采样

A new algorithm of discrimination between inrush currentand fault currentof transformer is brought forward based on self- correlation analysis,which is to calculate self- correlation coefficients of variant periods after analyzing the sam pling data and then discrim inate between inrush current and fault current by using the m agnitudes of the calculated coefficients.

提出一种利用数字信号处理中的相关函数的基本概念，对采样数据进行分析，计算采样数据在不同时段上的自相关系数，利用自相关系数的大小来区分变压器励磁涌流和内部故障差流的新方法。

To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.

针对线性调频连续波雷达实现中急待解决的技术问题，文中提出并验证了线性调频连续波信号的综合动态测试技术，可以完成对线性调频连续波雷达发射信号的扫频线性度、扫频带宽和扫频斜率的综合动态测试，为衡量实际线性调频连续波雷达的系统性能创立了精确有效的测试手段；文中建立的非实时闭环动态校正技术使一部实际的线性调频连续波雷达的发射信号（时带积3×10〓）的扫频线性度从25%改善为0.1%（方均根线性度0.04%），优于国外已公布的80年代同类雷达中采用复杂的实时闭环动态校正环路所获得的实际结果（0.22%）；为了改善线性调频连续波雷达的实时性和分辨单元数处理能力，文中发展完善了实带通信号的采样定理并给予了严格证明，并在此基础上提出了欠采样等效混频原理，将其应用于实际线性调频连续波雷达的距离分段处理中；针对线性调频连续波雷达中系统背景干扰和回波动态范围问题，创立了系统背景综合抑制技术和频域动态范围压缩技术，并将它应用于实孔线性调频连续波雷达系统中，显示出它们的有效性。

The general speedup techniques that concentrate on expediting spatiotemporal coherence from one frame to the next usually uses simplified forms of 3D warp, that is, pixels in current frame are transformed to succeed frames. The approaches of synthesizing images by using optic flow or tensor are under the frame of 3D warp.

McMillan的论文[54]首次详细讨论了单个平面投影图象的3D warp坐标变换公式及其变换过程的兼容可见性扫描算法，本论文在前人工作的基础上，从单个采样图象变换、多个采样图象变换合成、反向变换以及增加镜面反射光等方面深入而系统地研究了3D warp变换进行场景建模和快速绘制的理论和算法。

As a result, improving the spatial resolution must sacrifice the signals power, at the same time the responding time of the optical detector and the velocity of the A/D card also must satisfy the certain term.

要想提高系统的空间分辨率，就必须以牺牲信号光功率为代价，同时光探测器的响应时间和A／D采样卡的采样速率也必须满足一定的条件。

Survey gain through this project, analysed use double base the RTK measurement technique of station double sampling, the system that can eliminate error of fiducial station coordinate effectively to nod planar coordinate to sampling is affected, disappear weak troposphere changes to be affected to what RTK tall Cheng measures randomly, make RTK planar coordinate measures the need that one class lead measures contented city thereby, make RTK tall Cheng is measured be close to or achieve the 4 precision that wait for leveling.

通过该项目测量成果，分析了采用双基站双采样的RTK测量方法，可有效消除基准站坐标误差对采样点平面坐标的系统影响，消弱对流层随机变化对RTK高程测量的影响，从而使RTK平面坐标测量满足城市一级导线测量的需要，使RTK高程测量接近或达到四等水准测量的精度。

The article shows a new kind of power controller of micro-satellite. The controller is composed of charge control. Discharge control, shunt control and the equilibration circuit. The output voltage is stabilized by an automatic circuit controlled by the PWM signal, which is produced by comparing the sampling value of the output voltage with the reference voltage. The application indicates that the system which insured the safety property of Li-ion battery series runs stably as well as satisfied the need of the load no matter in what situation.

在我国航天用锂离子电池组控制电路研究相对落后的背景下，设计一了种新型的微小卫星电源控制器；该电源控制器包括充电、放电、分流和均衡保护部分，充电、放电、分流部分通过将母线电压的采样值与预设参考值比较产生PWM信号对制电路进行自动调节，均衡通过采样和处理器计算比较实现；实验结果表明，该控制器工作稳定，确保了锂离子电池组工作安全的同时，很好地满足了各种情况下母线负载的需求。

At first the current sampling values pass through virtual digital CVTs. And then the voltage and current sampling values are processed by a low pass filter. According to the instantaneous value of transmission line voltage, the current instantaneous values of shunt reactors and P equivalent circuit capacitance can be calculated. After removing these two kinds of current, sampling value differential protection based on all components and fault component can be applied.

由线路电压瞬时值分别实时计算出流入并联电抗器和流入线路Π型等值电路两侧电容的电流瞬时值，再从线路每侧电流除去这两部分电流，用得到的新电流瞬时值作常规采样值差动和故障分量采样值差动保护计算。

In various embodiments, improved mechanisms for controlling texture sampling are provided that enable 3-D accelerator hardware to greatly increase the level of realism in rendering, including improved mechanisms for (1) motion blur;(2) generating anisotropic surface reflections (3) generating surface self-shadowing (4) ray-cast volumetric sampling (4) self-shadowed volumetric rendering and (5) self-shadowed volumetric ray-casting.

在各个实施例中，提供了用于控制纹理采样的改进的机制，它们能使3-D加速器硬件大大地提高呈现时的逼真度，包括针对下列各项的改进的机制：(1)运动模糊；(2)生成各向异性表面反射；(3)生成表面自投阴影；(4)光线投射容量采样；(4)自投阴影容量呈现和(5)自投阴影容量光线投射。

SAS Morpheus chokes to ask for the abbreviate of Sleep Apnea Syndrome integratedly. Potential of Satellite Potential satellite namely junior class status, and in order to use late part had better. Saw-tooth Wave toothed wave, dentate wave and dentate report activity are synonymous. Frequency of Samplins Frequency sampling is in the instrument of digitlization report physiology that uses now, the imitate signal that notes draw makes need to undertake sampling when digital changeover.

SAS睡眠窒息综合征sleep apnea syndrome的缩写。satellite potential卫星电位即晚成分，且以用晚成分为好。saw-tooth wave锯齿波，锯齿状波和锯齿状电活动同义。samplins frequency采样频率在现在使用的数字化电生理仪器中，把描记到的模拟信号进行数字转换时需进行采样。

The particle size distributions in Beijing collected in a normal weather period, a dust storm arrived from remote area and the local dust storm arising were measured by PIXE combined with a multi-stage sampler, and the change of the concentration of particulates with time was obtained by PIXE combined with a auto-step time sequence sampler.

用PIXE分析技术结合分级采样器测量了正常天气、远处沙尘暴到达时和局地扬尘起来时北京的大气颗粒物粒径分布谱，与时间序列自动采样器相结合，得到了大气颗粒物浓度随时间的变化，通过受体模型计算得到大气颗粒物来源及其贡献率。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。