This thesis carries a deep study on new techniques of wireless AD hoc networks and puts emphasis on multi-channel rate control and multi-channel switching.
本论文技术对无线自组织网络多信道数据速率控制和信道切换问题进行了深入的研究。
The rate-distortion theory is induced to the system model, and the mathematic formula between the feedback channel rate and the closed-loop MIMO capacity are deduced.
该文提出了在闭环MIMO容量研究中引入了率失真理论的研究方法,推导出了反馈信道速率和闭环MIMO容量之间的数学关系。
The main contribution of this thesis is: 1 this approach combines a simple but yet elegant concept that joint source-channel rate allocation with UEP to realize a general and effective JSCC system.
本文将编码码率分配技术和不等差错保护技术进行很好地融合,实现了一种通用、有效的联合信源信道编码传输系统。
A dynamic rate allocation method is presented which is based on the compression rate of image source coder, channel rate, channel characters and their influence on the distortion of progressive image.
该文根据信源编码压缩比、信道码率及信道特征对渐进图像传输失真的影响,提出一种基于最小图像失真的动态码率分配策略。
Segmentation can be looked at a number of different ways: by booking channel, customer type, rate type, etc.
市场细分可以以不同的方式看待:通过预订渠道分类、通过顾客分类、通过价格分类等等。
Time Warner Inc.'s HBO, the dominant pay-cable channel, has had a steady subscription rate of about 29 million for the past three years, according to SNL Kagan.
据SNL Kagan数据显示,过去3年有线付费频道老大哥时代华纳都有约2亿9千万的固定用户。
The forward-direction channel module includes analog channel, digital channel and the conversion of the digital signal's sample-rate.
前向通道模块包括模拟通道和数字通道的设计以及数字信号的采样率变换。
The EL1528 is a dual channel differential amplifier designed for driving full rate ADSL signals at very low power dissipation.
该EL1528是一种双通道差分放大器设计用于驱动全速率的ADSL信号在非常低的功耗。
We find that compared to original tent-map, multi-tent map has some advantages such as flexibility of data rate to satisfy different users' needs and adaptability to channel status.
相比原有的帐篷映射,多帐篷映射具有诸如能满足不同用户需求的灵活的数据速率,对信道状态的适应性等优点。
Due to the intense change of the transmission environment, the mobile communication system can not work in the optimal source coding rate and channel coding rate.
由于传输环境的剧烈变化,移动通信系统不能工作在最佳的信源编码速率和信道编码速率。
A key of multimedia communication is the video communication due to the contradictory between the enormous data of video information transmitted and low transmitted rate in channel of network.
大数据量的视频信息传输与网络信道低传输速率的矛盾,使得视频通信成为多媒体通信的关键。
Within a suitable range of temperature gradient, channel segregation is easy to develop when solidification rate is slow.
对适当范围的温度梯度,凝固速度较小时通道偏析易于形成。
Simulation results show that the proposed blind channel algorithm is of high separation precision, high right separation rate and stronger anti-noise-interference ability.
仿真结果表明,本文所提出的短波盲信道快速分析算法的分离精度和信道正确分离率都较高、抗噪声干扰能力强。
The overall design scheme, as well as its principle and characteristics, are presented. With powerful CPLD, the sampling rate and channel number of the system are programmable.
给出了可编程采样系统的整体设计方案,利用CPLD强大的硬件可编程能力实现系统采样频率和采样通道数的可编程设置,介绍了其原理和特点。
This paper gives the method that is effective in decreasing the roll Angle and roll rate in roll channel of the reentry vehicle.
针对再入飞行器滚动通道产生较大的滚动角及滚动角速率,给出了一种能够有效地减小滚动角和滚动角速率的方法。
For the characteristics of wireless channel such as time-variety and high BER, the rate adjustable RCPT code is good for channel coding.
由于无线信道的时变、高误码等特性,码率可变的RCPT码是比较理想的信道编码方式。
OFDM (Orthogonal Frequency Division Multiplexing) is a new modulation technology, it is suitable to high-data-rate transmission in the wireless transfer channel with multi-path transmission.
正交频分复用(OFDM)是一种新型调制技术,特别适合在多径传播的无线移动信道中高速传输数据。
The results of simulation show that RS coding and interleaving are fit for the channel of space laser communication, and can largely decrease bit error rate(BER).
计算机仿真结果表明,RS编码和交织技术非常适合空间光通信信道,能大大降低系统的误码率。
Analog and digital leading industry sampling rate combination allows each channel and multi channel measurement comprehensive analysis.
行业领先的模拟和数字采样率组合允许逐通道全面分析和多通路测量。
On the other hand, the dynamic fluctuated bandwidth, higher error rate and sharp delay jitter on wireless channel cause trouble to the real-time demand of streaming services.
另一方面,无线信道高误码率、低带宽、传输抖动剧烈和带宽不稳定等因素,对实时流媒体应用构成了挑战。
The main panel displays two channel sampling signal, the repeated projectile velocity and the firing rate.
主界面显示两通道弹丸过靶波形、弹丸速度及连发弹射频。
This paper provides a calculating method to acquire the optimal allocation scheme for various types of channel according to a certain given demand for lost call rate and total channels.
提出了一种计算方法,用来获得按照某种给定呼损量要求和总信道数情况下的各类型信道的最佳分配方案。
Based on unequal error protection with jointing JPEG2000 source and FEC channel coding, a novel optimal rate allocation technology is proposed.
为了提高传输质量,结合JPEG2000信源和FEC信道编码的统计特性,提出了一种基于非均匀错误保护的最优码率分配技术。
The probability density function, cumulative distribution function, average level crossing rate and average fade duration of each composite fading channel are analyzed, and some uniform expression.
给出了各种复合衰落的概率密度函数、累积分布函数、平均电平交叉率、平均衰落时间的统一表达式。
After polyphase filter frequency response was done, the channel out rate was fallen, and it was divided into multi-channel by the several digital filters based on the same archetype filter.
求出多相滤波器频率响应后,用多个基于相同原型滤波器的数字滤波器将其划分为多个信道输出以达到降低信道输出速率的目的。
At least one pilot channel output provides a basis to determine an estimated packet error rate.
至少一个导频信道输出提供确定估计分组差错率的基础。
We can simply use an interference eliminator in voice and low rate data user receiver to eliminate the self-interference produced by high rate data channel.
在语音和低速数据用户接收机中可以使用简单的干扰抵消器,用于消除一条高速数据信道产生的自干扰。
It can waken the multipath effect availably, eliminate symbol interference and fight against frequency select fading. Moreover, the channel utilization rate is high.
他能有效地对抗多径效应,消除符号间干扰,对抗频率选择性衰落,而且信道利用率高。
At last, the code error rate performances in different coding method and different channel environment are analyzed and compared.
最后对不同编码方法在不同信道环境下做了误码率性能的比较分析。
At last, the code error rate performances in different coding method and different channel environment are analyzed and compared.
最后对不同编码方法在不同信道环境下做了误码率性能的比较分析。
应用推荐