In the second chapter, it analyses the wireless channel, and expounds the MIMO channel characteristic, and then models the MIMO channel.
第二章在分析了移动无线信道特点的基础上,阐述了MIMO信道的特征并建立了数学模型。
This thesis pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of DVB system.
本文重点分析了DVB系统结构流程,核心技术及系统信道特性和参数。
Measurement system of PL channel characteristic is designed, and the characteristic of noise, transmission and impedance are analyzed based on the measuring result.
设计了电力线信道特性测量系统,根据测量结果对噪声特性、传输特性和阻抗特性等相关问题进行了分析。
In WBAN, human body which is considered as the carrier of all kinds of sensor nodes will influence the channel characteristic, and this makes the channel time varying.
在无线体域网环境中,人体作为各种传感器节点的承载体影响着整个网络中的信道特性,使得环境中的信道具有快速时变的特性。
Two simulation algorithms of realization channel characteristic are analyzed emphatically: shaping of slow fading with correlation and generation of frequency-selected multipath fading.
重点分析了实现信道特性仿真的两种算法:慢衰落的相关性整形和频率选择性多径衰落。
The experiment has studied the heat transfer characteristic inside U shaped variable cross-section channels with different rib pitches, The channel is the middle part of a gas turbine blade.
本实验选取航空发动机涡轮叶片中段内部冷却通道为研究对象,对不同肋间距的横肋变截面U型通道的换热特性进行了研究。
The frequency time selective fading resulted from multipath dispersion and Doppler frequency shift is an important characteristic of urban mobile radio channel.
由多径色散及多普勒频移造成的频率—时间选择性衰落是城市移动无线信道的一个重要特性。
The spatial characteristic of wireless communication channel is very complex. The fine simulation of the channel is helpful to design and develop wireless communication net.
无线通信信道的空间特性十分复杂,通信信道的精细仿真对无线通信网络的设计和开发有着重要的作用。
Based on the characteristic of multi-path frequency selective channel, the algorithm combines rapid table lookup and Lagrange-multiplier method to iteratively search the optimal bit allocation scheme.
算法根据多径信道选择性衰落的特性,结合查表法和拉格朗日乘子的混合迭代搜索法,最优地分配各个子载波的传输比特数。
Simulation results show that MIMO wireless system using polarization diversity is of excellent fading characteristic, and channel capacity is increased effectively.
研究表明,采用极化分集技术的MIMO系统具有良好的非相关衰落特性,信道容量得到显著提高。
In this paper, a laser induced air plasma channel antenna (PCA) for high power microwave weapon is presented, and the dispersive characteristic for normal modes of PCA is analyzed.
提出了一种用于高功率微波武器系统的光致大气等离子体通道天线(PCA),并分析了P CA所传播一般模式的传播特性。
The motions, deformation and heat transfer characteristic of a rising gas bubble through the liquid in a vertical channel are numerically predicted in this paper.
用数值方法模拟了竖直通道宽度对气泡在液体中的非定常运动、变形以及传热特性的影响。
A blind equalization algorithm based on constant modulus and sparse underwater acoustic channel is presented according to the sparse characteristic of the high rate underwater acoustic communications.
针对高速水声通信中信道的稀疏特性,提出了一种基于常数模准则的稀疏水声信道判决反馈盲均衡算法。
The channel of LEO satellite is different from wireless channels on the ground. Low SNR and large Doppler shift are the two characteristic of LEO satellite channel.
低轨卫星的信道与地面无线信道具有不同的特点,低信噪比与大多普勒频移是低轨卫星信道的两个显著特征。
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。
Satellite communication channel has the characteristic of power limited, band abundance, and powerful error correcting ability FEC scheme is needed.
卫星通信信道具有功率受限、带宽充足的特点,要求采用具有强大纠错能力的信道纠错技术。
However using the characteristic of satellite channel this paper put forwards the blind separation algorithm based on maximum entropy which can deduce the calculation too much.
该文利用卫星信道的特点,提出了基于最大熵的盲分离算法,极大地减小了计算量。
For years the change of silt movement characteristic, sedimentation problems, as well as their influence on port and channel increasingly draw the public's attention.
近年来,填海工程造成的区域泥沙运动特征的改变以及对港口、航道的影响愈来愈受到广泛的关注,泥沙淤积带来的问题尤其重视。
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。
The main channel bed will scour if sediment amount from tributary debris is less than that the main stream can carry and the river evolution exhibits the characteristic of mountainous rivers.
当支沟泥石流输入主河的泥沙量小于主河的输沙量时,主河河床将下切,并逐渐恢复山区性河流的特征。
Based on the characteristic of spectrum absorption of acetylene, an optical fiber detection system for methane gas is presented, which has reference channel and is for on line and real time detection.
基于乙炔气体的光谱吸收特性,采用一种带有参考通道的光纤乙炔气体在线实时检测系统。
Based on the characteristic of the chaotic secure communication system, transmitting the sending signal by the standard digital channel is proposed in this paper.
该文基于混沌保密通信系统特点,提出利用标准数字信道传输发送信号。
The term multicarrier modulation includes a number of transmission schemes whose main characteristic is the decomposition of any wideband channel into a set of independent narrowband channels.
一般多载波调制技术的主要特性是将一定宽频信道分解成为一组多个窄频信道。
The fourth part Study two kinds of new-type channel mode structure, namely the mode of monopolized shop and trussing up the mode of selling, analyse the structure characteristic of the channel.
第四部分研究了两种新型渠道模式结构,即专卖店模式和捆绑销售模式,分析渠道的结构特征。
Then people begin to study how to maintain performances of long channel devices when the characteristic dimension of MOSFETs reduced.
于是人们开始研究如何在MOS器件尺寸缩小的同时,仍然继续保持长沟道器件的良好特性。
The paper analyses the effective management model of channel in long period, characteristic and effect, and gives guarantee measures on how to improve the management effect in long period.
本文就京杭大运河河道长效管理的模式、特点和效果进行了分析,并提出了提高长效管理的保障措施。
The band limitation arises due to a characteristic of said channel digital representations.
频带限制源自所述若干通道数字表示的特性。
Trapezoid channel is a common form in hydrological project with characteristic of maximum influx at a certain time, its section designing requires a complex equation of higher degree.
梯形渠道的水力最优断面因为具有在过水断面面积一定时通过的流量最大的特点,是水利工程中一种常见的渠槽形式,它的断面设计需求解一个很复杂的高次方程。
Its characteristic is arteriovenous, with many small diameter of channel.
其特点为动静脉之间,有许多口径很小的通道直接相通。
Depending on the potential distribution in the conductive channel, the influence of changing channel width on the operation characteristic of OSIT is analyzed.
依据导电沟道内的电势分布,分析沟道宽度变化对OSIT工作特性的影响。
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