查询词典 channel capacity

Under the assumption that the channel state information was available only at the receiver,the capacity of MIMO systems in Rayleigh fading channel was investigated on the basis of information theory. Three special expressions for the MIMO capacity over ergodic flat fading channel were derived.An asymptotic formula for MIMO systems with equal number of transmit and receive antennas in small SNR was also given. Simulation results show that this approximation is relatively accurate.

以信息论的观点为基础，在假设信道状态信息仅收端已知的情况下，采用等功率发射方案，研究了瑞利衰落信道下MIMO系统各态历经信道容量，推导了三种特殊MIMO信道的各态历经信道容量表达式，以及在小信噪比下等收发天线MIMO系统的容量近似公式，并通过仿真进行了验证，仿真结果表明该近似公式比较精确。

Transient simulation is carried out for the charge handling capacity of a CCD with channel width of 7 μm, followed by discussion on the effect of different channel junction depth and impurity on charge handling capacity.

采用此方法对一种沟道宽度为7μm的CCD信道电荷容量进行了瞬态模拟，对不同结深、不同沟道掺杂浓度对CCD电荷容量的影响进行了讨论。

According to introducing, this channel strategy adjusts the 9th city, almost throw the helve after the hatchet original " total generation adds cent to sell " means, and used compressed change, adjust measures to local conditions, those who strengthen area channel to sell capacity " area acting mode ".

据介绍，第九城市此次的渠道战略调整，几乎完全放弃了原有的"总代加分销"的方式，而采用了扁平化、因地制宜、加强区域渠道销售能力的"区代模式"。

This, the strategy of 9 cities channel is adjusted, almost throw the helve after the hatchet original " total generation adds cent to sell " means, and used compressed change, adjust measures to local conditions, strengthen area channel to sell capacity " area acting mode ".

此次，九城渠道的战略调整，几乎完全放弃了原有的"总代加分销"的方式，而采用了扁平化、因地制宜、加强区域渠道销售能力的"区代模式"。

For the problem that the suppression of co-channel interference and suppression of noise can't be balanced in signal-to-jamming and noise ratio maximization method for the linear precoding of multiuser multiple-input multiple-output downlink systems, an improved scheme that the term of noise variance is modified as a piecewise linear function is proposed, in which the balance between suppression of co-channel interference and suppression of noise can still be maintained even when the noise variance is a small value through piecewise modifying the term of noise variance, and thus the bit error rate and capacity of the systems are further improved.

针对多用户多输入多输出系统下行链路线性预编码的信干噪比最大化方法中，共信道干扰抑制和噪声抑制不能有效平衡的问题，提出将其中的噪声方差项修正为以噪声方差为变量的分段线性函数的改进方案。该方案通过对噪声方差项的分段修正，在噪声方差的值较小时依然能够保持共信道干扰抑制和噪声抑制间的平衡，从而使系统的误比特率性能和容量得到进一步提高。

Channel of our country inland river by the local processing of 80 time, those who grow 90 time is comprehensive build with calculated, total course of development of be open to navigation or air traffic of inland river channel achieved 122 thousand kilometer 2002, among them channel of above of 300 tons of class achieves 23510 kilometers, the Yangtse River of 8222 kilometers;, Heilongjiang mixes above of 1000 tons of class channel of Songhua River artery but all fronts be open to navigation or air traffic Beijing of; of barge of 1000 tons of class Hangzhou canal Su Na Duan Jiancheng countrywide example channel, restored north and south the action of waterborne main artery, volume exceeds dimensions of fleet of inland river of annual bottom of 200 million tons of;2002 156 thousand, 17.2 million carring capacity ton, shipping continues to keep large change,; of standardization development trend on the west the attempt that report of river, Hunan river, Jia Lingjiang boat joins, gain remarkable economy and social benefit.

我国内河航道由80年代的局部治理，发展到90年代的全面和有计划的建设，2002年内河航道通航总里程达到12.2万公里，其中300吨级以上航道达到23510公里，1000吨级以上8222公里；长江、黑龙江和松花江干线航道可全线通航1000吨级驳船；京杭运河苏南段建成全国样板航道，恢复了南北水运大动脉的作用，运量超过2亿吨；2002年年底内河船队规模15.6万艘、1720万载重吨，船舶继续保持大型化、标准化发展趋势；西江、湘江、嘉陵江航电结合的尝试，取得显著的经济和社会效益。

Fading is the primary factor which encumbers the increasing of wireless channel capacity and improving the quality of service.

华中科技大学，信息与通信工程，2009年，博士

After antenna array is meliorated, the channel capacity of multi-beam array is much better than that of the adaptive array antenna.

合理设计单元天线和阵列结构，其提高系统信道容量的能力远大于自适应智能天线。

An 1-D sediment mathematic model is developed in the second part. Techniques are suggested for some problems in calculations, such as the effective suspended load carrying capacity of the different bed material reach, the coefficient of suspended load carrying capacity, the recovering coefficient of the carrying capacity, the thickness of the mixed layer, the transport width of the bedload, bifurcation and confluence of main and branch channel, and the distribution of deposition and erosion along the cross section, etc. The numerical scheme of 1-D model is induced.

第二部分建立了一维泥沙数学模型，对计算中的几个关键问题提出了处理方法，如不同床沙组成河段的有效挟沙力、挟沙力系数、挟沙力的恢复饱和系数、床面混合层厚度、推移质输移带宽度、干支流入汇及分流问题、横断面冲淤形态及断面修正方法，导出了一维模型的差分格式。

Get the limitation of geography and economic atmosphere, the net swims the difficulty of hypostatic sale channel that operation business establishs independence in the country is greater, and besides Internet bar channel, similar mobile phone, phone depend on sexual channel has development latent capacity more.

受到地理以及经济状况的限制，网游运营商在农村建立独立的实体销售渠道难度较大，而除了网吧渠道以外，类似手机、电话等依附性渠道更具发展潜力。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。