frequency division的例句大全

A power allocation algorithm is proposed for multi-cell orthogonal frequency division multiplex access ( OFDMA ) systems .

提出了一种用于 多小区 正交频 分多址系统 的功率分配算法.

Simulation results show that the proposed AWGN than the traditional orthogonal frequency division multiplexing ( OFDM ) scheme .

仿真结果表明,所提出的基于小波包的新型多载波调制系统的性能要优于传统的正交频分复用 多载波调制 系统.

Orthogonal Frequency Division Multiplexing ( OFDM ) has high spectrum efficiency and side-effect of multipath propagation.

正交频分复用 ( OFDM ) 技术由于具有较高的频谱效率,而且可以有效地对抗多径传输,已成为高速数据传输的关键技术.

Orthogonal frequency division multiplexing ( OFDM ) systems are very sensitive to the synchronization error.

正交步分 复用系统 对同步误差非常敏感.

A new admission control scheme was presented in packet-switched orthogonal frequency division multiplexing ( OFDM ) wireless communications.

针对基于分组交换的宽带正交频分复用 ( OFDM ) 无线通信系统,提出了新的动态呼叫接纳控制策略.

A space-time-frequency ( STF) coded orthogonal frequency division multiplexing ( OFDM) transmitter diversity scheme for fast fading frequency selective channels is proposed. The proposed STF-OFDM transmission scheme owns time diversity gain.

提出了一种基于空间时间频率（STF）编码的正交频分多路复用（OFDM）发射分集方案，这种传输方案可用于频率选择性快衰落信道。

According to the theory of orthogonal multiplex, frequency division multiplex ( FDM) and time division multiplex ( TDM) belong to orthogonal multiplex.

根据正交分割理论，现在流行的频率分割制（FDM）和时间分割制（TDM）都属于正交分割的范畴。

This paper proposes a scheme for temporary time locking by using FFT ( fast fourier transformer) in OFDM ( orthogonal frequency division multiplexing). The OFDM has a good BER in multipath.

提出了OFDM（正交频分复用）利用FFT（傅里叶变换）实时同步方式的方案，在多径环境下具有有良好的特性。

A symbol timing loop for orthogonal frequency division multiplexing ( OFDM) soft receiver was investigated and a digital interpolation timing loop for OFDM receiver was proposed.

提出了一种可用于正交频分复用（OFDM）软件接收机的全数字化内插同步环路。

Proceeding from eliminating the jump of rotor equilibrium position, the authers introduces a way to drive the motor by frequency division of applying high voltage and freewheeling current.

从消除转子平衡位置突跳运动的概念出发，针对常用的双电压驱动方式，提出了用分频加高压和分频泄放的驱动方式来消除振荡的新方法。

The failure frequency is related to power input rotating speed, or equal to the same speed frequency, or double frequency, or frequency division.

主减速器的每一种故障都有各自的特征频率，故障频率都与发动机的功率输入转速有关，或等于转轴的同转频率或倍频或分频。

Multiple Input Multiple Output ( MIMO) antenna is a typical spatial diversity technique, by combining multiple antennas space-time block coding with orthogonal frequency division multiplexing ( OFDM) forming space-frequency block coding, In multipath channel fading conditions, which also can get additional frequency diversity gain.

多输入多输出天线既是一种空间分集技术，将多天线中的空时分组编码与正交频分复用技术相结合构成空频分组编码，在多径衰落信道条件下还可以获得额外多径分集增益。

Two Effective Methods for Setting Frequency Division Factor to 8253 in a-c SR System

确定交流调速系统8253分频系数的两种有效方法

With the advantages of high frequency spectrum utilization efficiency and resistance to multipath interference, it is imperative for orthogonal frequency division multiplexing ( OFDM) technology on the application of mobile communication development field, in the future.

凭借高频谱利用率和抗多径干扰的优势，正交频分复用（OFDM）技术在未来移动通信发展领域中的应用势在必行。

Telemetering system of frequency division type

自动化遥控遥测类：频分（制）遥测系统

A novel parameter, cubic metric is introduced to weigh the character of signals. It analyzes the peak average ratio and complementary cumulative distribution curve of the Orthogonal Frequency Division Multiplexing signal used in an OFDM system.

介绍了一种新的用来衡量信号特性的参数-立方制系数（Cubic Metric），分析了正交频分复用（OFDM）信号的峰值平均功率比，立方制系数及互补累积分布函数（CCDF）曲线。

Development of Aluminum Electrolytic Capacitor for Audio Frequency Division Circuits

音响分频网络电路用铝电解电容器的研制

Frequency division multiplex telegraph system

频分多路复用电报系统

in the program of plc, technology of frequency division and matrix of switches is analyzed and solved. the one to one relationship between the output points and computer's power switches helps the system to control the power of each pc.

在PLC的编程中，采用了分频技术、n×m矩阵技术，建立其输出节点与被控对象&微机电源开关量之间的点对点关系，对微机电源开关进行控制。

the technology of frequency division phase-locked frequency synthesis is introduced.

介绍分频锁相频率合成技术。