樣本波形 的英文怎麼說

中文拼音 [yàngběnxíng]
樣本波形 英文
sampled waveform
  • : Ⅰ名詞1. (形狀) appearance; shape 2. (樣品) sample; model; pattern Ⅱ量詞(表示事物的種類) kind; type
  • : i 名詞1 (草木的莖或根)stem or root of plants 2 (事物的根源)foundation; origin; basis 3 (本錢...
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • 樣本 : sample book; specimen; advanced copy; sample; muster; scantling; instance; statistics
  • 波形 : [物理學] wave form; shape; wave pattern; wave profile
  1. In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method

    在數字式保護中,如果用差分代替求導將導致噪聲的百分比誤差隨著采頻率的提高而劇增,文對此進行了分析並提出了用分段條函數最小二乘法來計算電流的導數值,以便在提高采率的同時降低噪聲誤差的影響,並將其應用於基於32位浮點dsp的新型變壓器保護裝置。
  2. Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node

    首先,文中將三相變壓器兩相涌流差流的二次諧含量比和間斷角作為網路的輸入變量;其次,利用對原有bp網路訓練演算法基礎上的改進型演算法(即在計算次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率,與此同時隱含層神經元個數採用動態式) ,通過訓練使網路結構模型達到最優。
  3. On the base of a systematical analysis about the theory of mathematical morphology and neural network, we present that the two methods have many complementary aspects : mathematical morphology has good filtering characteristic, but has not good adaptability and study ability from samples ; neural network has outstanding properties of self - organizing and self - adapting, but has not good filtering characteristic of mathematical morphology

    文在分析了數學態學理論和神經網路理論的基礎上,指出了兩者在信息處理中具有很強的互補性:數學態學具有良好的濾特性,但適應性差,不具備從圖像中進行學習的能力;神經網路具有很強的自組織和自適應性,卻沒有數學態學良好的濾性能。
  4. Using the mfdfa method, with the sequence of yield of the daily closing quotation prices in shanghai stock exchange comprehensive index and shenzhen stock exchange component index during the period of may 3rd, 1991 to april 20th, 2006 as the sample, the author researches the fluctuation character of shanghai and shenzhen stock market

    摘要利用多重分消除趨勢分析方法,以1991年5月3日至2006年4月20日的上證綜指和深成指數日收盤價的收益率序列為,研究了我國滬深股市的動特徵。
  5. Typical estimation of kinematic parameters ( cruising speed, wave speed, wave length and frequency ) based on experimental data of the cruising specimens indicates there is significant correlation between cruising speed and other parameters

    在實驗觀測的基礎上,根據實驗態及運動規律,建立了背鰭/背臀鰭動推進模式的運動學方程。
  6. The adaptation processing includes linear prediction coefficient adaptation and adaptation of quantization step size for residual signals. based on g. 726, we adopt a huffman coder to make use of probability statistic of bit cascade covering n ( n 1 ) samples generated from adpcm, in order to further reduce the bit rate. ng is lossless entropy coding, the speech quality of our improved algorithm should be same as that of g. 726 standard

    我們的研究和改進工作包括:研究最優非均勻自適應量化器,及其自適應演算法;研究預測函數,以及函數零點、極點的自適應演算法;基於每n ( n 1 )個所對應符號的概率統計,對預測殘差量化值再進行huffman編碼,進一步降低比特率。
  7. It analyses the principle and methods of waveform reconstruction of the data acquisition module under double a / d parallel time - interleaved real - time sampling mode and random sampling mode. it also illustrates the flow of the monitoring software and the application of fpga technology in this design

    主要分析了雙a / d分相數字化實時采方式下和等效時間隨機采方式下採集模塊的工作原理及重建的方法,並簡單介紹了監控軟體流程及fpga在設計中的應用。
  8. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    文選擇適合電力系統信號分析的b條函數作為母小,對勵磁涌流和內部故障電流進行小分析,並設計微機型變壓器保護基配置,在以往間斷角原理鑒別勵磁涌流的基礎上,突破傳統精確測量勵磁涌流間斷角的方法,直接對信號小變換后的進行分析,建立一個新的鑒別勵磁涌流判據,該判據對硬體要求不高,可以在現有一般硬體平臺上實現;並編寫以b條函數為母小的小變換判據演算法程序。
  9. And then acceleration characteristic curve is concluded based acceleration track and point out its wave segment. combined with traffic accidents, the correlativity between accident and acceleration change is setup

    然後,根據路段的加速度軌跡圖,總結出彎坡銜接線的加速度特徵曲線,指出加速度特徵曲線的動段,來表徵路段的加速度變化幅度。
  10. Firstly, the paper, combining the characteristic of synchronous pulse bursts and inhibition with the modified pcnn model, presents a way of finding the foveation points in the images adaptively and effectively, and simulates the human vision system. secondly, pcnn is extended to pcnns, based on the properties of information couple and transmission, an algorithm that is used to fuse images of the same target got by several sensors to an image is presented to simulate the human vision system. thirdly, combining the properties of synchronous pulse bursts, capture, and transmission and competition of waves, the paper presents two ways of classification, one is an algorithm based on the properties of neuron to capture and inhibit to classify the data taking on any complex unlinear distribution robustly, the other is based on the restricted distance and modified of the former to remove the influence of inferior samples in classification ; fin ally, based on the accumulative difference pictures, and the forming and transmission of pcnn wave, selecting and controlling the direction of autowave by connecting the neighbouring neurons selectively, the paper presents a way to simulate the tracks of moving object and detect the moving direction

    首先結合pcnn的同步脈沖發放和側抑制特性,提出了基於改進型pcnn的圖像凹點檢測演算法,該演算法是一種自適應而有效的圖像凹點檢測方法,並且較好地模擬了人類視覺系統;然後,結合信息傳遞和信息耦合特性,將pcnn擴展成pcnns ( pcnn網路群) ,提出了一種基於pcnns的圖像融合演算法,能夠將多個傳感器獲取的同一目標的圖像信息融合到一幅圖像中,有效模擬了人類視覺系統;另外,結合pcnn的同步脈沖發放特性、捕獲特性和的傳播競爭特性,開拓地將pcnn用於模式分類中,提出了基於耦合神經元點火捕獲抑制特性的分類方法和改進的約束距離下的pcnn分類方法,前者可實現對空間中任意復雜分佈訓練的穩健非線性分類,而後者能夠消除訓練中刺點對分類的影響;最後,結合累積差分圖像思想、 pcnn成與傳播特性,通過各神經元之間連接取向來選擇與控制自動的流向,將pcnn用於運動視覺分析中的運動軌跡模擬及運動方向檢測。
  11. The inverted pwm changing electric current the technique is applied in the prototype model. the prototype model was tested and operated on spot, power factor could reach beyond 0. 95, the effect of following modulating voltage was better, the curve of factor of modulated voltage of exchanging systems changed following load rate was linear, the output of wave form was a flat and steady sinusoidal wave

    機採用了逆變式pwm變流技術,對其進行了現場測試與試運行,測試結果是電網側的功率因數可達0 . 95以上,跟蹤調壓效果良好,變流系統輸出調壓系數( k )隨負載率( p )的變化曲線基滿足直線關系,輸出呈平滑穩定的正弦
  12. The pulse width trigger circuit, trigger delay circuit are discussed. and a new kind of peak detection module which is implemented by verilog hdl in fpga and greatly enhances the performance of catching glitch is discussed in the dissertation. the waveform recorder function accomplished in the scopemeter can test, monitor slow analog signals and record the characteristic value of signals continuously for a long time

    文討論了脈寬觸發電路和觸發釋抑電路的實現,採用veriloghdl在fpga中實現了一種峰值檢測模塊,提高了示表的毛刺捕捉能力,設計的記錄( recorder )功能模塊能夠對輸入的模擬信號進行長時間連續不斷的采量化,並記錄數據和及時送顯示。
  13. This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively, intelligently by mfl ( magnetic flux leakage ) inspection method. from the practical demand, theoretical analysis and experiments or testing, the mfl inspection technology of pipeline or pipe defects are explained, summarized in detail in the whole paper, at the same time, the relationship between the mfl field distribution, the mfl signal shape and the defect geometry or severity, the analysis of the mfl data and the compensation of influencing the relationship factors, signal feature extraction, intelligent recognition of defect parameters and so on are studied systematically

    論文針對管道(鋼管)缺陷漏磁檢測定量化、智能化的難題,緊密結合檢測現場實際需要,通過理論分析和大量實驗,系統分析總結了管道(鋼管)缺陷漏磁智能檢測技術,並在缺陷漏磁場分佈以及缺陷漏磁信號與缺陷外參數間的關系、缺陷漏磁信號分析、漏磁信號影響因素補償、缺陷漏磁場特徵提取和缺陷外尺寸定量識別等方面進行了深入研究,主要成果和創新如下:引出磁偶極子模型近似分析常見缺陷漏磁場,針對磁偶極子模型的不足,將有限元方法應用到缺陷漏磁場分析,實現了常見管道缺陷漏磁場的模擬。
  14. So the research presented here is concentrating on digitization welding inverter used for co2 welding, aiming at improving the performance of welding power source. in this paper, we develop a waveform control system using tms320f2812 dsp and at89s8252 and establish a sample inverter on the basis of the dsp technology and the embedded system application. besides, the power system has the function of carbon dioxide gas shielded welding using double - slope waveform control method

    文結合當前dsp技術和嵌入式系統發展的最新成果,選用tms320f2812dsp和at89s8252單片機設計了co2焊逆變電源控制系統,組裝、調試了一臺逆變電源機,並通過編寫控製程序初步實現了基於短路電流雙斜率上升控制的co2焊的功能。
  15. Combining wavelet features and morphology features of cancer cells in shape and structure, a cancer - cell auto - recognition method is put forward. the experiments on hybrid examples of lymphocyte, meothelial and adenocarcinoma shows that the recognition ratio using this method is nearly 100 %

    文利用小特徵與態學特徵相結合,根據癌細胞態和摘要結構的特點,給出了一種胸液脫落癌細胞的自動識別方法,對由淋巴細胞、間皮細胞和癌細胞組成的混合的實驗檢測表明,該方法正確識別率接近100 % 。
  16. In designing a multi - structuring elements filter, combination rules and structuring elements of the morphological transform are determined automatically, and one kind of neural networks is taken for the filter, in optimzing structural parameters of the filter, three computation methods are designed respectively, by adopting some priori information in application fields to guide optimal structural parameter learning procedure, which are the bp adaptive learning algorithm, the heuristic genetic learning algorithm and the inductive simulated annealing learning algorithm

    在多結構基元濾器設計中,通過學習人-機交互選定的目標,自動確定態變換的組合規則及其結構元素,最終以神經網路式構成濾器。在結構參數的優化學習中,利用應用領域的先驗知識,分別設計了自適應bp學習、啟發式遺傳學習和引導式模擬退火學習等三種最優化計算方法。
  17. In the phase of training, it gets the sampling data from the wave files which were stored in the voice library by using the mci functions. then calculates the character vector ( 12 ranks of lpc and lpcc ) and trains them by clustering method, so we get the templates used by speech - recognition, this templates were stored in the template library. in the state of recognition, after calculating the character vector of input voice, we compare it with the character vectors of templates, and then find the best one or refuse it

    系統的組成模塊與語音識別系統的基構成模型基一致,在訓練過程中,通過調用mci ( mcimultimediacontrolinterface )提供的函數從語音庫中的文件中讀取采數據,分幀計算出由12維線性預測系數和12維線性預測倒譜系數構成的特徵矢量,並按照聚類的方法進行訓練,得到后續語音識別時需要的模板,存放于模板庫中。
  18. In this paper, we investigate speech waveform coding technology with emphasis on the g. 726 recommendation of itu - t. based on g. 726, we present a new algorithm. compared with g. 726, our proposed algorithm achieves the same perceptual quality with lower bit rate

    文結合當前商用市場對語音編碼的需求,研究了語音編碼技術,重點研究了itu - tg . 726建議,並在此基礎上探討了進一步降低比特率的演算法,使語音編碼演算法的音質和g . 726演算法的完全一,同時,採用文演算法的比特率低於採用g . 726語音編碼演算法的比特率。
  19. The framework of the instument is analyzed firstly, and the paper focuses on the ecg pre - amplifier design, the data acquisition module based - on isa bus with multi channel inputs is realized, the system software that can fulfill the data acquisition, display and communication is also designed. the two patterns of the network communication is introduced in detail

    文首先分析了智能網路型心電圖系統的結構,重點敘述了前置隔離型心電圖放大器的設計,研製了具有定時采功能的多通道數據採集系統,編制了集采、實時顯示、測量及網路通信等功能於一體的系統軟體。其中對心電圖儀網路通信部分的兩種模式作了詳細介紹。
  20. Input pulse signal can be directly transformed into micro - step linear motion by use of linear pulse motor, which have found wide applications in the digital linear servo systems with high positional accuracy and high reliability. taking slpmu - 025a, a two - phase hybrid lpm manufacturing by shinko motor company ltd, as an specimen, the study on the drive control system is carried out in this thesis, which contains : ( l ) three kinds of drive circuits are designed and comparison analysis in theory is done ; ( 2 ) introduction to at89c51 microchip as controller and special micro - step constant current driver, a great variety of running modes driver control are developed ; ( 3 ) experimental testing and theoretical analysis of current waveforms and displacement graphs and velocity graphs are carried out in case of different micro - step constant current driver

    文以日神鋼電機株式會社生產的兩相混合式直線脈沖電機slpmu - 025a為機,對直線脈沖電機的驅動控制系統進行了研究,內容包括: ( 1 )設計了幾種直線脈沖電機驅動器電路,從理論上進行了對比分析研究; ( 2 )用at89c51單片機作為控制器,採用專用的恆流細分驅動器sh ? 2h057m ,實現了開環控制方式下對slpmu ? 025a機各種運行方式的驅動控制; ( 3 )對不同細分數下恆流驅動的電流以及各種運行方式下的位移圖、速度圖進行了實驗測試和理論分析研究。
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