CDMA2000 1x系统传输地震监测信号的性能分析  

Analysis on Transmitting Signals with a CDMA2000 1x System

作　　者：张正伟[1] 景晟[1] 杜瑶[1] 

机构地区：[1]四川省地震局西昌地震中心站,四川西昌615022

出　　处：《四川地震》2014年第4期27-30,共4页Earthquake Research in Sichuan

摘　　要：CDMA2000 1x系统通信容量大,具有频谱利用率高、传输质量好、保密性强、掉线率低、覆盖广等特点,适于对译码时延要求不高的数据传输业务。采用CDMA2000 1x系统实时传输地震监测信号具有丢包率低、电台发射功率小、总干扰电平低、系统的稳定性与可靠性较高的特点,符合地震信号传输的要求。CDMA2000 1 x is a high capacity system with excellent spectrum efficiency, transmission quality, securi- ty, coverage and low drop rate. It is ideal for high speed data transmission that has no strict limit on the decoding delay. Transmitting data with a CDMA2000 1 x system in real-time will decrease the drop rate, power consumption of the radio, and overall interference level and increase the stability and availability of the system, in compliance with the requirements of seismic signal transmission.

关 键 词：CDMA20001x前向信道 QPSK调制 相位 

分 类 号：TN929.533[电子电信—通信与信息系统]