采样点

基于地面采样点的MODIS等效反射率计算与分析

MODIS equivalent reflectivity calculation and analysis based on ground measurement sample point

在GIS技术支持下，利用地统计学方法系统地研究了基于村级土壤养分采样点实现村级土壤养分管理的可行性，并给出村级土壤养分管理的概念模型和实现方法。

The feasibility of village - level soil nutrient management is analyzed based on system study of soil nutrient sample point using geostatistics method supported by GIS technology , then village - level soil nutrient management conceptual model and its realization method is shown .

对采样点进行B样条曲线拟合，并获得了各采样点的匹配特征&曲率。

B-Spline curve fitting and curvature analysis are discussed in detail .

用三次B样条曲线拟合采样点列而获得脊线。

A spine curve was fitted to those re-sampled points with a cubic B-spline curve .

对基于采样点的3D曲面绘制与编辑技术进行了深入的研究。

A deep research on point-sampled 3D surface rendering and editing is made .

基于采样点倒置和BP网络的音频掩密算法

Audio information hiding algorithm using sample dots inversion and BP network

根据逆映射求取三维采样点，最后，实现了三次B样条曲面拟合。

Then with inverse mapping , new three-dimensional sampling points can be computed and cubic B-Splines surfaces are fitted .

啤酒行业废水COD分布及采样点位优化研究

Study on Distribution and Optimization of Sampling Sites with COD in Brewery Wastewater

通过实例介绍了MATLAB计算机软件具有的运用计算机工具处理综合水质模型的各离散数据、绘出采样点位置，以及处理模型各变量关系图和检验采样数据精确性及计算准确性等功能。

The MATLAB software can treat the dissociation data and draw the sampling sites in comprehensive water quality model .

AR谱不受信号经小波变换后采样点变少的限制，得到准确的故障频率值。

In spite of fewer samples , AR_spectrum can get accurate frequency values of the fault .

利用GIS对GPS采样点数据进行空间插值分析，获取地下水埋深和矿化度状况。

The situation of ground water depth and mineralization was got by spatial interpolation analysis based on the data of sampling points .

针对多载波CDMA系统的特点，该文提出一种基于采样点选择和矢量旋转的全数字定时跟踪方案。

A reduced-complexity all-digital timing tracking scheme suited for multi-carrier CDMA signals is proposed and studied .

基于采样点选择和矢量旋转的多载波CDMA定时跟踪方案

A Reduced Complexity Timing Tracking Scheme for Multi-Carrier CDMA Signals Based on Samples Selecting and Vector Rotation

由于采用指数分布的频域采样点，常数Q变换（ConstantQTransform&CQT）在音乐信号的音调分析中有着独特的优点。

Constant Q transform ( CQT ) has advantages in pitch analysis of music signals , due to its exponentially spaced center frequencies .

当采样点上的相对折射率不为1时，需要根据Shell定律重新计算光线的前进方向。

The direction of a ray is recalculated according to the Shell ' law when the relative refractive index is not equal to one at sampling points .

调查研究了长江口沿岸5个采样点软体动物体内Cu、Zn、Pb、Cr、Ni的含量。

The concentration of Cu , Zn , Pb , Cr , Ni in mollusc in five sampling sites along Yangtze estuary was studied .

利用采样点选择法实现DS-CDMA中频接收机的码片同步

Chip Timing Synchronization in DS-CDMA IF Receiver by Selecting Samples

谐波分析通常采用FFT算法，为了加快FFT的运算速度，需要对280个采样点进行插值处理。

Harmonic analysis usually adopts FFT algorithm , the 280 Sample points need interpolation management , which make FFT faster .

误差序列的计算可以在两采样点之间完成，可用廉价的DSP芯片实现电能质量的实时检测。

The computation of error sequence can be accomplished between two samplings , and the technique can be used for on-line applications with low cost DSP .

相同频率调制比和幅度调制比的情况下，对调制波信号的不同采样点分布可以得到不同的SVM波形。

Under the same amplitude modulation index and same frequency modulation index , different SVM waveforms can be derived from different sampling point distributions .

鄱阳湖水域DW采样点底泥重金属垂直污染分析

Heavy Metals Vertical Pollution Analysis of Sediment from DW Sampling Point of Poyang Lake Area

气相色谱质谱（GCMS）分析数据表明，八个采样点的水样中都含有一定数量的有机物，且有机物的种类和含量呈一定的规律。

The GC-MS datum showed that there were amount of organic matters in eight sample points , and the varieties and contents of organics show certain laws .

2通过对农场477个有效土壤采样点土壤有效养分以及pH值的常规统计，发现土壤养分属性并不完全呈正态分布，土壤有效磷和有效钙含量呈对数正态分布；

Conventional statistics of soil nutrients and pH value of 477 sampling sites showed the distribution of soil nutrient was not always normal . Available P and Ca had logarithmic normal distribution .

分析了科学计算可视化软件工具、曲面绘制算法和彩色图像分割算法的技术类型和发展趋势。（2）对基于采样点的3D曲面绘制与编辑技术进行了深入的研究。

The techniques styles and trends of scientific visualization tools , surface rendering and color image segmentation . ( 2 ) A deep research on point-sampled 3D surface rendering and editing is made .

从综合生态风险指数RI来看：各采样点生态风险等级为中等到极重水平。

According to the value of RI , the ecological risk level of each sample site was moderate to heavy levels .

2个采样点PM2.5浓度的周变化与季节变化均相似。

Weekly and seasonal variations of PM2.5 concentrations were similar between the two sampling sites .

最后，在骨架修正阶段，利用最佳匹配的方法来得到可靠段之间的连续性，而对不可靠段的修正则是通过对其相连可靠段的采样点进行B样条插值来进行。

In the process of correcting unreliable segment , a best-matched method is utilized to determine the continuous pairs of reliable segments . Finally , the unreliable parts of the skeleton are reconstructed by a cubic B-spline interpolation .

于2001至2002年在重庆市7个采样点采集了TSP，进行了水溶性无机离子分析。

Aerosol samples for total suspended particles ( TSP ) at seven sites of aerosol source samples were collected from 2001 to 2002 in Chongqing .

在所有采点，尘土样品的质量磁化率（X）与饱和等温剩磁（SIRM）均高于同一采样点的表土样品。

The mass susceptibility and saturation isothermal remanent magnetism ( SIRM ) of dust samples are higher than that of topsoil on each site .

阐述了利用统计方法获得模拟加工表面采样点和NURBS曲面插值构造加工表面；

First , a set of points generated from the machining process probability distribution , and a NURBS surface is interpolated to fit the generated points representing the manufactured surface .