三种数字集群系统的话音编码技术分析比较

Comparison of Voice Coding Scheme in Three Digital Trunking Systems

在众多数字集群系统标准中 ,Motorola公司研制的综合调度增强型网络iDEN、泛欧数字集群无线系统TETRA和以色列的数字集群系统FHMA属姣姣者。在优选适合我国国情的数字集群系统标准的最后阶段 ,就是从这三种系统标准中优选一种。本文主要介绍这三种系统的话音编码技术 ,并对它们进行分析比较。

iDEN(Integrated Dispatch Enhanced Network),TETRA(Trans European Trunked Radio)and FHMA(Frequency Hopping Multiple Access) are three advanced digital trunking system in the world.According to the specific requirements in our country,one system shall be selected among them for standard implementation.This paper mainly introduces the voice coding schemes used in these systems,and makes a comparison between them.