无线信道是移动通信的传输媒体,研究其特性并建立一个与实际传输环境相符合的无线信道仿真模型都有着十分重要的现实意义。
Researching its characteristics and establishing a simulation model which conforms to the actual transmission environment of the radio channel have a very important practical significance.
文章首先简要介绍了OFDM的基本原理,建立了系统仿真模型,对系统的同步和信道估计进行了分析。
Beginning with brief introduction for the basic principle of OFDM, this paper establishes the system simulation model and thereafter analyzes the synchronization and channel estimation.
其次重点研究了移动传播环境的频率选择性信道的建摸方法,并给出了模型的硬件实现结构和仿真结果。
Then it introduces the modeling method of frequency selection channel in mobile transmission environment. It also gives the model hardware implementation architecture and simulation results.
文章介绍了PR信道的模型,对算法的检测原理进行理论分析,并给出几种不同的部分响应信道下的计算机仿真。
This article introduced the model of PR channel as well as the detection principle with theoretical analysis and computer simulation of several different of PR channels.
根据北京地区移动通信无线电传播规律,在信号快衰落幅度服从m衰落的基础上,给出了M衰落波形信道的计算机仿真模型。
Based on the propagation regularity of land mobile communication in Beijing, this paper gives the computer simulation model of M-distribution fading wave channel.
本文总结了T1P1无线信道模型的特点及其适用环境,提出了一种基于T1P1信道模型的定位系统仿真模型。
After summarize the characteristic and suitable environment of T1P1 wireless channel model, a kind of systematic emulation model of localization is put forward based on T1P1 channel model.
本文从信道的统计特性出发,介绍了仿真研究所用的一种新的电离层宽带信道数学模型——ITS模型。
On the ground of the channel statistical characteristic, this paper introduces a new wideband channel model, ITS channel model, which is used by the emulation.
本文论述了应用于水声信道的级联tCM编码方案,并在水声信道模型中对其进行了性能仿真。
This paper describes the serial concatenated TCM coding method applied in underwater communication system, and simulates its performance in the channel model.
论述了电力线信道上脉冲干扰的特性,运用概率论推导出存在脉冲干扰时求解敖据帧长度的数学模型,并进行了仿真模拟验证。
This paper discusses the nature of the impulsive interferences with on the power line channels, and presents a model for finding a frame length and a simulated example using probability.
仿真实验结果表明,提出的分布式MIMO信道模型能够有效降低小尺度衰落相关性和阴影衰落相关性的影响。
The simulation result indicate that the proposed distributed MIMO channel model effectually reduce the impact of low fading correlation on the channel capacity.
然后在分析移动信道衰落特性的基础上,分析了多径瑞利信道的数学模型,并对基于这种模型的各种信道估计性能进行了仿真分析。
Then mathematic model of multi-path Rayleigh fading channels are presented based on the discussion of mobile fading channel characteristics. At last, the simulation results and analysis are given.
仿真结果表明,该模型与uwb系统信道的特征参数非常接近,能很好地仿真物理信道的参数。
It is shown that the channel model approaches well to the measured results of UWB channel and it can be used to simulate the parameters of the physical layer.
本文在分析TD _SCDMA系统下行链路基带离散时间传输模型的基础上,提出了一种下行链路信道估计的快速算法,并结合终端联合检测算法进行了计算机仿真。
In this paper a fast algorithm for channel estimation in downlink TD-SCDMA systems has been proposed by analyzing the discrete-time base-band transmission model.
在短波信道建模中,通常采用对高斯白噪声滤波来仿真多普勒扩展效应,这些模型的时域相关值与理论值相差较大。
In HF channel modeling, doppler spread effects are usually simulated by filtering white Gaussian noise. The signal correlation in time domain deviates far from the theoretical value.
采用该算法,在给定信道状态模型和信道噪声情况下,可有效地提高矢量量化器的性能,仿真实验结果表明该算法可获得比传统算法更优的性能增益。
The algorithm achieves a significant improvement of COVQ performance for a given noisy channel status model over other conventional VQ design methods, as confirmed by experimental results.
文中根据我们的研究背景,提出了油井中低压电力线信道的简化模型,并对油井中电力线信道特性进行了仿真研究。
According to our special application, a simplified channel model of the power line under the oil well is brought, and the simulation is done about the channel characteristics.
本文对这四种卫星移动信道进行了仿真运算,并将仿真数值与实测数据进行比较,从而验证了这些信道模型及其相关参数的有效性。
Through simulation computation for these four mobile satellite channels, the validity of the simulation model and corresponding parameters put through in the paper has been verified.
本文利用全阴影模型的研究结论,就实际陆地移动卫星信道部分阴影模型的仿真问题,拟合了模型参数与卫星仰角之间的关系。
These research results have been used to design the partial shadow model for simulating the same channel of LMS. The author fits the curves between the model parameters and satellite elevations.
通过计算机仿真验证了信道模型的特征,仿真结果表明了对于信道模型的理论分析结果的正确性。
Through computer simulation, the characteristics of the channel model are verified. Simulation results indicate that the theoretical analysis to the channel model is right.
在研究接收信号(含直射和方向性散射)复包络二阶统计特性的基础上,采用AR模型对信道进行仿真。
It explores the second order statistics of fading envelopes influenced by nonisotropic scattering environments with light-of-sight (LOS), and USES an AR model for channel simulation.
对于当前没有较完备的无人机通信系统实测数据时,进行无人机通信信道的统计模型建立和仿真等方面的研究具有重要意义。
The model built in this paper has great significance to performance simulation of the UAV communication channel when no measurement data are available.
用正弦和理论建立了信道的确定性仿真模型,并用等面积算法和等距离算法确定了模型的参数。
The paper establishes the deterministic simulation model using the theory of sine summation. The model parameters are determined using the Method of Equal Distances and the Method of Equal Areas.
通过将空间角度的概念引入到信道的仿真模型中,给出了一个完整的MIMO信道的仿真模型,并给出了相关的仿真算法。
This paper presents a whole simulation model for MIMO channel by introducing the concept of space Angle into channel simulation model, and the correlative algorithm is also presented.
其次,基于MIMO信道建模方法分析目前较典型的MIMO信道模型,提出MIMO信道模型准确性仿真验证方法;
Secondly, analyzing some current classical MIMO channel models with basic modeling methods, and offers the validation procedures of simulation of MIMO channel models;
其次,基于MIMO信道建模方法分析目前较典型的MIMO信道模型,提出MIMO信道模型准确性仿真验证方法;
Secondly, analyzing some current classical MIMO channel models with basic modeling methods, and offers the validation procedures of simulation of MIMO channel models;
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