摘要
IS-95CDMA蜂窝移动通信系统具有频带利用率高、系统容量大、误码率低、抗干扰力强等特点,但其终端设备的误码率指标并未完全达到理论设计值。本文分析影响误码率指标的几个主要因素,如射频系统的参数设计差距、传播损耗和干扰等,提出相应的解决措施并通过实验测试对此进行了验证。
IS - 95 CDMA Mobile communication system is efficient in utilization ratio using, amplitude in the capacity of system, low in false code ratio and powerful in the anti - interference. But the false code ratio of its terminal does not achieve its theoretic designing target. This article analyses the main causes such as the difference between RF circuit designing parameter and its factual figure, transmitting attenuation and interference etc, points out and demonstrates steps to meliorate this situation.
出处
《重庆职业技术学院学报》
2004年第3期101-104,共4页
Journal of Chongqing Vocational& Technical Institute
关键词
扩频调制
干扰
误码率
spectrum spread
interference
false code ratio
