It can be used in multipath channels to suppress multi-address interference and overcome multi-channel fading.
本文中提出的这种算法适用于多径衰落信道，能很好抵消多址干扰和克服多径衰落。
Channel delay estimation via pilot sub-carriers is used to provide accurate frame synchronization in multipath channels.
利用有限的导频信号进行信道延迟估计从而获得准确的符号同步。
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。
In this paper joint suppression of multiple access interferences and inter-symbol interferences by a CDMA array receiver is studied in multipath channels.
本文研究和分析了在一般多径信道条件下，CD MA阵列接收机对于多址干扰和符号间串扰的联合抑制。
Secondly, the performance of DSSS system under multipath channels and its influential parameters are systematically analyzed. This study is conducted in two aspects.
其次，本文系统地分析了直扩系统在多径信道下的性能和影响因素。
The clustering property is validated by using a Brownian bridge model of UWB multipath channels to simulate a corridor environment of two glass doors with metal grid inside.
采用布朗桥方法对有金属网格玻璃门反射的走廊环境中UWB多径信道的成簇特性进行仿真和分析；
In this paper the regular equations of ar and MA models built for multipath channels are derived, and an iterative algorithm of direct signal and multipath clutter cancellation is proposed.
文中推导了采用AR模型和MA模型对多径信道建模的正则方程，提出了采用混合模型消除直达波与杂波的迭代算法。
Based on stochastic bridge processes, an idea of stochastic beams is introduced, which can be used to exploit the propagation characteristics of Ultra-wideband (UWB) indoor multipath channels.
从随机桥过程出发引入随机波束概念，使用随机波束研究超宽带(uwb)室内多径信道的传播特性。
Results of simulation and analysis show that, in comparison with ML algorithm it is of better synchronization performance, and its performance is considerably raised especially in multipath channels.
仿真结果表明，与ML算法相比，该算法大大提高了系统的同步性能，尤其是在多径信道中的性能得到了很大提高。
The orthogonality, however, is impaired by multipath fading channels, thus causing multicode interference (MCI) and deteriorating the system's performance at high data transmission rates.
但是这种正交性却被多径衰落信道破坏，产生了多码道干扰，严重影响了系统高速传输数据的性能。
The fractal theory was applied to describe multipath fading channels, and a novel channel estimation scheme using fractal filter in the sense of minimum mean square error (MMSE) was presented.
本文将分形理论引入多径衰落信道的描述，提出了一种利用分形滤波进行最小均方误差意义下信道参数估计的方法。
It is important to enhance receiver performance by real time estimating the multipath parameters of underwater acoustic channels.
水声信道多径参数的实时估计对于提高接收机性能有重要意义。
The characteristics of the digital television terrestrial broadcasting (DTTB) channels with long impulse responses are analyzed, and the frequency domain multipath channel model is given.
本文分析了数字电视地面广播通信信道具有长脉冲响应的多径衰落的特点，从频域上表达了其多径衰落信道模型；
Fractal characteristic of multipath fading signal is studied in the paper which shows that multifractal dimension is a key parameter for describing the signal propagation in wireless channels.
本文研究多径衰落信号的多重分形性质，分析并指出了信号多重分形维数是描述无线信道传播特性的重要参数；
We propose a blind adaptive multiuser detection in multipath CDMA channels based on CMOE criteria.
提出了一种基于受限平均输出能量(CMOE)准则的用于多径CD MA信道的盲多用户检测器。
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。
In this paper, with Rayleigh fading the random characteristics of multipath time delay and Doppler shift in HF ionospheric channels is discussed.
本文在瑞利衰落模型下，研究了高频电离层信道中多径时延与多普勒频移的随机特性。
These parameters are difficult to obtain in multipath fading channels.
在多径衰落信道下，这些参数是很难获得的。
Stochastic bridge processes are employed to analyze the characteristics of UWB multipath propagation channels in the current research.
使用随机桥过程研究超宽带(uwb)多径传播信道。
A general space-time CDMA system model in multipath fading channels is built to study how to suppress both multiple access interference (MAI) and multipath fading.
通过建立了一般的空时CD MA系统模型，探讨多址干扰和多径效应的联合抑制问题。
In DS CDMA channels with multipath and multiple access interference, this paper estimates blindly the user channel with extended space time channel model to process the blind MMSE detection.
在多径多址干扰DS CDMA环境中，本文根据空时信号模型，用扩展的盲方法估计用户信道，从而进行盲mmse检测。
Transparent tone-in-band(TTIB) and feedforward signal regeneration(FFSR) is a technology to combat the effects of multipath propagation delay and doppler effect in wireless channels.
TTIB（透明带内导音）及FFSR（前馈信号再生）技术是一种可抗无线信道中多径时延及多谱勒频移引起的信号衰落的技术。
Orthogonal Frequnency Division Multiplexing(OFDM) is suitable for high rate data transmission in wireless channels because it can combat Inter-Symbol Interference and multipath fading efficiently.
正交频分复用（OFDM）技术具有很强的抗符号间干扰、抗多径衰落和时延的能力。并且保持较高的传输速率。
Multipath fading in the microwave line-of-sight (LOS) channels is the major source of. outage of a digital microwave communication system.
微波视距信道中的多径衰落是造成数字微波系统中断的主要原因。
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。
There are severe Multipath Effects, Doppler Spread and noise in underwater acoustic channels.
水声信道存在多径效应、多卜勒频偏及各种噪声干扰。
Blind equalization is an effective way to suppress the inter-symbol interference (ISI), which is caused by multipath fading communication channels.
在数字通信中，盲均衡是克服多径衰落信道导致的码间干扰的一种有效方法。
The increasing of symbol duration makes OFDM more robust against multipath transmission, whereas, it makes OFDM more sensitive to the time varying of wireless mobile channels.
符号时间的增加，使得OFDM系统具有良好的抗多径性能，但同时也使OFDM系统对于无线移动信道的时变性更加敏感。
The increasing of symbol duration makes OFDM more robust against multipath transmission, whereas, it makes OFDM more sensitive to the time varying of wireless mobile channels.
符号时间的增加，使得OFDM系统具有良好的抗多径性能，但同时也使OFDM系统对于无线移动信道的时变性更加敏感。
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