sub sampling 中文意思是什麼
sub sampling
解釋
二次進樣-
A sub - pixel image matching method on re - sampling and curve fitting
重采樣和曲面擬合的圖像匹配方法 -
It points out that the uwb signal can be reconnoitered efficiently with sub - sampling method. 3
說明了利用欠采樣方法對超寬帶線性調頻信號偵察的可行性。 -
A method independent of the orientation information is presented based on gray level similarity of a local area and its sub - samplings, computing the minimum size of the sampling with the grey level similarity, and eventually, the ridge frequency related the sampling size is obtained
摘要提出了一種獨立於紋線方向信息的方法，根據指紋整體與局部在灰度的相似性，求出具有該相似性的最小局部的尺寸，從而得到相應的紋線密度。 -
Through describing the space sampling process of ccd, the composing factors of modulate transfer function ( mtf ) of ccd integral sampling process are analyzed. meanwhile, an effective method to analyze the mtf of discrete sampling image system is put forward and is used to analyze and compare mtfs of sub - pixel image system and singlechip ccd system. as a result, definitions of ccd optical transfer function ( otf ) and optical mtf are presented and effective methods to measure ccd mtf are brought forward
本文通過對ccd器件空間采樣過程的描述，詳細分析了ccd積分采樣過程調制傳遞函數的構成要素，提出了分析離散采樣成像系統調制傳遞函數的有效方法，並用該方法分析比較了亞像元成像系統與單片ccd系統的mtf ，給出了ccd器件光學傳遞函數（ otf ）和光學調制傳遞函數（ mtf ）的定義，提出了檢測ccd調制傳遞函數有效方法，採用幾種不同測量方法測定了tdiccd的調制傳遞函數，並進行了比較分析。 -
And the program is designed to convenient for using. the functions of supervisor system include data sampling and showing in real time, data saving, data printing, data showing through curve graph, alarm by sound and lamp. the running control function is accomplished through communicating with sub - computer
監控系統的功能是實現數據的實時採集、實時顯示、數據保存、數據列印、曲線圖顯示、聲光及語音報警，並通過串列通訊口和下位機運行控制器通訊來實現運行的自動控制。 -
From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling
現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。 -
On the basis of fault classification, the output voltage waveforms are divided into sub - waveforms by the counts of rectifier voltage pulse waves, then the sub - waveforms are further classified by real time measurement of voltage, taken from sub - waveform sampling points ' average values and standard deviations, thus tin fruit waveforms can be described by pattern vectors
在對各種故障進行分類的基礎上提出根據整流電壓的脈波數將輸出波形分段，通過即時監測各波段電壓采樣均值和標準差，對各段電壓波形進行分類，從而將故障波形用模式向量表示。 -
Based on the analysis of solving ambiguity, the thesis presents several algorithms for estimating doa and an algorithm for estimating frequency by using methods of subspace parameter estimation under sub - nyquist spatio - temporal sampling condition
論文在分析解模糊思想的基礎上，給出空時欠采樣下運用子空間類參數估計方法估計波達方向的幾種演算法和一種頻率估計演算法，並從性能上進行了比較和分析。 -
The whole system analysis and sub - block design were proceeded to the function requirements. typical sub - blocks were analysed emphatically such as switch capacitor sampling / holding block, brightness control block, oscillator, thermal shut down circuit, ptat and bandgap reference etc. principle and operation of driver circuit are analyzed in the thesis
在電路設計中，結合開關電容采樣保持電路、 pwm / linear亮度控制模式以及恆流源驅動等理論給出設計依據，並根據功能需求進行了電路的總體結構設計和子電路設計。 -
Based on the analysis of those existing generative models, this paper conducts research on the local modeling based face recognition method, and obtains the following results : ( 1 ) proposes a densely local matching ( dlm ) based face recognition method, in which by densely sampling original images we can get several sub images, which reflect features of different local regions, and obtained the final matching similarity through syncretizing the results of local subimage matching similarity
本文在分析現有的產生式方法的基礎上，對基於局部建模的人臉識別方法進行研究，取得了以下研究結果: （ 1 ）提出了一種基於稠密局部匹配（ denselylocalmatching ，簡寫為dlm ）的人臉識別方法。該方法通過對原始人臉圖像進行稠密重采樣，得到反映不同局部區域特徵的子圖像，並最終通過融合局部子圖像匹配結果來得到最終的圖像匹配相似度。 -
The sub - cell technology was applied to save computational time and improve the rationality of sampling collision partner
應用了子網格技術，採用此技術可以減小計算工作量並且提高碰撞對象抽取的合理性。 -
2. using two different sub - nyquist sampling frequencies, the uwb signal can be received ambiguously
2 、研究了一種基於雙路欠采樣的超寬帶線性調頻信號的參數估計方法。 -
One new method that the uwb signal can be received ambiguously has been presented in this dissertation. furthermore, the sampling lfm signal becomes two sine signals with different frequencies based on two different delay processes. based on fft and remainder algorithm, the modulation rate and initial frequency of sub - sampling lfm signal are estimated precisely and unambiguously in negative snr
該方法通過在數字域對信號進行兩路不同的延時和余數定理實現欠采樣條件下超寬帶線性調頻信號的調制斜率和初始頻率的無模糊估計，在不降低參數估計精度的前提下，解決了欠采樣方法引起硬體復雜度增加的問題。 -
The monitoring station set up three atmospheric sampling sub - stations, three river water monitoring sub - stations and 27 traffic noise monitoring sub - stations in downtown lhasa and the upper, middle and lower reaches of the lhasa river
監測站在拉薩城區及拉薩河的上、中、下游設立了3個大氣采樣點、 3個河水監測點和27個交通噪聲監測點。 -
In addition, based on fft and remainder algorithm, the modulation rate and initial frequency of sub - sampling uwb lfm signal are estimated unambiguously in negative snr
該方法通過fft和余數定理解頻率模糊，解決了負信噪比條件下超寬帶線性調頻信號調制斜率和初始頻率的估計問題。
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