查询词典 systematic sampling

There are also two characteristics of digital audio, sampling and quantization.

对数码来讲，也有两个基本的特征，一个是抽样，另一个是数量化。

Simple linear quantizer model can be used to analysis over sampling and noise shaping, and can be used to design modulator based on large amount of simulation, too.

简单的线性模型可以用来分析过采样和噪声整形的特性，也可以在大量仿真做支持的情况下，用来作为设计的近似模型。

These filter banks have quincunx sampling form and good interpolating characteristic, which can be applied in image decomposition and coding.

该滤波器具有五株排列的交错采样形式和良好的内插性能，适用於图像分解压缩。

Super mode and high mode are compared and superiority of quincunx sampling under super mode was verified.

本文分析比较了CCD高分辨成像模式和超分辨成像模式，并在理论上证明了超分辨模式下梅花采样的优越性。

The development of CCD imaging technique for remote sensing, especially Quincunx Sampling, promote largely image superresolution reconstruction methods.

随着遥感技术及其产业的飞速发展，遥感应用对于图像的空间分辨率的要求越来越高。

The basic idea is to divide an image into two descriptions with quincunx down-sampling. To tackle the problem of low coding efficiency in the traditional spatial domain multiple description image coding techniques, we propose a directional lifting technique to extensively exploit the correlations among neighboring pixels, in which the lifting directions are selected and organized based on the quad-tree partition.

基本思想是在空域将一幅图像按梅花形下采样为两个描述，为解决传统空域下采样多描述编码技术编码效率低的问题，提出能充分利用相邻像素相关性的方向提升小波变换，并通过四叉树的分割实现方向的组织和选择。

Methods:Stratified quota sampling was used to select four communities,representing different community health service models.

采用分层定额抽样方法，抽取 4个不同类型的社区，以入户调查和面对面访谈的方式共调查居民 4 17名，比较贫困居民和普通居民在卫生服务需求和利用方面的差异，并了解他们对家庭病床的认识。

Third, we conducted in-depth interviews of 8 persons in 9 times, who were sampled by quota sampling method.

最后以配额抽样法在研究场域针对调解人、召集人与公正人士共抽样8人做9次的深度访谈，得以架构出研究概念并整理研究发现。

A questionnaire survey was carried on among the Hangzhou private vehicle owners by quota sampling, in addition to individual interviews.

在两个月时间内共发放问卷700份，其中有效回收问卷为296份，有效回收率为42.3％。

The strategy of Quota Sampling was adopted. Subjects in the study were married female employees from the Bureau of the National Health Insurance.

研究者采取配额抽样策略，以中央健康保险局已婚女性员工为对象，合计有效问卷为300份。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。