The purpose of this thesis is to research on effect of atmospheric random channel to optical communication.
本文旨在研究大气随机信道对光通信链路的影响。
Considering Rayleigh fading channel is random channel, noncoherent detection is used for channel estimation.
考虑到瑞利衰落信道为随机信道，用非相干检测对信道进行估计。
While we obtain a great quantity of data in experiment, it presents the strong reliance to further establish atmosphere random channel model.
同时实验中获得了大量的数据，为进一步建立大气随机信道模型提供了有力的依据。
Therefore, it is very important to experimental measurement to far-field optical spot of atmospheric random channel, which can be passed by laser.
因此，对激光通过大气随机信道远场光斑的实验测量具有十分重要的意义。
Pseudo-random channel sequence and time synchronization ensure that each node knows the work information of surrounding neighbors which are in the one hop range.
包括伪随机信道序列、邻居表管理、时间同步、邻居发现以及节点发送和接收数据。
Each data packet is transmitted on a different frequency channel, following a pseudo-random hopping sequence determined by the device address of the master device.
在一个由主设备的设备地址决定的伪随机跳频序列的指引下，每一个数据包都经由不同的频率信道来传输。
This action triggers an event that sends a random number to the channel random-number.
此操作触发一个事件，将任意数字发送到信道random - number。
Small trees are placed using the green channel and big trees the red and they all have a random rotation.
小树用绿色通道放置，大树用红色通道，并且它们都设置一个随机旋转。
In digital terrestrial television system, there is much burst and random noise in the broadcasting channel, and burst noise is more harmfully than random noise.
在地面数字电视系统中，广播信道存在着突发噪声干扰和随机噪声干扰，而且前者的危害甚于后者。
Then it researches the different kinds of channel codec in DVB-H system, including pseudo random code, RS code, punctured convolutional code and interleaving.
论文重点研究了DVB - H系统中各个信道编码，包括伪随机码，RS码，压缩卷积码和内外交织的编解码算法。
RS(204,188)are capable of eight random error correcting which is applicable in DVB standard digital television channel error correction.
先分析了RS码的编解码原理，RS（204，188）码可以纠错8位的随机误码，适用于DVB标准数字电视的信道纠错。
However, the compressed video streams are vulnerable to the random noise in channel and generate errors, therefore, error concealment in video communication draw more and more attention.
但是，压缩后的视频码流极易受到信道随机噪声的干扰而产生错误，因此，视频通信中的错误隐藏技术越来越多的受到人们的关注。
A method of measuring correlation between signal pulses for the investigation of random time-variant properties of underwater sound channel is presented in this paper.
本文提出一个研究海洋声传输信道随机时变特性的脉间相关法。
Secondly, the uncertainty during the process of the spectrum detection is caused by the random of the channel in the Cognitive Radio network.
其次，在认知无线电网络中，由于信道的随机性，造成频谱检测过程中的不确定性。
Note that time switched transmission is not applied to the random acceSS uplink physical channel.
注意到时间开关传输不能应用于随机接入上行物理信道。
To design a gaussian random number generator used for channel simulation and coder performance test, high-speed universal random number and correlated stochastic series generators are studied.
为设计一个用于信道仿真和编码器性能测试的高速高斯随机数发生器，研究了适于硬件实现的高速通用的连续随机变量和随机序列产生法。
Coarse channel estimates are based on a time-domain correlation of a pseudo-random number (PN) sequence with linear interpolation for the fine channel estimates over an OFDM block.
该方法使用伪随机(PN)序列时域相关进行信道粗估计，并在一个OFDM块内进行线性内插得到整个OFDM块内的信道细估计。
The CTR series offers UL approved AC output ratings of 25 amps per channel at 600 VAC, AC or DC input control, zero voltage or random turn on, and IP20 touch safe construction with integral heat sink.
该CTR系列产品提供具有UL认证的交流额定输出功率为每通道25安培，在600伏交流电，交流或直流输入控制下，零电压或随机打开，具有IP20触摸安全构造和内部散热器。
Lastly, the random multi-access methodes which have priority to be chosen, according to the channel thronghput, average delay, stalility and cost, are proposed.
最后从信道吞吐量、平均时延、稳定性和实用性等性能综合考虑，给出了几种可优先选取的随机多址方式。
This paper is intended to introduce the random calibration method for vibration transducers with two-channel FFT analyzer.
介绍了采用双通道FFT分析仪进行振动传感器随机校准的方法。
Aiming at the large mount of calculation of the traditional algorithms for polarimetric power optimization of random target in arbitrary channel, a fast algorithm is proposed in this article.
针对现有分布式目标通道最优极化算法存在运算量偏大等问题，以算法的实用性为目的，在理论分析的基础上提出一种求解分布式目标通道最优极化的快速算法。
From the function the dual channel dynamic analyzer which is only used for single-point excitation can be simply extended to solving random multiple-input excitation.
应用该函数可以简单地利用双通道动态分析仪，扩展为能计算多输入多输出系统的传递函数，从而进行实验模态分析。
In this paper, we mainly discuss the mathematical modeling and performances of the Random Access Channel (RACH) of the wireless cells in WCDMA networks.
文章主要讨论了宽带码分多址(WCDMA)网络中无线小区随机接入信道(RACH)的数学建模方法及性能分析。
Key challenges on CMOS scaling down into nanometer regime are discussed, such as power supply and threshold voltage, short-channel effect, quantum effect, random doping distribution and wire delay.
本论文着重论述未来CMOS进入纳米尺寸的关键挑战，如：电源电压和阈值电压减小、短沟效应、量子效应、杂质数起伏以及互连线延迟等影响。
Both channel and echo response can be shortened at random with a single FIR equalizer by following the minimum mean square error rule.
使用最小均方误差准则，用一个FIR均衡器联合缩短信息与回波冲激响应，有效地缩短了回波和信道冲激响应长度。
Random wave impact pressures on the underside of the wharf deck are measured in a laboratory wave channel.
本文通过物理模型试验对不同接岸型式码头上部结构的随机波浪冲击作用进行了研究。
MS employ slotted-ALOHA random access protocol on access channel and transmits preamble one after another.
在随机接入过程中移动台采用的是时隙ALOHA的随机接入协议方案，并采用阶梯式发送接入试探。
Pseudo random sequence has broad applications in stream cipher, channel coding, and spread spectrum communication.
序列在流密码、信道编码、频通信等领域有着广泛的应用。
Pseudo random sequence has broad applications in stream cipher, channel coding, and spread spectrum communication.
序列在流密码、信道编码、频通信等领域有着广泛的应用。
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