分析校准

In particuler, for the first time, a rigorous method of calibrating the phase-shift of modulated photocurrent has been presented.

其中首次对调制光电流相移分析技术提出了一种严格校准调制光电流相移的方法。

The paper intorduces analysis and calculation for the uncertainty ofmeasutement on the basis of requirement of "'93 Intermational quidebook", according toclass jz theodolite standing disk index for the JJ G414-94 《 photology theodolite》 verification and calibration, in the automatic compensation.

介绍了按照JJG414—94《光学经纬仪》检定、校准J2级经纬仪竖盘指标自动补偿误差时，依据"'93国际指南"要求，对其测量不确定度进行的分析、计算。

The means of working out the table of quasi dynamic calibration of copper cylinders is presented.

介绍了测压铜柱准动态校准压力表的编表方法，分析了编表误差。

At its core Electrophysics is an engineering company with multi-disciplinary expertise in advanced infrared sensor signal processing, calibration techniques, radiometry, optics, embedded software development, PC application software development, industrial and mechanical design and production tooling.

美国Electrophysics 公司是世界先进的高性能红外相机、便携式测温系统和夜视图像解决方案的开发生产商。另外，该公司还研究图像获取、软件分析以及一系列应用程序所需的特殊附件。Electrophysics 所拥有的技术专家们可以随时帮您解决各方面的问题，尤其精通于红外传感器信号处理、校准技术、辐射线测定、光学、嵌入式软件开发、PC应用软件开发和机械设计等等。

SRM 1400,and 1486 are intended for use in evaluating analytical methods for the determination of selected major, minor, and trace elements in bone and in material of a similar matrix.

2389标准物质是在色谱仪器校准使用的17种氨基酸的解决方案，1400和1486标准物质用于评价分析方法对选定的主，次和痕量元素测定骨和类似基质材料的使用。

By using sine wave curve fit, a course of total distortoin measurement method of sinusoidal sources is presented.

同时 ，对评价方法进行了误差分析，该方法可用于正弦信号波形失真度的精确测量和计量校准

The method for determination of sorbicacid ,sourcess of uncertainty of measurement such as concentration of standard solution,parameters of standard curve,and soy sample dilution were analysed.

按照GB/T5009.29-2003中山梨酸含量测定方法，对测量结果的不确定度来源如标准溶液浓度、校准曲线参数、样品稀释等进行了分析，对各不确定度分量进行了评定和量化。

This paper discusses the Wheatstone bridge resistor precision measurement and calibration methods, and analyses the interpolation, and the substitution of system error.

本文探讨了惠斯登电桥精确测量和校准电阻的方法，并分析了内插法和代换法的系统误差。

With triangulation methods or suitable calibrations, distribution of the projected pattern is analyzable to retrieve the 3D shape.

与三角测量方法或适当校准，分布预测模式分析性检索三维形状。

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。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。