脈沖信號源 的英文怎麼說

中文拼音 [màichōngxìnháoyuán]
脈沖信號源 英文
pulse signal source
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  1. This thesis describes the properties of millimeter wave, and development of the millimeter wave sources nowadays, and introduces the solid - state devices impatt diodes, and analyses the technology of the injection locked. then this thesis gives out how to design the pa module in detail. and practical circuit is given out with the test result and analyses

    本文首先綜述了毫米波特點，毫米波源的發展現狀，介紹了w波段impatt器件的基本工作原理，分析毫米波波導電路中的注入鎖定技術，給出實現連續波或脈沖功率放大的w波段信號源的功放模塊的技術方案、測試結果和綜合分析。
  2. It works at high frequency with a selectable pin outside ; the working frequency is fixed at 640k / 1. 2mhz. so far as the output signal of the single - chip ic is concerned, the maximum time proportion of its high level is 88 percent, but the minimum one is 10 percent

    該控制器為pwm脈沖寬度調制方式;電路正常工作溫度范圍為- 20oc 85oc ;工作開關頻率根據外圍電路輸出電壓需要為640k / 1 . 2mhz可選;輸出信號的最大占空比為90 % ，最小占空比為10 % ，晶元主要應用於lcd電壓電源管理設備。
  3. In this paper a multi - passage controlling tactic composed of infinity impulse filter is presented to solve the problem in theory, but actual effect must be verified by experiment in future

    文章嘗試採用由無限脈沖濾波器組成的多通道控制策略，從理論上解決源噪聲信號採集問題，其實質效果還有待於後續實驗驗證。
  4. Solar array simulator is programmed in labview to simulate the running condition of satellite ( such as sun angle, shadow time, orbit and so on ). electronic load is programmed in labview to simulate the running condition of satellite load. by data collecting and processing, satellite power engineers can monitor and evaluate working condition of satellite power system

    該測試評估系統應用labview軟體對太陽能電池陣列模擬器進行編程，模擬太陽能電池在空間各種狀態下（軌道、光照角、進出陰影等）的情況；對電子負載進行編程，模擬衛星負載的各種變化（平均負載、短期負載和脈沖負載）情況，信號採集和數據處理單元在測試評估系統運行過程中記錄電源系統各組成部分的工作參數，據此對衛星電源系統進行測試和評估。
  5. The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )

    硬體電路設計包括：工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路（恆流源電路、時基信號處理電路、被測信號處理電路）設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括：主程序流程圖、系統開機自檢程序流程圖、手動靜態測試程序流程圖、半自動靜態測試程序流程圖、自動靜態測試程序流程圖、動態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號，並對三種不同測試狀態（靜態、動態、暫態）下大量程脈沖變換電路輸出脈沖信號的頻率進行精確測量。
  6. In this system, cpld controls semiconductor laser, the fet controls surface light source by the way of changing input voltage to control current, and the pulse signal of 1khz produced by at89c2051mcu controls yag laser

    系統中使用cpld控制半導體激光器，使用場效應管通過改變輸入電壓控制電流的方法來控制面光源，通過at89c2051單片機產生1khz的脈沖信號來控制yag激光器。
  7. The microprocessor is used to realize digital control as flip plus of the scr. the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system. furthermore in the zero - current detection circuit, use the photocoupler gaalas ired and photo ic to detect zero - current, furthest shorten the commutating " died region ", prevent the current from distorting

    設計中採用單片機控制可控硅的觸發脈沖，實現數字化控制，並利用mitel公司的三相pwm交流電機脈寬調制晶元sa866ae ，成功研製了交-交頻器中的低頻信號發生器裝置，效果良好；此外利用用光電檢測元件進行系統零電流的檢測，盡可能地縮短換相死區，防止電流發生畸變，成功地解決了原有低頻電源系統中存在的兩大難題。
  8. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電機原理與脈寬調制技術，選用智能功率模塊ipm作為逆變開關器件，輸出交流脈沖勵磁信號，以調節勵磁轉換頻率和勵磁電流大小為手段，實現對磁場旋轉頻率和磁場強度大小的有效調節，並通過閉環反饋實現閉環恆流控制。
  9. This thesis researches the pc - based cnc system under windows os. the main object of this system is yag pulse laser power. a control card has been done to generate the required signal of laser power

    其控制主體為yag脈沖激光電源，為了實現激光電源正常工作需要的各種控制信號，製作了基於pc機局部總線的介面控制卡。
  10. By the former experiment, we know that the fiber optic gas sensor with the pulse light of the blue light led can emit the steady fluorescence. so we can detect the density of oxygen through

    技術方案上採用數字脈沖激勵led藍紫光源照射敏感元件獲得穩定的熒光信號，再通過測量熒光壽命檢測氧氣濃度。
  11. A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted

    Thz （ 10 ~ （ 12 ） hz ）時域光譜技術是20世紀90年代發展起來的一種新型的光譜測量技術，它使用頻率介於遠紅外和微波之間的相干電磁輻射脈沖作為探測源，利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形，通過傅立葉變換得到測量信號振幅和相位的光譜分佈，進而獲得材料在thz波段的復介電常數，即色散及吸收等信息。
  12. A fast and accurate algorithm to estimate the frequency of a coherent pulse sinusoid is presented in chapter 3. it is based on the autocorrelation iterative method, and the simulation results show that for the lower snr, this algorithm can accord with the request of the soplat ’ s precision and less computational complexity. therefore, it ’ s a promising algorithm for practical application

    在對正弦脈沖信號的頻率估計中，第三章在總結、比較前人演算法的基礎上，選擇了基於自相關迭代的頻率精確估計演算法，並進行模擬分析，結果表明，該演算法在較低信噪比時，可以達到單站無源定位所要求的估計精度，且運算量小，具有廣闊的應用前景。
  13. Such sources are believed to be either quark stars or neutron stars, and a subclass of these are already observed by conventional means as pulsars or x - ray emitting celestial objects

    一般認為這些信號源就是夸克星或中子星，其中一些已經通過傳統的方法觀測到，稱為脈沖星。
  14. Most present acoustic level gauges use a sound generator which can produce high - power acoustic waves and a microphone which can detect the echo signal. the fluid level can be worked out based on the artificial analysis of the echo curve

    目前正在應用的井下液位測量儀器，主要是通過爆炸聲源產生大功率聲脈沖信號，利用微音器接收回波信號，人為地對回波信號曲線進行分析來估算液位。
  15. ( 2 ) based on pci, finish plan of the project, hardware design and debugging of wide signal source of radar. the system can produce single, lfm and other arbitrary waveform

    （ 2 ）完成了基於pci總線的任意波形信號源的方案設計、硬體設計與調試，該系統可產生單頻脈沖?線性調頻信號、三角波等任意波形信號。
  16. With the rapid development of science and technology, especially in high power microwave technology, high power pulse microwave sources are widely used. thus, the requirement for measuring the power and frequency of high power microwave is improved

    隨著科學技術的發展，尤其是大功率微波技術的發展，大功率脈沖微波信號源應用越來越廣泛，這樣對功率和頻率測量設備的要求也越來越高。
  17. The pulse / pattern generator has been wildely used in modern measuring and controlling fields, it can generate kinds of standard pulse signals and programmable user data to meet some special digital measuring requirements. and the digital waveform generating part, which can generate digital waveforms in given working modes, is the core of a pulse / pattern generator

    脈沖/數據發生器是現代測量與控制中常用的信號源，它可以產生各種標準的脈沖波形和具有一定編碼規則的用戶數據，用來滿足特定數字測試要求，而數字波形產生部分是脈沖/數據發生器中的核心部分，承擔著產生各種模式的脈沖數字波形的任務。
  18. The signal environment of the ew pulse radiator is analysed in the thesis

    論文詳細分析了輻射源信號環境，並討論了常見的各種脈沖輻射源。
  19. The radar radiation is high density, all frequency and it ' s frequency is changeable, we can get the toa, pw and pa by measuring the parameters of radar pulse. by these parameters, we can know where the radiation be, then we can launch arm to perish enemy or protect own

    通過對雷達視頻脈沖信號參數的測量，可以獲得脈沖幅度（ pa ） 、脈沖到達時間（ toa ）和脈沖寬度（ pw ）等時域參數，獲取敵方輻射源的型號、威脅等級等信息，從而對目標進行識別和定位，以達到消滅敵人，保存自己的目的。
  20. As the system is regarded as being excited by a constant direct current at the data acquisition point, no complex ac circuit such as filter is required. it can improved the rate of data acquisition and simplify the circuitry of ert system

    由於系統採用了直流脈沖信號作為系統的激勵源，后續的信號處理電路就可以直接獲得測量結果，無需復雜、耗時的濾波電路，這就消除了濾波器這一限制數據採集速度提高的「瓶頸」問題。
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