查询词典 sampling method

The method for determining a phase-noise spectrum comprises generating real complex samples, by digitally sampling a phase component and phase quadrature component of the input signal in baseband, determining ideal complex samples from generated real samples, establishing complex quotients from the real and ideal complex samples, generating modified complex quotients by assigning the value 1 to the complex quotients, and subjecting the modified complex quotients to a Fourier transform.

所述方法包括以下步骤：通过对基带中的所述输入信号的相位分量和相位正交分量进行数字采样，产生实际复数采样Areal(n(S100)；根据产生的实际采样Areal(n确定理想复数采样Aideal(n(S101)；根据实际复数采样Areal(n和理想复数采样Aideal(n形成复数商ΔA1(n＝Areal/Aideal；通过对所述复数商指定值1，产生经修正复数商B(n(S106)；以及对经修正复数商B(n进行傅立叶变换(S107)。

The qualitative methods employed in this study included pretest and posttest, concept map, interview and learning journal. Twelve students were chosen by a purposive sampling method from the class. According to their Raven's Standard Progressive Matrices Testresults, the students were classified into low level of 3, medium level of 6 and high level of 3 with even number of gender. They were interviewed individually about the teaching activities designed by the researcher for this study. The findings were summarized as follows

本研究先采方便取样，选取台北市内湖某国小五年级27位学童为研究对象，进行资料搜集与分析，另采立意取样，依据瑞文氏测验(Raven's Standard Progressive Matrices Test，以下简称SPM)，选取低推理能力3人，中推理能力6人，高推理能力3人，共计12人，男女各半；利用CMDA、前后测以及一对一多次的诊断性晤谈，深入分析 12名访谈对象在教学前、后，对「物质与热」单元的概念学习历程。

Based on the theory of vortex dynamics and fluidic impedance, the impacts of pressure-sampling position and joining pipe's frequency response on measured performances of the method were investigated.

应用旋涡动力学和流体阻抗法，分析了取压位置和引压管频率特性因素对该方法测量性能的影响。

This text with system research for premise, pass analysis domestic and international related city development of success experience, with more analysis and point sampling etc. statistics method for foundation, and usage of game theory, lord composition analysis, artificial intelligence nerve dollar network, Logistic square distance etc. mathematics tool, rightness post industrialization under the mode of the mineral resource city predominance industry choice carry on research.

本文以系统研究为前提，通过分析国内外相关矿业资源城市的成功经验，以比较分析和重点抽样等统计方法为基础，运用博弈论、主成分分析、逻辑模糊神经元网络、Logistic方程等数学工具，研究后工业化时期矿业资源城市主导产业选择问题。

The research adopts room test and outdoor sampling method together.

本项研究主要采用室内试验和野外样方调查相结合的方法来进行研究。

In the application of the stimulus-response method, the sampling position on the column, the algorithms proposed for parameter evaluation and the effect of measurement error are discussed in detail.

文中具体讨论了取样位置，数值解法及测量误差对参数估值的影响。

Objective To evaluate the diagnostic accuracy in terms of surface location, the needle, sampling method and the character of lesion. To investigate the complication of CT-guided percutaneous pulmonary biopsy with spring core biopsy needle.

目的 评价CT导引下应用弹簧芯状活检针经皮肺穿刺活检术中CT定位方法、穿刺针的选择、组织取材方法、病变特点等因素对本项检查诊断准确性的影响，探讨CT导引下应用弹簧芯状活检针肺穿刺活检术并发症的发生率、影响因素以及防治措施。

Methods By method of stratified random cluster sampling, a total of 1822 children and adolescents of Tibetan, hang and Han nationalities were recruited in A-ba area in Sichuan. Their finds height, sitting- height, knee-height and forearm length were measured. Growth and development of bone were analyzed.

采用分层随机整群抽样的方法，测量四川省阿坝州7~18岁藏、汉、羌族1822名男女儿童少年的身高、坐高、前臂长和膝高4项指标，并对其骨骼生长发育状况进行比较分析。

Etching method applied to large-quantity, variety, large flat thin metal material processing and metal product surface decoration process (semi-corrosion), but also applies to single-piece and small-batch sampling.

蚀刻法适用于批量大、品种多、大平面的薄型金属材料加工和金属制品表面工艺装饰，同时也适用于单件小批打样。

By shunt-wound method,we have made and calibrated a low-inductance sampling resistor.

采用电阻并联的方法，制作了小电感信号电阻。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样