扩频多址接入 meaning in English
ssma spread spectrum multiple access
Examples
- The direct - sequence ( ds / ss ) multiple access , also know as code - division access ( ds - cdma ) , has significant advantages in the areas of capacity , frequency planning , privacy , and resistance to multipath fading to cellular and personal communication system . it has been the important manner of multiple access in the 3rd generation mobile communication system
由于直接序列扩频多址接入技术(也叫ds - cdma )在蜂房移动通信系统中显示出的良好性能:系统容量大,频率规划简单,频率复用系数高,抗多径能力强,保密性,抗干扰能力强等, ds - cdma在第三代移动通信系统中已经成为首选的多址接入方式。