很好的改善快衰落信道估计的准确性。
Thus the estimation accuracy can be improved distinctly in fast fading channel.
因此，在宽带衰落信道中可获得分集增益。
Therefore a diversity gain can be obtained in a broadband fading channel.
提出了一种新的快衰落信道非线性预测算法。
A new algorithm for fast fading channel prediction is presented.
在多径衰落信道下，这些参数是很难获得的。
These parameters are difficult to obtain in multipath fading channels.
分析了莱斯衰落信道中FSK信号的非相干接收机误码率。
The BERs of a noncoherent receiver for FSK signal in Rician fading channels is given.
数字图像在时间选择性衰落信道下传输，难以获得满意效果。
The received image is not satisfactory over time-selective fading channel.
讨论了莱斯多径衰落信道模型在两类常规测向技术中的应用。
This paper discusses the application of Rician Distribution multipath descent in two kinds of conventional direction-finding.
然后讨论了无线移动通信的传播环境，得到时变衰落信道的特点。
Then it analyzes the wireless mobile communication propagation environment and gets the characters of timing varying fading channel.
利用基扩展模型，针对平坦快衰落信道提出了差分空时调制方法。
Relying on basis expansion model, this paper presents a differential space-time modulation method for flat rapidly fading channels.
考虑到瑞利衰落信道为随机信道，用非相干检测对信道进行估计。
Considering Rayleigh fading channel is random channel, noncoherent detection is used for channel estimation.
同时具有时间和频率选择性衰落的信道，我们称之为双衰落信道。
The time- and frequency- selective fading channel is so-called doubly selective fading channel.
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。
The receiver performance can be greatly improved by precisely estimating frequency-selective fast-fading channel information.
为了提高算法在瑞利衰落信道下的性能，进一步采用了幅值加权的方法。
To improve the performance of the algorithm in the Rayleigh fading channel, amplitude weighted algorithm is adopted.
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。
Therefore, system acquisition performance can be improved if diversity receiver is adopted for the frequency-selective 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。
This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.
结果表明，平坦瑞利衰落信道中多用户检测算法的性能仍然优于传统检测算法。
It is concluded that the multiuser detection is superior to conventional detections in the flat Rayleigh fading channels.
模拟结果显示，分组码采用网格译码，可为移动衰落信道带来显著的性能改善。
Results show that system performance is greatly improved when this trellis decoding method of block codes is adopted.
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。
In this paper, a blind multiuser receiver for frequency-selective fading channel based on subspace tracking has been presented.
研究表明，该算法既能在AWGN信道中也能在多径衰落信道中完成频偏跟踪工作。
The study shows that the algorithm can complete frequency offset tracking in AWGN channel and multipath fading channel.
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 this thesis, we study equalization techniques for OFDM over the frequency selective fading channel and doubly selective fading channel respectively.
文中采用生成函数流图法推导出了衰落信道下FSASE算法平均捕获时间的闭式解。
The mean acquisition time of the FSASE method is derived by the generating function flow graph technique for the fading channel.
商分编码QAM由于无需信道估计和均衡，因此降低了在瑞利衰落信道解调的复杂性。
Due to no channel estimation required for Rayleigh fading channel, quotient coded QAM has lower receiver complexity.
研究了在时变瑞利衰落信道下，存在反馈时延的选择发送分集（STD）系统的性能。
The performance of selective transmit diversity(STD) with feedback delay is investigated under time-varying Rayleigh 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。
This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel.
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。
A new transmission scheme, which combines transmit preprocessing with multiuser MIMO downlink system over frequency-selective fading channel is proposed.
CD MA系统按信道模型的不同分为高斯白噪声信道和衰落信道、时变和时不变信道。
According to different channel models, CDMA systems can be divided into additive white gaussian noise (AWGN) channel and dispersive channel, time-variant and time-invariant channel.
作为实例，给出了高斯信道和衰落信道上的一些TCM信号序列的自由空间距离的计算结果。
As some examples, the results of some TCM signal sequence on additive Gaussian white noise (AWGN) channel and fading channels have been presented.
在多径衰落信道CDMA系统中，扩频码设计与联合检测为提高系统容量的两个重要手段。
Spreading code design and joint detection are two efficient ways to increase CDMA system capacity in multi-path fading channels.
在多径衰落信道CDMA系统中，扩频码设计与联合检测为提高系统容量的两个重要手段。
Spreading code design and joint detection are two efficient ways to increase CDMA system capacity in multi-path fading channels.
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