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。
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。
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。
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；
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。
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。
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。
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。
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。
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。
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。
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