position pulse 中文意思是什麼

position pulse 解釋
定位脈沖, 定時脈沖
  • position : n 1 位置；方位；地點。2 處境，情況；狀態，形勢，局面。3 姿態，姿勢。4 地位，身份；職位；職務。5 ...
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  1. Random pulse position modulation ( rppm ) signal not only has good resolution of distance and velocity, but also has low probability of interception and strong properties of eccm

    隨機脈位調制信號不僅具有良好的距離和速度分辨力，而且具有較低的被截獲概率和較高的抗干擾性能。
  2. Position control of d. c. motors has been done by means of pulse width modulation.

    直流電機位置用脈沖寬度調製法控制。
  3. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  4. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。
  5. A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented, it is composed of avr microcontroller, pwm power driver, unit of speed detection using encoder and a serial communication interface, etc. fuzzy pid algorithm is employed to control the speed and position of wmr. the method can solve effectively some problems such as the uncertainty of wmr ' s model, the varieties demand, the change of situation

    其次，設計了基於avr微控制器（ at90s8515 ）的移動控制系統，其中主要包括pwm功率驅動、測速單元和串列通訊模塊等：對機器人速度、位置控制採用模糊pid演算法，較好地克服了移動機器人模型的不確定性、轉速位置控制要求的多變和環境改變等因素的影響。
  6. At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder

    硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。
  7. The system is also accurately calibrated so that each laser transmits its optical pulse at a known angle and uses satellites to calculate the exact real world position of the scanner

    該系統還精確標定，使每一個激光傳輸的光脈沖在一個已知角和用途衛星計算出實際的現實世界中的地位的掃描器
  8. Our results show that pmd induces pulse broadening randomly in high bit - rate optical fiber communications ; the synchronous amplitude modulation control may correct directly any position change of timing jitter and soliton interaction, so the transmission distance and pulse quality will increase further

    研究結果表明對于高速率傳輸系統， pmd對脈沖的影響在時域上表現為脈沖形狀的展寬，這種展寬是隨機的；而同步幅度調制是在時域上，將發生形變的脈沖通過振幅調制，恢復原形，從而提高脈沖的傳輸性能。
  9. 2. applying manchester coding theory to meet the end of collision detection and codes judgment effectively. 3. using pulse position modulation ( ppm ) coding theory that is invented especially for optical communication in the air to ameliorate the system ' s performance by improving the system ' s character of pe. 4. taking good advantages of the fledged lan communication protocols and technologies to achieve a new method that has a high rate of capability to cost in building a wireless lan

    論文研究中主要的創新性工作如下： 1 、提出利用光散射通信技術組建無線局域網，方便地實現了廉價而高速的局域網內微機的光互連； 2 、採用曼徹斯特編碼技術解決了光無線通信中代碼判決和碰撞檢測的技術難題； 3 、針對空氣通道的特點，利用ppm編碼技術降低通道誤碼率、改善系統性能； 4 、在光無線局域網中利用現有的成熟有線局域網協議和技術，從而保證了系統的實用性及改善了系統的性價比。
  10. With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones

    通過建立速度跟蹤束流的數學模型，較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法，成功地解決了速度精度問題（誤差在士1 %內） ;通過檢測接近開關觸發的脈沖數，適時校核所有小車位置，消除各車之間距離計算誤差，從而很好地解決了距離累計計算誤差。
  11. Based on the detection principle of pyroelectric sensing elements, this paper presents a symmetrical peak detection method of continuous double plus - minus pulse signals to eliminate external interference in fixed position heat source

    根據熱釋電敏感元件的探測原理，本文提出一種對正負脈沖信號和連續正負脈沖信號進行對稱峰值檢測的方法。
  12. The enhanced preamble detection must get the start time of the signal by the detection of valid pulse position and lead edge

    報頭檢測的任務是檢測有效脈沖位置和上升沿檢測，從而確認一個四脈沖的報頭，得到信號的到達時間。
  13. The methodology of the important thought of the " three represents " emphasizes : develop in insisting, insist on in developing ; fix the accurate historical position, make the firm practice foundation ; hold the pulse of the times, answer the realistic subject ; insist on dialectical unity, emphasize coordinated development ; insist on keeping pace with the time, put emphasis on pioneering and inventing

    「三個代表」重要思想的方法論強調：在堅持中發展，在發展中堅持；找準歷史方位，打牢實踐基礎；把握時代脈搏，回答現實課題；堅持辯證統一，強調協調發展；堅持與時俱進，強調開拓創新。
  14. This thesis uses the method of pulse coding to design the determining absolute position system of maglev train and mainly includes four aspects as following : firstly, the purpose of using the locating system of maglev train is discussed. the principle and characteristics of the locating system of maglev train is detailedly introduced and analyzed. all kinds of methods for maglev locating and speed measuring are classified, compared with each other

    本文主要是利用脈寬編碼感應法來設計磁懸浮列車的絕對定位系統，主要包括以下內容：首先，論述了使用磁浮列車絕對定位系統的目的；對磁浮列車絕對定位系統的原理和特點進行了詳盡的介紹和分析；對各種磁懸浮列車定位、測速方法分類，比較了它們的不同。
  15. Using the variational method, analytical conditions for stationary pulse propagation in dense period fibers with strong dispersion management are deduced. the expression of initial soliton peak power is given. by employing the obtained formulas, the soliton evolution semi - analytically in various dispersion maps can be investigated. effects of the third order dispersion are also studied in this paper. the results show that imperfect dispersion slope compensation can cause pulse central position shift and even serious degradation of soliton shape

    利用變分方法，推導出了在強色散管理的密集周期光纖中脈沖穩態傳輸的解析條件，並給出了初始脈沖峰值功率的表達式.運用這些公式，對各種色散管理系統中孤子的演化進行了半解析的考察.三階色散也被考慮在內.結果表明:不完善的色散斜率補償將導致脈沖中心位置的偏移甚至嚴重的孤子形狀劣化
  16. In this dissertation, we systematically study the pulse - position - modulated pulse - sequence ( ppm - ps ) radar signal theory and its applications to radar / fuze systems

    本文系統地研究了脈位調制脈沖串雷達信號理論及其在雷達引信中的應用。
  17. It is composed of magnetic pulse sensor and control components, and is a built - in part inside distributor. it detects engine cranking position signal and cylinder signal via sensor, followed by treatment by control unit, thus controlling the on off of the current of control ignition coil to achieve the purpose of ignition. it has a function of auto closing regulation

    該型產品是為微車無觸點點火系統而研發的，它由磁脈沖傳感器和控制組件構成，內置於分電器內，通過傳感器檢測發動機曲軸位置信號汽缸信號，然後經控制組件處理，控制點火線圈中電流的通斷，從而達到點火目的，具有閉合角自動調整等功能。
  18. It is composed of magnetic pulse sensor and control components, and is a built - in part inside distributor. it detects engine cranking position signal and cylinder signal via sensor, followed by treatment by control unit, thus controlling the onoff of the current of control ignition coil to achieve the purpose of ignition. it has a function of auto closing regulation

    該型產品是為微車無觸點點火系統而研發的，它由磁脈沖傳感器和控制組件構成，內置於分電器內，通過傳感器檢測發動機曲軸位置信號、汽缸信號，然後經控制組件處理，控制點火線圈中電流的通斷，從而達到點火目的，具有閉合角自動調整等功能。
  19. The paper contains all kinds of knowledge related to the system, including maxwell electromagnetic theory, pattern of optical radiation in space, channel model of atmosphere communication, computer communication protocols, wireless lan communication protocols, medium access control protocol, carrier sense multiple access / collision detection protocol, manchester coding theory, pulse position modulation coding theory and so on

    主要包括： maxwell電磁理論；發送光場模型；空間通道模型；計算機網路通信技術：無線局域網通信技術；媒體訪問控制規程（ mac ） ；載波檢測多址接入碰撞檢測規程（ csma cd ） ；曼徹斯特編碼與ppm編碼技術等。
  20. Then we introduce pulse position modulation ( ppm ) using pn code and analysis its multi - access performance, system capacity and power spectrum density. on the basis of those analyses, we study the pulse shape and the anti - jamming ability of the system. at last, multiple access with pseudochaotic time hopping is introduce

    本文首先闡述了uwb脈沖通信系統的基本原理，重點介紹了用偽隨機碼跳時的ppm （脈沖位置調制）調制，分析了他的多址性能、系統容量和功率譜密度，在此基礎上研究了改進性能的發射信號形狀和系統抗干擾能力，最後介紹了偽混沌碼跳時的多址方式。
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