单载波及多载波太比特光传输系统;
Terabit/s multi-carrier / single-carrier optical transmission systems.
与单载波系统相比,OFDM系统存在多个正交子载波。
OFDM systems contain more than one orthogonal sub-carrier, so it is different from single carrier systems.
在三大标准中atsc为单载波传输系统,能较好支持固定接收,峰均值比较小。
In three standards, ATSC is the single carrier transmission system, it is easy to support the fixed receiving, its peak average value quite being small.
文中估计了存在部份带宽干扰下系统的性能,并与单载波直扩码分多址系统进行了比较。
The system performance is evaluated in the presence of partial band interference, it is compared with that of a single-carrier DS CDMA system.
在单载波数字电视地面广播接收机中,可以采用对接收信号直接进行自适应均衡的方案。
For the single carrier Digital Television Broadcasting-Terrestrial receiver, the method of direct adapt equalization can be used.
提出利用正交频分复用(OFDM)多载波调制方式代替单载波调制方式对信息进行处理。
The OFDM (Orthogonal Frequency Division Multiplexing) multi-carrier modulation is used to process messages instead of the traditional single carrier modulation.
多载波信号的峰值平均功率比远远大于单载波系统,而且峰平比随着子载波个数无限增长。
The ratio of peak and average power in multi carrier system is much larger than that in single carrier system, and may grow unboundedly as the number of subcarriers grows to infinity.
在研究了合作博弈论的基础上提出了一种适用于单载波系统的一对一匹配博弈频谱分配算法。
Through research on cooperative game theory, a one to one matching game spectrum allocation algorithm which can be used in single carrier system is proposed in this paper.
介绍了单载波频域均衡技术的原理,与单载波时域均衡以及多载波ofdm系统进行了比较。
This paper introduces the theory of Single Carrier Frequency-Domain Equalization (SC-FDE), and compares the SC-FDE system with Single Carrier Time-Domain Equalization (SC-TDE) system and OFDM system.
与传统的单载波调制方式相比,OFDM技术可以有效地抵抗信道多径干扰,提高系统的传输速率。
Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.
本文重点对单载波频域均衡(SC -FDE)传输方案中的信道估计和频域均衡算法进行了研究。
In this paper, channel estimation and FDE algorithm in the SC-FDE system are mainly studied.
提供了一种实现改进残留频率误差和相位噪声估算的、适合于在高频通信系统中使用的单载波调制方案。
A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation.
采用正交分频多工而不采用单载波技术的原因为其用于处理高通道延迟扩散问题的等化器具有较低的复杂度。
Rather than a single carrier solution, OFDM is chosen as a result that its equalizer dealing with the problem of high channel delay spread has lower complexity.
研究了LS算法及其DFT改进算法,并将高斯白噪声信道中的信噪比估计方法引入到单载波频域均衡系统中。
LS algorithm and DFT-based algorithm were studied and signal-to-noise estimation algorithms in AWGN channel were introduced to SC-FDE systems.
介绍了单载波频域均衡(SC -FDE)系统以及SC - FDE所常用的频域块最小均方(FBLMS)算法。
This paper introduces the system of single carrier frequency domain equalization (SC-FDE) and the frequency-domain block least-mean-square (FBLMS) algorithm for SC-FDE.
它结合了OFDM和CDMA的优点,在高速数据传输时,其抗符号间干扰的性能明显优于传统的单载波cdma系统。
It combines the advantages of OFDM and CDMA, and its capability of combating ISI is obviously better than that of a single-carrier CDMA for the high data rate transmission.
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。
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.
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 multiplexing (OFDM), single carrier frequency domain equalization (SC-FDE) and multiple antennas technique are efficient techniques to achieve this goal.
近年来,多载波OFDM系统因其均衡简单且能有效地抗多径干扰而受到广泛地研究。随着研究的深入,发现单载波系统也有类似的均衡办法与优点。
Multicarrier Orthogonal frequency-division multiplexing(OFDM) Systems have been widely researched in recent years because of its good anti-multipath characteristic when easily equalized.
本文主要详细介绍了TD-HSDPA的主要技术、分析了TD-HSDPA与W-HSDPA在物理层上的异同,并在此基础上阐述了TD-HSDPA从单载波到多载波的演进。
This article introduced the main technology of TD-HSDPA, and compared the same points and differences between W-HSDPA and TD-HSDPA in the physical layer.
对于高精度测量和导航,GPS载波相位整周模糊度的快速求解仍然是一个难点,尤其对于单频接收机。
GPS carrier phase integer ambiguity fast resolution is still the key issue and challenge for high accuracy survey and navigation, especially for single frequency receiver.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
为了解决水文巡测设备中数据传输的可靠性,电力载波通讯中的单频阻波器技术被应用到巡测设备上。此法简单易行,稳定可靠。
Single - frequency resistance - wave technique has been introduced from power - driven carrier wave communication to patrol - measurement, thanks to its easy manipulation and stable reliability.
在分析似单差模型的基础上,提出了识别载波相位观测值中小于半周的粗差的方法。
On the basis of analyzing the similar single-difference model, the method of identifying the outliers, which is in carrier phase observations and less than half a cycle, is put forward.
然而在单频接收机中,当使用载波平滑代码算法时,代码-载波差异可以作为一个因数。
However, code-carrier divergence can be a factor when using carrier smoothed code algorithms in single frequency receivers.
其次,讨论了两跳单中继多载波协同通信系统的信道估计的问题,主要是基于辅助块状导频的方法;
Second, channel estimation algorithms of two-hop OFDM cooperative communication system with single relay are discussed, which are mainly based on block pilot.
针对水声通信网单信道MAC协议时延长、吞吐量低、数据冲突频繁的缺点,提出了水声通信网的载波侦听双信道mac协议。
As the large delay, low throughput and frequent data collision in single-channel underwater acoustic networks, this paper devises a dual-channel MAC protocol based on carrier-sense.
针对单信道中时频重叠双信号的载波频率估计问题,提出一种基于二阶循环累积量的载波频率估计方法。
Aiming at time-frequency overlapped two-signals in single-channel, this paper proposed a method to estimate carrier frequency based on second-order cyclic cumulants.
针对单信道中时频重叠双信号的载波频率估计问题,提出一种基于二阶循环累积量的载波频率估计方法。
Aiming at time-frequency overlapped two-signals in single-channel, this paper proposed a method to estimate carrier frequency based on second-order cyclic cumulants.
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