Global voice chat over short message service of Beidou navigation system

被引：0
|
作者：
Wei, Yijing [1 ]
Liu, Huiru [2 ]
Ma, Junkai [3 ]
Zhao, Yuting [4 ]
Lu, Hu [5 ]
He, Guiqing [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Elect & Informat, Xian, Peoples R China
[2] Beijing Electromech Engn Inst, Beijing, Peoples R China
[3] Naval Univ Engn, Coll Elect Engn, Wuhan, Peoples R China
[4] Ningbo Maritime Networks Com Ltd, Ningbo, Peoples R China
[5] Air Force Engn Univ, Informat & Nav Coll, Xian, Peoples R China
来源：
PROCEEDINGS OF THE 2019 14TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA 2019) | 2019年
关键词：
Beidou; Short Message Service; speech compression; emergency communication insert; QUANTIZATION;
D O I：
10.1109/iciea.2019.8834348
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The capability of short message service (SMS) of Beidou navigation system (BDS) is an advantage over the GPS. Text-only SMS hinders the applicability of BDS. The global voice chat has been designed & tested over the BDS SMS, which can transmit voices of 2 seconds in a single 78-byte message. Field tests have been completed between two sites far apart over 2,500 km, one in the city of Xi'an and the other onboard a ship in the South China Sea. Results have shown that the voice chat over the BDS SMS is available to any subscriber even he cannot type a single word. More than 90% of interaction time is saved and authentication security is enhanced. The global voice chat is an effective supplement to the outdoor emergency communication systems nowadays.
引用
收藏
页码：1994 / 1997
页数：4
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