Frequency-selective frequency hopping(FH) cosite d interference is a typical long impulse response interference.
跳频同址干扰具有频率选择性，是典型的长脉冲响应干扰。
Introduce the basic principles of OFDM and his particular mechanism used to counteract frequency-selective fading.
介绍了OFDM系统基本原理，以及OFDM系统对抗多径衰落的机制。
A combined channel estimation method of time-frequency-selective fading channels in MIMO-OFDM systems was proposed.
提出了一种适用于时间频率选择性衰落信道的MIMO - OFDM系统的组合信道估计方法。
This paper explores the decoding problem of the MC V-BLAST system under the downlink frequency-selective fading environment.
该文着重研究MCV - BLAST系统在下行频率选择性衰落环境中的解码问题。
The receiver performance can be greatly improved by precisely estimating frequency-selective fast-fading channel information.
频率选择性快衰落信道的精确估计对接收机性能的提高起着重要作用。
In this paper, a blind multiuser receiver for frequency-selective fading channel based on subspace tracking has been presented.
提出一种基于信号子空间估计，用于频率选择性衰落信道的盲多用户自适应接收机。
Therefore, system acquisition performance can be improved if diversity receiver is adopted for the frequency-selective fading channel.
因此在频率选择性衰落信道中，采用分集接收可以改善系统的捕获性能。
The problem of channel estimation and tracking for MIMO time-varying frequency-selective channels is investigated based on training sequences.
本文主要研究了基于训练序列的多输入多输出（MIMO）时变频率选择性衰落信道的估计与跟踪问题。
A new transmission scheme, which combines transmit preprocessing with multiuser MIMO downlink system over frequency-selective fading channel is proposed.
提出了一种适用于频率选择性衰落信道，新的下行多用户MIMO系统预处理传输方案。
The results of simulation show that space-time block code based on MIMO-OFDM is a highly effective technique against the frequency-selective random fading.
仿真结果表明，将空时编码技术与M IMO-OFDM技术相结合能有效地抵抗频率选择性随机衰落。
In modern shortwave communication systems, the channels are mostly frequency-selective, multipath transmission causes the coherent attenuation and symbol interference.
现代短波通信系统，其信道大多数具有频率的选择性，多径传输产生了信号的相干衰落与符号干扰。
Simulation results demonstrate the validity of the novel labeled-delay transmit diversity scheme and the performance of the blind estimation of frequency-selective channels.
仿真结果表明了上述标签延迟发射分集方法的有效性及其信道盲估计方法的性能。
In order to extend it to frequency-selective channels, a detection scheme for V-BLAST over frequency- selective channels, which is based on space-time MMSE criterion, is proposed.
提出了基于空时MMSE准则的频率选择性信道下V-BLAST检测方案，并给出了最佳均衡条件和两种自适应空时均衡算法。
OFDM has the ability of transforming the frequency-selective channel into a collection of parallel flat-fading subchannels and therefore can be adopted in MIMO systems to combat multi-path effects.
OFDM技术可以把频率选择性衰落的信道转化成一组正交的平坦衰落的信道，因此可将OF DM技术应用在MIMO系统中来克服多径衰落的影响。
The superficial layers are often frequency selective to transmission .
表层传播一般都有频率选择性。
The space-time channel estimation and multiuser detection algorithm for the uplink of multicarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel were investigated.
研究了频率选择性瑞利衰落信道中的同步MC-CDMA系统上行链路空时信道估计及多用户检测算法。
In addition, there will be frequency selective fading in the future broadband MIMO wireless communication systems, and the traditional high-performance equalizer will become extremely complicated.
另外在未来宽带MIMO无线通信系统中，通常面临频率选择性衰落信道，传统高性能均衡器就会变得异常复杂。
This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.
该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。
The simulation of error bit rate performance for multi -channel and frequency -selective Rayleigh fading is carried out, and the simulation results show that the system is.
对在多用户和频率选择性瑞利衰落环境下的下行链路的误比特率性能进行了仿真，其结果表明系统是可行的。
This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel.
该文研究了频率选择性瑞利衰落信道中的异步ds - CD MA系统盲多用户检测。
Generally the channel is both frequency selective and time selective.
一般的，信道既是频率选择性的又是时间选择性的。
In this thesis, we study equalization techniques for OFDM over the frequency selective fading channel and doubly selective fading channel respectively.
本文的研究内容就是频率选择性衰落信道和双衰落信道下的OFDM信道均衡技术。
In order to improve performance of this method over frequency selective channel, we average over several symbols.
并针对频率选择性信道采用了多符号平均改善算法性能。
These new resonant cells are greatly reduced in dimensions and very compact in structures, so it is possible to realize the lower frequency selective surface.
这类新型谐振单元尺寸大大缩小，结构紧凑，为低频段的频率选择性表面阵列的实现提供了可能。
V-BLAST (Vertical Bell Laboratories Layerd Space-Time) can be combined with OFDM to achieve high data rate transmission in frequency selective fading channels .
技术可以和OFDM技术结合以便在高的频率选择性衰落信道下提供高数据率的传输。
The superficial layers are often frequency selective to transmission.
表层传播一般都有频率选择性。
In this paper the performance of uplink in the cellular CDMA network, based on the reception of smart antenna, is analyzed in the frequency selective fading channel.
本文分析了在频率选择性信道中基于智能天线阵接收的蜂窝cd MA网络上行链路的性能。
However, for the wireless mobile communication systems, the radio channel is frequency selective and time-varying.
对于无线通信系统，无线信道不仅是频率选择性的，而且是时变的。
For integer frequency offset estimation, we analyze a sequence auto-correlation based algorithm, and extend the algorithm into frequency selective channel case.
对于整数频偏估计，分析了一种基于序列自相关的算法，并将该算法推广应用到频率选择性信道中；
The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。
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