 sig is the important telephone connection sig. Generally, the generation and detecting of the signal, especially the MFC was implemented based on ASIC. But the flexibility is limited for the unchangeable hardware interface and function, so the universal DSP is needed. The analysis of the waveform characteristics is more important before software and hardware design for it will decide the final performance index. In this paper, the specific physical characteristics and the multi frequency process, including the signal class and sending flow, are analyzed. It is important to establish the related mechanism from the protocol layer to physical layer. In the end the engineering designing such as the ARM ＋DSP architecture,logic design, interface and so on will be discussed.

关 键 词：记发器信令 DSP ARM 双音多频 

分 类 号：TN911.72[电子电信—通信与信息系统]