扩频多址的英文

• cdma

• "扩"英文翻译    expand; enlarge; extend
• "频"英文翻译    frequent
• "多"英文翻译    many; much; more
• "址"英文翻译    location; site; ground; foun ...
• "扩频多址接入" 英文翻译 :    ssma spread spectrum multiple access
• "直接序列扩频多址接入" 英文翻译 :    dsssma dsss multiple access
• "跳频多址" 英文翻译 :    frequency hopping multiple access fhma
• "扩频" 英文翻译 :    ss spread spectrum
• "多址" 英文翻译 :    multiple address
• "混合扩频" 英文翻译 :    hybrid spread spectrum
• "扩频,扩展频谱" 英文翻译 :    spread spectrum
• "扩频调制" 英文翻译 :    spread spectrum modulation ssm
• "扩频接收机" 英文翻译 :    bandspread receiver
• "扩频通信" 英文翻译 :    read ectrum communication; ssc spread spectrum communication
• "扩频系统" 英文翻译 :    band spread system
• "扩频序列" 英文翻译 :    spreading sequence
• "跳频扩频" 英文翻译 :    frequency hopping spread spectrum fhss
• "直序扩频" 英文翻译 :    direct-sequence spread spectrum ds/s/ss
• "多址码" 英文翻译 :    code multiple-address
• "调频多工" 英文翻译 :    f-m multiplex
• "分频多工" 英文翻译 :    frequency-division multiplexing (fdm)
• "分频多工器" 英文翻译 :    frequency-division multiplex (fdm)
• "分频多路" 英文翻译 :    frequeney division multiple
• "分频多任务" 英文翻译 :    fdm
• "高频多普勒" 英文翻译 :    hf doppler

• Analysis of capacity in ds ssma communication system
  扩频多址系统的容量及性能分析
• Capacity and performance of mobile radio systems essentially depend on the choice of the multiple access scheme . a novel and promising wireless digital modulation / multiple access technique called multicarrier cdma is studied in this thesis , including reducing the peak - to - average ratio , which is one of its key techniques . mc - cdma is combination of ofdm and cdma , thus advantages of both techniques are exploited
  移动通信系统的容量和性能在很大程度上取决于多址方案的选择，本文主要讨论了在通信领域新兴的扩频多址方式一多载波cdma ( mc - cdma ) ，并对降低mc - cdma系统峰值平均功率比这一关键技术进行了研究。
• 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。