point sampling 中文意思是什麼
point sampling
解釋
點采樣法-
The sampling rate of the system can reach 3704 sps, and the crank angle is 1. 94 degree per sampling point corresponding to the crank speed of 1200r / min. in the mean time, the position signal of the piston could be collected by photo - electricity switch
本研究首先設計和實現了摩擦力採集電子電路系統，裝置最大采樣率可達到3704sps ，在曲軸轉速為1200r / min時，對應曲柄轉角1 . 94度采樣點，並且可以採集用來確定活塞位置的光電開關的信號。 -
Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。 -
There are three pro - processing : fractionize algorithm ; average sampling point algorithm ; normalization algorithm
用到的預處理演算法有：均勻采樣點演算法、細分演算法、規范化演算法。 -
By sampling in different filter layer and analyse of water head damage in all sampling point, i draw a condusion about filter function of porcelain sand filter is superior to the general filters
通過濾層分層取樣，對各取樣點的水頭損失的分析，得出瓷砂濾料較一般濾料過濾性能優越的結論。 -
In this dissertation, we studied the tcra1101plus total station position system, which introduced the principle and characters of the instrument ' s closed loop tracking system. also we explained the cause of prism ' s position error and brought forward mathematic model to correct, moreover, the good results has been drawn form the expenriments. the kinetic survey system have been realized, which the sampling rate attain more than 5hz and the position precision can be less than 2mm on condition that targeted - point moving slowly at the velocity below 2cm / s. having finished the survey system to examine whether the fine - tuning stewart platform in good status, we have finished mensurating the position reference of the fine - tuning stewart platform and the offset of the prism
在此基礎上研製了多臺儀器在線控制高頻采樣動態跟蹤測量系統，采樣率大於5hz ，在跟蹤小於2cm / s低速運動目標時，測量精度好於2mm ；完成對饋源二次精調系統的檢測，包括對二次精調平臺位置基準的標定和觀測棱鏡偏心差的測定；設計不同動態測量實驗，對全站儀動態跟蹤的誤差來源和特點進行了分析；從實驗角度，對全站儀的測量時滯及其穩定性進行了測試分析，給出了定量的結果；比較了全站儀和計算機的內部時間系統，發現兩者存在較大差異。 -
Methods of sampling and test for halogenated hydrocarbons - determination of cloud point
鹵代烴取樣和試驗方法.第5部分:濁度測定 -
The border panoramas are created by constraining viewpoint motion to arbitrary convex region of a plane, and sampling cylindrical panoramas at border of the region point by point
邊界全景圖通過限定視點在平面上任意的凸區域內運動，並且在區域的邊界上逐點采樣柱面全景圖而構成。 -
It is different from concentric mosaics as follows. the sampling region of border panoramas can be arbitrary convex region, such as rectangle, square, triangle, circle or any other shape. and its sampling manner is sampling cylindrical panorama at border of the region point by point
它與同心拼圖（ concentricmosaics ）的不同之處在於，采樣區域可以是任意的凸區域，比如矩形、三角形、圓或者其它隨意的形狀，采樣方式是在區域的邊界上逐點采樣柱面全景圖。 -
Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrode pitch - determination of softening point ring and ball method
制鋁工業用炭素材料取樣與試驗方法.第1部分:電極硬柏油脂.第3節:軟化點測定 -
Judgment of the point of zero passage is the key factor involved, and a higher sampling frequency should be adopted when the method is applied on situations of large signal amplitude
其中過零點判定為關鍵技術，當用於信號幅值較大場合時應盡量提高信號采樣頻率。 -
It made use of randomly sampled one edge - point sampling randomly and locally searched two edge - points in an image and information of their neighborhoods to determine a candidate ellipse, then affirmed true ellipse for the candidate ellipse by affirming true circle for corresponding circle into which is transformed by the candidate ellipse
該演算法利用在圖像中隨機采樣到的一個邊緣點和局部搜索到的兩個邊緣點以及這三個點的鄰域信息確定候選橢圓，再將候選橢圓變換為對應圓，通過確認真圓來確認真橢圓。 -
Based on data cloud, which is measured from 3 - coordinate measuring machine ( cmm ) or so, an algorithm to search lopological structure from 3d unorganized points using envelopment - box technology is proposed in this thesis. based on this method, we searching neighbor points of sampling point. we also improve the max - min angle criteria to realize local triangulation, and then get the normal of sampling point from the triangulation
本文以測量得到的曲面數據點點雲為基礎，提出了一種基於包圍盒的自動尋找三維散亂數據點之間拓撲結構的方法，採用該方法尋找采樣點的鄰域結點，並對三角剖分中的典型優化準則?最小內角最大準則提出了改進，按照改進后的優化準則實現了采樣點的局部三角劃分，並進一步求解得到采樣點的法向量，依據法向量及鄰域拓撲關系在二次曲面的基礎上實現了散亂數據曲面重構中的數據點的自動分類。 -
When the given point set is a local separate sample of a closed surface set or an overall separate sample with known radius of sampling hole, the algorithm will reconstruct a correct result ; when the separate condition is not satisfied at some points, the algorithm will give result with corresponding holes
當所給點集是閉曲面集的局部分離樣本或已知采樣空洞半徑的全局分離樣本時，本演算法將給出正確的重建結果；當所給點集在某些樣點處不滿足分離條件時，演算法將給出相應的空洞以供參考。 -
A uniformly sampling algorithm of three - dimensional segmented quadrilateral boundary domain and an uniformly distributed sampling point optimized method based on force equilibrium are presented. then on basis of the above researches, the smooth b - spline surface fitting is implemented
提出了一種空間四邊界區域的均勻采樣方法以及基於力平衡原理的采樣點均勻分佈優化方法，實現了三角網格模型的重新均勻采樣和參數化。 -
During the growing season, the ground water tables at each sampling point are falling, but the total salinity of the soil does not change much
這是因為180 240cm以上土層是根系大量分佈的層次，群落中的植物均以鹽生植物為主，它們在生長過程中能夠吸收土壤中的大量鹽分離子而保持正常生長。 -
Sampling wastes from pipes and other point discharges
管道和其他地點排放的廢棄物的取樣 -
This thesis mainly researches on pattern of telecommunication management analysis and decision support in our fix - line telecommunication operation. first the construction of data warehouse is discussed, analyses the data of the base information, billing information and calling detail record of the customer, and then discuss the methods of data mining including defining the operation scope, sampling, data analysis, modeling and implementation we put focal point on the choice and design that the model of data mining, on the basis of the already studies of abroad and the actual needs of fix - line telecommunication company. three data mining models of our fix - line telecommunication operation are putted forward : customer value model, customer retention model, and customer segment model
本文對于固網通信業經營決策支持模式的探討和研究，是從企業級數據倉庫的構建出發，圍繞如何提高企業客戶細化和預測能力的問題，針對通信企業積累的大量客戶基本信息、客戶通話信息、客戶帳單信息、客戶繳欠費等數據，在數據挖掘方法論的指導下，通過業務問題范圍、選取和抽樣、探索型數據分析、建模和實施等步驟進行分析，闡述通信企業以數據倉庫為核心的數據挖掘模型選擇與設計的一般方法，提出我國固網通信運營業的三個數據挖掘應用模型:客戶分群，客戶流失和客戶價值分析。 -
The floating - point a / d conversion scheme was employed to increase the system ' s dynamic range. complex programmable logic device ( cpld ) was also used to perform the system ' s function such as data sampling trigger control and data storage control, etc. aduc812, a new type of microprocessor with full a / d converter, was utilized to fulfill the a / d conversion
在數據採集電路設計中，採用了浮點放大技術來提高系統的動態范圍；通過引入可編程邏輯器件來實現觸發控制、存儲控制；采樣過程中應用了時序重疊技術，從而實現了數據採集系統的流水線作業方式。 -
By an imaginary uniform sampling on the original triangle mesh, our algorithm makes the 3d point set using in icp algorithm not only approximatively uniformly distribute in the measured object surface, but also possess of more information of the object surface than classical icp algorithm
通過在三角形網格上按面積均勻分佈的假想抽樣，在沒有明顯增加計算復雜度的情況下，使得代入icp演算法的3d點集，不僅是近似均勻地分佈在物體表面上，而且更加充分地反映了被測物體的表面信息。 -
Health and safety in welding and allied processes - laboratory method for sampling fume and gases generated by arc welding - part 3 : determination of ozone concentration using fixed point measurements
焊接和相關工藝的衛生和安全.電弧焊產生的煙塵和氣體取樣的試驗室方法.第3部分:用固定點測量法測定臭氧濃度
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