Simulation shows co-channel interference and maximum multi-path delay spread have significant impact on the BER performance and PDMRC gives the best performance in most common environment.
仿真表明同信道干扰与最大多径延迟扩展对系统性能影响很大,在通常情况下采用PDMRC具有最好的性能。
The subject of this paper mainly focuses on the research of new algorithms and proposes the channel estimation principle explicitly: separate the estimation of multi-path amplitude and delay.
本文主要致力于研究新的信道估计算法,明确提出了将多径信道的时延估计和幅度估计分开的信道估计方案。
The tapped delay model of the multi-path frequency selective fading channels as well as the diversity receiver technique is introduced, and the principles of RAKE receiver are described.
本文首先讨论了移动通信信道的各种参数对信道估计的影响,介绍了频率选择性信道的抽头延迟线模型和分集接收技术,在此基础上阐述了RAKE接收机的原理。
This method is based on multi-delay modeling, SPICE and logic simulation. It provides an effective tool to design and analysis asynchronous data-path.
这种方法在进行性能分析时基于多延迟模型、SPICE和逻辑仿真,可以作为异步数据通路设计和分析的一种有效工具。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
OFDM是一种无线传播环境下的高速传输技术,适合在多径传播和多普勒频移的无线信道中传输高速数据。
The wireless propagation environment is described first: analyzing the small-scaled fading, including amplitude fading, multi-path time delay and Doppler spectrum spread.
在本论文中,首先对移动传播环境作了描述,特别是对小尺度多径传播造成的幅度衰落,多径时延和多普勒频移进行了分析;
The mixture matrix of multi-path channel can be estimated using a fast fixed-point algorithm, and then the delay information of channel can be obtained.
该方法采用固定点ica算法来估计多径信道的混合矩阵,从而提取信道的延迟信息。
The problems mainly exhibit to be multi-path propagation in the wireless fading channel, signal fading caused by the scattering and Inter-Symbol Interference caused by the long multi-path time delay.
其中主要为无线衰落信道中的多径传播和散射引起的信号衰落,以及大的多径时延而引起的符号间干扰。
The problems mainly exhibit to be multi-path propagation in the wireless fading channel, signal fading caused by the scattering and Inter-Symbol Interference caused by the long multi-path time delay.
其中主要为无线衰落信道中的多径传播和散射引起的信号衰落,以及大的多径时延而引起的符号间干扰。
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