查询词典 channel

Lab model consists of three channels, L channel represents the brightness, which controls the brightness and contrast of a picture, a channel including color from caroba to gray to bright pink, and b channels including color from a bright blue to the grey to Browning.

Lab模式由三个信道组不败，L信道表现光度，它把持图片的光度和不不差比度，a通道包含的颜色从深绿到灰色到光粉白色，b通道包含的颜色从光蓝色到灰色到焦黄色。

Lab model consists of three tunnels, the L channel represents the brightness, which controls the brightness and contrast of a picture, a channel including color from caroba to gray to bright pink (high-brightness value), and b channels including color from a bright blue to the grey to Browning (high-brightness value).

Lab模式由三个通道组成，L通道表示亮度，它控制图片的亮度和对比度，a通道包括的颜色从深绿到灰色到亮粉红色，b通道包括的颜色从亮蓝色到灰色到焦黄色。

Lab model consists of three tunnels, the L channel represents the brightness, which controls the brightness and contrast of a picture, a channel including color from caroba to gray to bright pink (high-brightness value), and b channels including color from a bright blue to the grey to Browning (high-brightness value).

Lab模式由三个通道组不败，L通道表现光度，它把持图片的光度和不不差比度，a通道包含的颜色从深绿到灰色到光粉白色，b通道包含的颜色从光蓝色到灰色到焦黄色。

A part of auditory neurons of inferior colliculus has characteriatics of multi-channel response, and the frequency of channel equal to the characteristic frequency of neurons.

小鼠下丘部分听神经元具有单通道反应特性，且通道的频率等于神经元的特征频率。

This dissertation comprehensibly researches the performance of hybrid DS/FH spread spectrum communication systems, operating in a combined additive white gaussian noise , multiple access interference, and channel fading, particularly operating in hostile interference (partial band interference and multitone jamming). At the same time, the dissertation investigates performance of forward error correction coding and diversity technology against channel noise.

本文以此为背景，较为详细地研究了在信道中出现各种噪声干扰（高斯白噪声、多址干扰和信道衰落），特别是敌方的人为干扰（部分带宽噪声干扰和部分带宽多频干扰）时，混合DS/FH扩频通信系统的性能，以及前向纠错信道编码和分集技术对混合扩频通信系统信道出现噪声干扰时系统性能的改进情况。

The original Infomax is only applied in the instantaneous mixture and in the single channel blind deconvolution. This thesis applies the idea to blind sources separation in multiple channel convolutive mixture.

Infomax算法适用于瞬时混合情况下的盲分离和单通道盲解卷积问题，本文将Infomax算法推广到多通道卷积混合，对算法进行仿真，取得了不错的效果。

The foundation is ion channel activation on cell membrane and ion transmembrane movement, however, whether Ca2+-activated K+ channel involves in epilepsy induced by Coriaria Lactone is still unclear.

目的：以大鼠海马锥体神经元为靶细胞，了解马桑内酯在其致痫机制中对神经元钙激活钾通道的作用。设计：非随机对照实验。

By time-varying filtering, we realize the signal selectivity and interference suppression, especially for the signals with time-varying power spectrum. It is shown herein that conventional eigenstructure based methods are lower dimensional special case of the time-frequency subspace fitting method. The closed-form array response estimation algorithms for blind source separation in wireless communication is also developed in the dissertation by exploiting the data structure of second-order statistics of the array output in the presence of multipath. The proposed method achieves array response estimation with little constraint on signal property and propagation environment such as scatters or angular spread. Moreover, the array utilized here can be of arbitrary geometry and even uncalibrated. Since the closed-form solution is obtained, no misconvergency may occur and large amount of computation can be saved. The equivalent feed model and corresponding optimization designation are proposed to realize the downlink multi-user selective transmission. By coherent and non-coherent superposition of the electromagnetical field, multiple beams can be formed using a single array, so that each co-channel user signal is transmitted in each beam and will not interfered with each other. The proposed system scheme implements the digital beamforming and the channel allocation in the base band, therefore is suitable for the utilization of the radio software technology. The feasibility and effectiveness of the proposed model are proved by the RF experiment.

在窄带条件下，GSC－SSF方法还可以提高阵列的虚拟孔径，从而提高估计的性能；可以证明，Cyclic DOA 和SC-SSF方法可看作该方法的特例或近似； 3、提出了二维GSC－SSF方法和宽带谱相关DOA矩阵方法，利用信号的循环平稳特性解决了宽带条件下二维 DOA 估计问题，并具有阵元数少、计算量较小的特点； 4、提出了时频子空间拟合和宽带时频DOA估计算法，将联合时频分析的理论和方法引入到阵列信号的空间谱估计研究中，利用时变滤波实现信号选择性测向和干扰抑制，特别适合于谱时变信号；可以证明传统特征结构法可看作是时频子空间拟合方法的特例； 5、提出了多用户环境下阵列响应的估计方法——CARE方法，该方法对信号结构和传播参数（主要是散射源分布与角度散布）的约束较少，适用于各种几何结构的阵列甚至未校准的阵列，能够直接得到阵列响应的闭式解，因此计算量小、稳健性好，不存在收敛问题； 6、提出了针对多用户下行选择性发送的阵列等效激励模型、优化设计方法及其系统实现方案，通过空间场的相干叠加与非相干叠加使得单一阵列能够形成多个波束，并保证各波束内的用户信号各不相同且相互干扰最小；其系统方案具有在基带实现数字波束成形、信道分配并便于软件无线电实现的特点，其有效性已得到外场实测数据的证实。

The simulation results show that, compared with the conventional partially equispaced pilot design, the proposed scheme can provide much more accurate channel estimation when the channel length is large.

仿真结果显示，与传统的部分等间隔导频序列相比，由所提算法得到的导频序列可以在信道长度较大的情况下提供更准确的信道估计。

Firstly , we introduce the basic theory of the coding and decoding of the channel which describe the possibility of the errorless transmission in the channel existing interference .

首先从信道编码的基本定理入手论述了在有干扰存在的信道上进行无差错传输的可能性，这是纠错编码研究的理论依据与努力方向。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。