Goldsmith said that most second-generation, or 2G, cell phones use a combination of time division and frequency division.
戈德史密斯说，大多数第二代手机或2G手机采用时间划分和频率划分相结合的方式。
The technology of frequency division phase-locked frequency synthesis is introduced.
介绍分频锁相频率合成技术。
Orthogonal frequency division multiplex (OFDM) is an effective method to realize high data rate transmission.
正交频分复用(OFDM)是实现高速数据传输的一种有效方法。
Orthogonal frequency division multiplexing (OFDM) is a new modulation method for broadband mobile communications.
正交频分复用(OFDM)是为宽带移动通信而提出的新型调制技术。
A new method is proposed to reduce the peak-to-average power ratio of orthogonal frequency division multiplexing system.
提出了一种新的降低正交频分复用系统峰均功率比的方法。
A novel microwave six-port network orthogonal frequency division multiplexing (OFDM) demodulator is presented in this paper.
该文提出了一种新的基于射频六端口网络的多频带OFDM解调器。
A packet scheduling algorithm for mixed traffics was proposed in orthogonal frequency division multiple access (OFDMA) systems.
提出了一种基于正交频分多址接入系统的混合业务分组调度算法。
In this paper, a scheme of Broadband Power Line Communication based on orthogonal frequency division multiplexing (OFDM) is discussed.
本文探讨了基于正交频分复用(OFDM)的电力线宽带数据传输方案。
In the orthogonal frequency division multiplexing system, the frame synchronization plays an important role in the performance of system.
在正交频分复用系统中，帧同步对系统性能起到十分重要的作用。
To solve this problem, a new fingerprinting scheme based on the FDM(frequency division multiplexing) technique is proposed in this paper.
针对上述问题，提出了一种新的基于频分复用的数字指纹编码方案。
A non blind channel estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems in multipath channels was proposed.
提出了一种适用于正交频分复用通信系统的非盲信道估计算法。
Orthogonal frequency division multiplex (OFDM) is currently one of the most popular techniques for future broadband wireless communications.
正交频分复用(OFDM)技术是未来宽带无线通信中最流行的技术之一。
A symbol timing algorithm for orthogonal frequency division multiplexing (OFDM) systems with the cyclic prefix under wireless channels is proposed.
提出了一种新的无线信道下基于循环前缀的正交频分复用系统符号定时同步算法。
A new symbol timing and carrier frequency synchronization scheme applicable to orthogonal frequency division multiplexing (OFDM) system was presented.
针对正交频分复用(OFDM)系统提出了一种新的符号定时和载波频率同步算法。
Orthogonal frequency division multiplexing (OFDM) as the representative of the multi-carrier modulation technique proved to be one of the most promising.
以正交频分复用(OFDM)为代表的多载波调制技术被证明是最有前途的方案之一。
This article introduces the structure and frequency division of the HFC network, and gives a detailed analysis of the broadband access technology over the HFC.
文中介绍了HFC网络的结构和频谱分配，同时对HFC网络中的接入协议作了深入分析。
This paper describes a novel joint acquisition algorithm of timing and carrier frequency for burst orthogonal frequency division multiplexing (OFDM) transmission system.
提出了一种新的正交频分多路（OFDM）传输系统定时和载波频率捕获联合算法。
In DVB satellite transmission system used QPSK, using QAM cable transmission, terrestrial transmission using COFDM (coded orthogonal frequency division multiplexing) way.
在DVB系统中卫星传输采用QPSK，有线传输采用QAM方式，地面传输采用COFDM(编码正交频分复用)方式。
Partial transmit sequences (PTS) is a method with high complexity to reduce the Peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) system.
部分传输序列(PTS)是一种复杂度较高的减小正交频分复用(OFDM)系统峰均功率比(PAPR)的方法。
An optimal algorithm based on partial transmit sequences (PTS) for reducing the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing signal is presented.
提出了一种基于分割传输序列(PTS)改善正交频分复用信号峰值平均功率比(PAPR)的优化算法。
A method and apparatus for performing uplink transmission in a multiple-input multiple-output (MIMO) single carrier frequency division multiple access (SC-FDMA) system are disclosed.
公开一种在多输入多输出(MIMO)单载波频分多址(SC -FDMA)系统中用于执行上行链路传输的方法和设备。
Orthogonal frequency division multiplexing (OFDM), single carrier frequency domain equalization (SC-FDE) and multiple antennas technique are efficient techniques to achieve this goal.
正交频分复用(OFDM)技术、单载波频域均衡技术(SC -FDE)和多天线技术都是有助于达到这一目标的有效技术。
Orthogonal frequency division multiplex (OFDM) is suitable for Broadband-satellite mobile communication system with the advantage of robustness to muti-path and high bandwidth efficiency.
正交频分复用(OFDM)技术具有抗多径衰落，频谱利用率高等优点，适合于在宽带卫星通信这种无线环境下进行高速传输。
Orthogonal frequency division multiplexing (OFDM) can effectively combat the multipath fading of wireless channels and has become another hot point in the area of wireless communications.
正交频分复用(OFDM)技术能够有效的对抗无线信道的频率选择性衰落，成为无线通信领域的另一个研究热点。
A joint blind estimation method based on spectrum overlap for uplink interleaved orthogonal frequency division multiple access carrier frequency offset and timing synchronization is proposed.
提出了一种基于功率谱叠加的交织正交频分多址系统上行链路载波频偏和定时同步联合估计算法。
Aiming at the uncertainty of weights selection in the weighting orthogonal frequency division multiplexing system, a performance analysis method for carrier blind synchronization is proposed.
针对载波加权正交频分复用系统中权值选择的不确定性，提出了一种载频盲同步的性能分析方法。
Local structural entropy measure in frequency division is put forward to detect local discontinuities of seismic data, by the virtue of the instantaneous attributes based on wavelet transform.
本文基于小波变换具有多尺度多分辨率分析的优点，提出了在特定的小波变换分频瞬时属性上，利用局部结构熵算法来检测地震数据的局部不连续性。
The paper presents an efficient digital adaptive method compensating for nonlinear distortions caused by a high-power amplifier (HPA) in orthogonal frequency division multiplexing(OFDM) system.
本文提出了一种用于正交频分复用（OFDM）系统中由大功率放大器引起的非线性失真的有效的数字自适应补偿方法。
In the case that the signal-to-noise ratio and the number of times of superimposition are both rather low, the routine processing is not effective, and frequency division processing may be used.
在地震资料信噪比比较低，叠加次数比较低的情况下，常规处理效果不好，可以采用分频处理。
In the case that the signal-to-noise ratio and the number of times of superimposition are both rather low, the routine processing is not effective, and frequency division processing may be used.
在地震资料信噪比比较低，叠加次数比较低的情况下，常规处理效果不好，可以采用分频处理。
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