引言在通信系统中，例如IP电话、可视电话及免提数字蜂窝电话系统中，回声和噪声会严重影响通信质量。
IntroductionIn the communication systems, echo and noise will seriously affect speech communication quality, such as IP telephone, videophone and hand-free digital cell phone systems etc.
MUOS系统将向分布于全球的地基战斗单位提供类似蜂窝电话的服务，卫星在太空中起蜂窝发射塔的作用。
The MUOS system will provide cell phone-like services to ground-based warfighters around the globe, with the satellites acting as "cell towers" in space.
因此，该系统具有广泛的应用前景，可以应用于诸如安全通信、话音多路传输、卫星通讯、多媒体应用、蜂窝电话等多种语音处理的场合。
Thus the system has widely potential application at voice processing aspects, such as secure communications, voice multiplexing, satellite communications, multimedia applications, cellular telephony.
图5示出，系统305可以是蜂窝电话手持机，但是本发明的范围并不局限于此。
As shown in FIG. 5, system 305 May be a cellular telephone handset, although the scope of the present invention is not so limited.
蜂窝数字分组数据（CDPD）系统是基于模拟蜂窝电话网的无线分组数据通信系统。
The cellular digital packet data(CDPD) system is a wireless packet communication system based on analog cellular telephone networks.
该方法避免了对于自动大致位置系统(例如，使用蜂窝电话)的需要。
This approach avoids the need for an automated approximate location system (for example using cellular telephony).
该方法避免了对于自动大致位置系统(例如，使用蜂窝电话)的需要。
This approach avoids the need for an automated approximate location system (for example using cellular telephony).
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