wideband cdma中文什么意思
宽带码分多址接入
- wcdma wideband cdma: 宽带
- cdma: 充值卡; 大众卡; 第32章; 第3 ...
- wideband: 多种频率的; 宽波带; 宽带，宽频带
例句与用法
更多例句： 下一页- Chapter 2 describes the characteristics of wireless channel , presents vector channel model for wideband cdma systems , and emphasizes on the characteristics of indoor wireless channel
第二章描述了无线信道的特点，给出了宽带cdma系统的矢量信道模型，并着重分析了室内无线信道的特征。 - The closed - form performance formulae of cck modulation are derived under awgn channel and rayleigh fading channel , whose validity is proved by simulations . multi - carrier wideband cdma architecture based on complete complementary codes spread ( ccc - cdma ) has high spectrum efficiency without mai theoretically , which meets the general requirements of b3g communications
研究了高速无线局域网ieee802 . 11b中的基带技术，特别是基于互补码扩频的cck调制，推导出其在高斯噪声信道和在多径衰落信道条件下的性能公式。 - With the downlink simulation model constructed , performance of wideband cdma under different radio propagation environment and vehicular speed is simulated . based on system model of mc ds cdma under flat fading channel with relative shifts of spreading sequences within 1 chip and frequency selective fading channel with arbitrary relative chip shifts , performance of multicarrier cdma system with go sequences under different radio environment is investigated
基于多载波直接序列码分多址在乎坦衰落信道中序列偏移小于1个码片及在频率选择性衰落信道中偏移任意个码片的系统模型，本文还分析了采用广义正交序列的多载波码分多址系统在不同无线传播环境下的性能。 - Future mobile communication will be wide - band multimedia communication . the adoptive technologies include wideband cdma , software radio , intelligent antennas , ofdm ( orthogonal frequency division multiplexing ) and digital processing device . ofdm and software radio are both the charming technology for future mobile communication
移动通信的发展趋势是宽带多媒体通信，所采用的技术包括宽带cdma 、软件无线电( softwareradio ) 、智能天线( intelligentantennas ) 、正交频分复用( ofdm )和数字处理设备。
