增益值

And we propose the algorithm using adaptive threshold and nonlinear plus arithmetic operator to solve the problem in enhancing image blocks.

首先介绍视频图像增强中的两种常用算法(直方图均衡化法及钝化算法)，并针对现有的算法对图像局部细节增强效果不足的缺点，提出结合自适应阈值图像选取和非线性增益算子的图像增强方法。

It is quick and precise in measuring and getting the analysis results,displays the parameters of phase and amplitude value of signals in imaging way,and has friendly man-machine interface,and all of these offer an intuitive and convenient means for the real-time monitoring and the analysis of the parameters of differential gain distortion and differential phase distortion in video chroma vector signals.

形象地显示信号相位、幅值等参数的方式和友好的人机界面的设计，为实时监控、分析色度矢量信号的微分增益失真和微分相位失真等参数，提供了直观、便捷的测量手段。

Since the output signal from fringing field dielectrometry sensors under a low frequency driving voltage are very low, the shield-drive, signal buffer and band-pass filter are adopted to improve SNR. With the signal gain and phase angle from a transform circuit, the complex permittivity of pressboard are obtained.

鉴于边缘场电容式传感器在低频正弦驱动信号作用下输出的感应信号非常微弱，调理电路采用驱动屏蔽方式进行测量信号缓冲，用带阻滤波器提高信噪比，并利用相应的变换电路求出电容系统的相位角和幅值增益，从而得到绝缘纸板的复介电常数。

The global convergence of the algorithm is proven Simulation results show the algorithm is feasible 3 A robust adaptive control method is proposed for the robots with constructed and unconstructed uncertainty The feedback gain of the controller is updated according to the estimated value of a function of uncertainty bounds The resultant control torque is smooth signal so that the chattering problem is avoided.

三、对具有结构型和非结构型不确定性的机器人提出了一种鲁棒自适应控制方法，其特点是根据不确定性界的函数的估计值直接修正反馈增益，所导出的控制力矩始终是光滑的，既能满足指出的跟踪精度，又不存在抖动问题。

It is also proved that the proposed algorithm could guarantee the closed-loop system to be uniformly ultimately bounded and the output converges to a small neighborhood of zero, so that ship linear path-keeping control can be implemented.

该算法保证了闭环系统的信号是一致最终有界的，使得系统输出收敛到零的一个较小邻域，从而能够实现船舶的直线航迹控制；而且，该算法不需要高频增益符号的任何信息，还解决了可能存在的控制器奇异值问题。

We proposed a example selection method based on the consistence, using two classifiers : Transductive HMM and fnTBL to combine a classification system to perform the Chinese text chunking task with the small-scale labled Chinese treebank and large-scale unlabled Chinese corpus. The ...

文中提出了基于一致性的co training选取方法将增益的隐马尔可夫模型和基于转换规则的分类器组合成一个分类体系，并与自我训练方法进行了比较，在小规模汉语树库语料和大规模未带标汉语语料上进行中文组块识别，实验结果要比单纯使用小规模的树库语料有所提高，F值分别达到了85 34%和83 4 1%，分别提高了2 13%和7 2 1%。

In order to emulate and evaluate the system performance, the signal-to-noise and probability of detection vs. the gain and threshold voltage of APD arrays were discussed in this paper.

为了仿真评估系统的性能，主要分析了APD阵列增益对系统信噪比和探测概率的影响，APD阵列的阈值电压对系统探测概率的影响。

It is observed that the threshold voltage, gain factor and current in linear and saturation region mismatch linear depend on the inverse of the square root of the device area.

由已经获得的经验知道，线性区和饱和区的阈值电压、增益及电流等参数的不匹配性均与器件面积的平方根成反比。

The structural of mechanism adopted double pipes feed-in with mixing machine, special weighbridge for reducing bond; The hardware circuit make use of the programmable amplifier AD8555 which amplify the weak sensor signal and bridge imbalance compensation and gain error, at the same time,32-bit microprocessor LPC2134 was used as the core of the hardware to deal with the messages and send order to the implement machine. Software design transmits materiel by stages and FIR filter was adopted to remove big errors and enhance precision.

机械结构使用双管螺旋喂料机加搅拌机构，特殊的称斗结构；硬件电路采用数字可编程放大器AD8555作为称重传感器微弱电信号的放大器，以便于补偿桥式传感器的失调和增益误差，同时采用32位单片微处理器LPC2134作为整个电路的处理核心，及时处理称重信息，并向执行机构发送命令；软件根据称重值采取分阶段喂料，并加入了FIR软件滤波，滤除了粗大误差信号，提高了称重精度。

It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave;in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWT, the influences of the Pierce's gain parameter, space charge parameter, and loss parameter on the start oscillation length and real starting asynchronous velocity parameter are also analyzed.

研究结果表明：改变聚焦磁场的幅值或周期来增加起振长度是可能的，而且不会改变基波的互作用条件。与此同时，对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化，以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时，起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。