线性

In past, the processing mode as to the electro-hydraulic servo-system nonlinear problem is that using the Tais lux formula obtains the part linear pattern behind the series expansion at the stable state work-point. This kind of linear model is feasible to this system which work point is in small scope changing.

过去对于非线性问题的处理方式是在稳态工作点处进行泰勒级数展开后得到局部线性化模型，这种线性化模型对于系统在设计工况点附近小范围变化时是可行的。

In order to satisfy the real-time control of air/fuel ratio,this model was simplified based on two supposals as follows:(1) the intake air mass flow rate has a linear form with the product of the two established expressions,the throttle angle expression and the intake air pressure expres...

为满足基于模型进行空燃比实时控制的要求，基于以下两个假设对模型进行了简化：(1)假设进气流量与模型所建立的关于节气门开度和进气压力的表达式的乘积成线性关系；(2)充量系数和进气压力的乘积与进气压力成线性关系。

In this abstract setting, the scalars with which an element of a vector space can be multiplied need not be numbers.

一些引人注目的例子是集团的可逆线性映射或矩阵，和环的线性映射的向量空间。

The structures, materials and the clearance between cylinder and high pressure plunger piston which is used in the small, oilfree, high pressure field are discussed and analyzed.

在分析滑道变形的基础上，采用尺寸链方法综合分析了滑道体、活塞、气缸等的变形对线性余隙容积的影响，提出了减小线性余隙容积的措施。

The linearized model of the generator is set up, which takes the salient pole effect and the effect of the nonlinearation of the HVDC system. The changeable characteristics of each coefficients of the linearized model of generator and the coefficients affected by the nonlinearization of the HVDC system are simulated and analyzed.

建立了考虑发电机凸极效应和计及HVDC系统非线性影响的发电机线性化模型，并对线性化模型中的各系数的变化特性和HVDC系统的非线性对各系数的影响进行了仿真分析。

Due to the demand of the large angle attitude control, the unit quaternion is used to describe the spacecraft attitude in this thesis.

针对飞行器以姿控发动机作为姿控执行机构时的大角度姿态运动需求，本文采用单位四元数作为弹体姿态描述，考虑到姿控发动机布局对姿态控制的影响，直接以姿控发动机推力作为系统的控制输入，利用反馈线性化方法，将原非线性系统转化为一个六阶线性子系统和一个一阶内动态子系统。

Optical transfer function, a tool for evaluating dynamic resolution of airborne optoelectronic systems , is proposed in this paper, by which the effect of linear movement and random vibration of a carrier on image shift is analyzed , providing theoretical basis for calculating the tolerable limit of image shift caused both by line movement and random vibration .

本文首先提出采用光学传递函数作为评价机载光电系统的动态分辨率工具，并利用它具体分析载体的线性运动和随机振动对像移的影响，从而为计算线性运动和随机振动产生像移的容限提供理论依据。

In the last new years , as the demands of wireless communication system grows rapidly , the bands of microwave frequency had been saturated with various communication applications . To achieve wider spectrum for high-speed and high-capacity transmission , bands of millimeter-wave frequency are the solution of this problem . The advantage of MMW wireless communication systems is wider bandwidth comparing with microwave communication systems . To utilize the spectrum efficiently , many methods of complexly digital modulation is proposed . The more complex modulation , the higher linearity is required , and more various phase of signals are required to accomplish process of modulation . Therefore high-linearity and quadrature-phase modulator and demodulator are the emphasis of this thesis . For high level of integration , high performance and low cost , this chip is fabricated by the complementary oxide semi-conductor 0.13um process . A compact size of direct down-conversion and direct up conversion circuits will be presented in this thesis .

近年来随著无线通讯产业的蓬勃发展，微波频带已经趋近於饱和，为了追求更宽的频谱来达到更快传输速率及高资料容量的传输，宽频的毫米波频段提供了解决此问题的途径，毫米波无线通讯系统提供了相对於微波通讯系统宽频的优点，且为了更有效的使用频谱，各种不同且复杂的数位调变方式及方法被发表出来，越复杂的调变方式其所需的线性度越高，且需要更多不同的相位讯号来完成调变的过程，因此高线性度及四相位的调变及解调器将是此篇论文的研究重点，为了达到高整合性，高效能，及低成本的电路设计，我门利用互补式金氧半导体制程来完成此电路设计，因此一小面积的直接降频(Direct down-conversion)及直接升频(direct up-conversion)电路将在文中介绍。

By the analyses on the existing detector generating algorithms, we achieved the improvement of the linear time detector generating algorithm, which was widely used at present. The efficiency of the linear algorithm was improved by eliminating the reluctant detectors, and at the same time the improved algorithm was ensured to cover the nonself space as much as possible.

在分析已有的检测器生成算法的基础上，改进了目前使用最多的线性检测器生成算法，通过消除冗余的检测器提高了线性检测器生成算法的效率，同时还保证了改进后的算法能够尽可能多地覆盖&非我&空间。

The results show that the neutral temperature is 26.9 ℃ in modified temperature; the preferred sensation is -0.2 in summer; the partial pressure of water vapor is about 3 500 Pa when the humid sensation is neutral; the mean skin temperature is 33.2 ℃ corresponding neutral thermal sensation; the mean skin temperature and skin wetness degree are important in predicting thermal sensation and thermal comfort; there is a linear relation between the heart rate and thermal comfort, and between the blood pressure and thermal comfort in cooler environment but the blood pressure varies not obviously with thermal sensation in warmer environment.

结果显示，受试者的热中性温度为26.9 ℃；受试者夏季偏爱稍凉的热感觉（-0.2）；潮湿感中性对应的水蒸气分压力约为3 500 Pa；热中性对应的平均皮肤温度为33.2 ℃；平均皮肤温度与皮肤湿润度是预测热感觉与热舒适的重要参数；心率与热感觉存在线性关系，血压在偏凉环境下与热感觉呈线性关系，在偏暖环境下变化不大。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。