波形選擇器 的英文怎麼說

中文拼音 [xíngxuǎnzhái]
波形選擇器 英文
mode selector
  • : 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...
  • : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
  • : 擇動詞(挑選) select; pick; choose
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 波形 : [物理學] wave form; shape; wave pattern; wave profile
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同段的數據質量、段組合進行了評價,提出了適用於荒漠化監測的基本集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體狀的分類方法在很大程度上能夠消除由於傳感、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象,對于譜相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的段是進行荒漠化監測的主要特徵段,這些段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。
  2. Blank detail specification. fibre optic branching devices. type : non wavelength selective transmissive star

    空白詳細規范.光纖分路件.型號:非的傳輸星
  3. Secondly, the composition and function of expander board is introduced, the paper describes a detail developing process of selecting component, design interface circuit, protract pcb with protel and design pci interface logic and user ' s logic. with ahdl and max + plus. in addition this paper discusses how to debug pci board, and give the simulation waveform and the result of debug. on the base of all functions is ture, this paper introduce the config registers and memory of bu - 61580, realize the interrupt function and communication based on mil - std - 1553b

    首先分析了擴展板的組成、功能,對pci介面邏輯和擴展板的內部邏輯進行詳細設計,並根據其資源要求進行,然後使用protel工具進行電路板的製作。另外,本文還介紹了擴展板的調試方法,給出了邏輯模擬和調試結果。在此基礎上,本文闡述了協議晶元的配置方法,實現了1553b通訊擴展板間的通訊及中斷功能,達到了開發技術指標。
  4. The hardware is composed of the selection of sensor, magnifying circuit, filter circuit of multi - plot tracing, shaping circuit, demodulation circuit, peak value holding circuit, and voltage comparing circuit

    硬體部分包括傳感、放大電路、多點跟蹤濾電路、整電路、檢電路、峰值保持電路、電壓比較電路。
  5. Compared with traditional mold oscillation device, this system can conveniently change oscillation wave and alter on - line oscillatory frequency and magnitude according to the continuous casting technological requirements

    與傳統的結晶振動裝置相比,該系統能夠根據連鑄工藝要求方便的,並在線改變振動頻率和幅值。
  6. The increasing of single channel capacities and evolution of optical networks topology, from simple point - to - point to intelligent optical networks, call for strict demands to optical filters. in this paper, the crucial technologies of optical filters such as interleaver, optical digital filter, fused biconical taper all - wave coupler as well as polarization - pump combiner have been studied experimentally and theoretically, which include : 1. a new process, cascaded fbt ( fused biconical taper ) with precise control as well as strict interference arm length difference, is proposed for the first time to our knowledge

    單通道速率不斷提高以及網路拓撲由單一的點對點傳輸向可上下載的環網和可動態長路由的智能型格光網路演進,對光濾的常規性能指標、時域特性和動態可調諧特性提出了更加苛刻的要求,鑒於此,本論文全面研究了全光纖熔錐型奇偶交錯濾技術、數字光濾技術、基於g - t全通濾的奇偶交錯濾技術以及熔錐型全耦合和偏振泵浦合
  7. Proper selection of control algorithms and capacitor voltages helps synthesize controllable and waveforms almost sinusoidal three - phases ac voltage with minimum low - order harmonics at both sides of the converter

    適當的控制演算法和電容電壓,能在變換的兩側合成低次諧含量小且近似於正弦的可控輸入/輸出電壓。
  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

    本文適合電力系統信號分析的b樣條函數作為母小,對勵磁涌流和內部故障電流進行小分析,並設計微機型變壓保護基本配置,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樣條函數為母小的小變換判據演算法程序。
  9. 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,前者可實現對樣本空間中任意復雜分佈訓練樣本的穩健非線性分類,而後者能夠消除訓練樣本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。
  10. Through theoretic reckoning and simulating analyzing, several control strategies for shunt apf were compared and chose ip - iq arithmetic of the instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. two topologies of main circuit were compared and chose the three - phase voltage - source converter with a split - capacitor as its main circuit structure

    通過理論計算和模擬分析,比較了並聯型apf的幾種控制策略的優點和缺點,從中瞬時無功理論控制策略i _ p - i _ q計算方式為指令電流產生的演算法,並在此基礎上增加了抑制系統諧振和平衡直流側電容電壓的控制;比較了並聯型apf主電路的兩種常見式,從中了三相電壓型變流的主電路式;算出適合該apf的直流側電容和出線電感的參數;設計出能有效消除apf產生的高次諧的高通濾
  11. With the strong dsp as the control unit, the design of main circuit structure is provided, and the control policy for the main circuit loop, the tuning of the triggering angle for thyristor are given

    在具體的系統實現中,變換主迴路環流控制方式,採用高性能dsp作為模糊控制核心,通過加權平均判決的模糊決策演算法對變換主迴路晶閘管的觸發角進行調制,從而有效控制輸出電壓
  12. The main factors to choose connection mode of rectifier unit are discussed. the vectorgrams of transformer in different connection modes and the output voltage waveform after rectifying are analyzed

    摘要闡述了整流機組接線方式時需考慮的主要因素,分析了採用不同變壓聯結方法的相量圖以及整流后輸出的電壓
  13. But, with the development, it can ’ t meet the need of modern manufacture more and more. as a result, handhold digital storage oscilloscope is studied. handhold dso is an important genre of digital storage oscilloscope, it ’ s outstanding feature include small form, use battery instead of ac supply for power, and include the whole function of dso while implementing the basic function of multimeter. handhold dso can measure wave range automatic, analyze wave use cursor, measure resistance 、 diode and short circuit if choice digital multimeter

    手持式數字存儲示是數字示的一個分支,它具有體積小、重量輕、便於攜帶、電池供電、無須外接交流電源等優點,它集數字萬用表( dmm ) 、數字存儲示於一體,可自動對信號進行幅度的測量,也可用光標對進行分析,同時還可以通過菜單來實現對電阻、二極體以及電路通斷的測試;可以觸發通道和觸發模式。
  14. Unlike inverters for general purpose, auxiliary inverters of subway vehicle have the characters of high power, wide range of high dc input voltage, entirely sealed electronic units and natural cooling. single pulse width modulation ( pwm ) technology is found to be optimal by comparing several different high power inverter technologies and is utilized in the 2 - channel staircase inverter discussed in this thesis

    針對地鐵車輛輔助逆變電源的大功率、直流側輸入電壓高且變化范圍寬、輸出電壓穩定且質量高,電子部件全密封且要求自然冷卻的特點,分析比較了幾種大功率逆變技術方案,單邊脈寬調制階梯合成逆變為研究對象。
  15. So, in the process of laser powder rapid micro - fabrication, to gain the fine light solidification unit, mainly should adopt two following aspects : 1. using the laser that has the mini - focus spot. usually select the doubling frequency laser or fiber laser

    要想獲得細小的光固化單元,對于激光粉末快速微成工藝而言,主要從下面兩個方面入手: 1 .使用光斑直徑細小的激光2 .粉末顆粒直徑小的金屬粉末作為激光粉末快速微成型固化材料為了解決精細聚焦問題,我們採用nd : yag倍頻的方法獲得短長激光
  16. Based on the structure of all optical active fiber ring resonator, dual - tunable er3 + - doped optical fiber ring resonator filter is investigated by adding a tunable bandpass filter to change its wavelength. its finesse can also be tunable by adjusting the pump power. the wavelength tuning range of the dual - tunable fiber ring resonator filter is 39nm, from l526nm to l565nm

    在基於摻鉺光纖環腔結構基礎之上,通過在腔中加入的可調諧介質薄膜濾長,並通過調節泵浦功率來改變腔精細度,以實現一種濾長以及精細度雙可調諧的光纖環腔結構窄帶濾
  17. Due to its advantages of having no end - facet reflection, easy extension to a multi - port configuration, high tolerance for fabrication errors, and compact size, the tapered mmi is a good candidate for a coherent lightwave combiner to be used in large - scale photonic integrated circuits

    鑒于無後向反射,容易擴展為多口配置,對實驗誤差有大的允許度和尺寸緊湊等優點,這種錐多模干涉的合是大型光子集成中所用的相干光的理想
  18. In the fec part, rs ( reed - solomon ) code and interleave are chosen as the basic elements of the error correction system at first ; then the coding parameter and data structure are determined based on the results of matlab simulation ; at last, hdl modules are implemented in fpga using verilog hdl, test results and simulation diagrams are presented as well. in the designing process, the proper division of the modules and the cooperation between modules need a lot of consideration, and the top - down method is adopted to solve these questions

    在前向糾錯的設計部分,文章首先根據系統的誤比特率要求了rs ( reed - solomon )碼和交織作為前向糾錯部分的基本構架,再根據matlab的模擬結果得到了具體的編解碼參數和碼字結構,最後在fpga中用硬體描述語言veriloghdl實現了各個編解碼模塊,並給出了測試數據、實現結果及時序模擬圖。
  19. Some people are accustomed to using money to evaluate the size of these different characteristics, but some of the veteran in this regard, they are very clear, that is, different types of synthesis ( or even a synthesizer with a different waveform synthesis ) with different voices feeling, so you need to use different styles of music to choose different types of music

    有些人慣于用量值的大小來評判這些不同的特性,但是對於一些這方面的老手來說,他們都十分清楚一點,即不同型號的合成(甚至是一臺合成中同一種的不同合成法)具有不同的聲音感覺,因此在使用時需要你為不同的音樂風格不同性質的音色。
  20. Blank detail specification : fibre optic branching devices - type : wavelength selective transmissive star ; german version en 181102 : 1994

    空白詳細規范.纖維光學分支.型號:非
分享友人