range and range-rate system 中文意思是什麼

range and range-rate system 解釋
距離和距離變化率測定系統
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. Lc apparatus almost meet all the needs of space optical communication such as weight, size, power consume, life, cost, driving voltage, intergration of optics and electricity, programe, optically take ? over aperture, beam scanning, deflexional range and so on. switches, deflexional facilities and scanning equipments which made with lc have been used in the system of labor in space communication. the only bug of lc apparatus is that their answer speed only get microsecond rate or submicrosecond rate. but it is practical for them to be used in special beam capture, scan, deflexion controling which don ’ t concerned with code rate and code type

    液晶器件幾乎滿足空間光通信的所有大的指標要求如重量、尺寸、功耗、壽命、成本、驅動電壓、光電集成、可編程性、光學接收孔徑、光束掃描和偏轉范圍等等。液晶光開關、光偏轉器、光掃描器已經開始應用於光纖通信的實驗系統中。液晶類器件應用於光通信的唯一重大缺陷，是其響應速度目前只能達到微秒級或亞微秒級，不過，在不涉及到碼型碼率的空間光束捕獲、掃描、偏轉、控制方面，液晶器件完全可能進入實用化。
  2. A data acquisition system with the following features is realized : ? transmission rate up to 100kbyte / s over usb ; ? system ' s dynamic range as high as 120 db ; ? multi - kind of trigger mode control ; ? sampling rate as high as 100 ksps ; ? 12 - bit a / d conversion accuracy ; ? 32k bytes on - board data memory ; ? the system, which was made up of large - scale electronic chips, is small, light and portable, and suitable for field use

    本設計最終實現了一個瞬態信號數據採集系統，它具有以下特點： ?採用usb介面進行高速數據傳輸，傳輸速度達100kbyte / s ； ?採用浮點a / d轉換技術，動態范圍達120db ； ?多種采樣觸發控制方式； ?最高采樣率100ksps ； ? 12位采樣精度： ? 32kb數據緩存； ?使用新型大規模電子器件，系統結構緊湊，重量輕，適合野外作業。
  3. By calculating parameters including the link length, the azimuth angle, the elevation, the optical power that the inter - satellite optical cdma communication system will receive, the variation range of the azimuth angle and the elevation from the optical antenna of atp are understood well. by analyzing the factors to impact bit - error - rate ( ber ) from the received power, multi - user disturbing, background noise, wavelength, bit rate etc, measures to guarantee high performances of the system are obtained, especially those for smoothing the fluctuation of the received optical power from host platform vibration

    分析研究了衛星光cdma通信系統中衛星仰角、方位角和距離，給出了探測器能夠接收到的光功率以及atp子系統捕獲及跟瞄的范圍;對衛星光cdma通信系統性能模型和基於衛星振動系統性能模型的研究，分析了多用戶干擾、接收光功率、背景光噪聲、振動偏差以及碼速率對系統誤碼率的影響，給出了相應的改進措施。
  4. Using minimum water supply cost as objective function, the secondary series of optimal dispatch model was set up. the optimal combination of fixed - speed pump and the optimal range of rate and flow in varied - speed pump station were elaborated. applying these methods for water supply system in yuci city, the result show it can save energy, which illustrate this optimal dispatch model was successful

    以供水費用最小為目標函數，建立了給水系統的一級優化調度和二級優化調度的宏觀模型；詳細闡述了泵站中只有恆速泵時恆速泵的最優組合方法，含有調速泵時，給出了確定調速泵最佳臺數、最佳調速范圍和調流范圍的計算方法。
  5. But because of faults of legislation and judicature, the system of probationary suspension in china is confined in the range of application, the rate of application and the succeeded rate of application

    但我國的緩刑制度由於立法和司法上的缺陷，其適用面、適用率及適用成功率受到極大局限。
  6. Range rate measurement system of radar plays an important role in studying the characteristics of target, the target orbit confirmation and the safety control of missile

    摘要雷達測速系統在研究目標特性、目標定軌、導彈安全控制中起著重要的作用。
  7. The range - finding and aiming device is an important component of the self - propelled gun fire - control system, which is consisted of pulse liquid lazer, an automatic mounting unit with step by step motor, and a master controller box specified for information control and management, etc. modern warfare requires a low rate of weapon malfunction and consequent stoppage

    自行火炮測瞄裝置是自行火炮火控系統的重要組成部分，它由脈沖固體激光器帶步進電機的自動裝表機構和一個以信息處理和控制為中心的主控箱等組成。現代戰爭要求武器裝備要有一個盡量小的故障發生率和故障停機率，一旦發生故障，要求維修人員能迅速準確地判斷故障單元和故障性質。
  8. Therefore, the system has a characteristic of high precision, large dynamic range and high transmission rate

    因此，系統采樣速率高、動態范圍寬、數據傳輸速度快。
  9. This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.

    採用磁場定向脈寬調制演算法，提高了電源利用率，降低了逆變電壓的諧波，改善了電機的運行特性，降低了對電網的污染；在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢量脈寬調制控制系統的數學模型，在模擬的基礎上，對傳統pid調節器進行了改進，提出轉速調節器和電流調節器採用分段pid結構，根據給定轉速所處的區間，自動選擇相應pid調節器的參數，拓寬了調速范圍，提高了控制精度。
  10. According to the technical requirement of range rate measurement in monopulse radar measurement system, the issue of spreading of received target spectrum under great acceleration is discussed in detaailed and the algorithm for acceleration compensation and the method of engineering realization are presented

    根據高加速度下單脈沖測量雷達測速的技術要求，詳細地討論了高加速度情況下的目標回波譜線發散問題，給出了加速度補償的基本演算法和工程實現框圖。
  11. For long - haul high bit rate trunk line optical fiber communication system and metro optical fiber network, a semiconductor optical amplifier ( soa ) is the most promising component due to its all kinds of properties and small dimension, compactiveness, low drive voltage, such as in optical network solutions, polarization - insensitive semiconductor optical amplifier ( pisoa ) is a popular candidate as optical gates. but the polarization - insensitivity over large wavelength range is requested. the purpose of this thesis is to develop a soa which is polarization - insensitive and has large 3db bandwidth

    隨著寬帶傳輸和寬帶接入以及全光網的組建和發展，大帶寬偏振不靈敏半導體光放大器（ semiconductoropticalamplifier ， soa ）由於其易於與其它器件集成，體積小，具有快的動態增益響應，非線性好，飽和輸出大，可實現無損操作等特點，在光通信網路中，成為光纖通信發展，全光網組建以及wdm 、 tdm技術成熟的關鍵部件之一，其中偏振不靈敏和大的3db帶寬是性能優良soa的重要指標，也是制備的技術難點。
  12. This paper studies dielectric characters of rain and fog, calculate the equivalent complex refraction constant of rain and fog and find them prediction models using linear and non - liner system identification method, get average value of complex refraction constant in different rainfall rate range of rain

    本篇論文利用系統辨識方法（線性、非線性）研究了雨、霧的介電特性，計算了雨的等效復折射指數，給出了其預報模型及不同降雨率區間上的平均值；計算了霧的等效復折射指數，給出了預報模型。
  13. Furthermore, this paper exploringly studies an 802. 1 la high - speed wlan with the 54mbps data rate, and presents a sort of time synchronization and frequency offset estimation method based on the frequency domain auto - correlation of the unique preamble training sequence of 802. 11 plcp frame ; the method have the high time precision, the wide frequency estimat ion range and short convergence process ; and moreover, it can applied to other frame communication system

    另外本文還對最高傳輸速率為54mbps的802 . 11a高速無線局域網系統進行了探索性研究，討論了ofdm調制技術在無線局域網中的應用；結合802 . 11a物理層數據幀結構特點，提出了一種基於前導訓練符號序列的頻域自相關時間和頻率同步方法，此方法具有定時精度高、頻偏估計范圍寬和同步建立迅速等特點，也適合於其它幀通信應用場合。
  14. Bluetooth is a short - range wireless data and voice communications technology, is the ieee802. 15 agreement as a low - power, low - data - rate, low - cost technologies, which is very suitable for home automation, security system and lo5a8w - data - rate transmission between low - cost equipment, bluetooth technology is in line with the development of information appliances optimization technology is well - suited to the requirements of domestic intelligence, will in the future smart home were widely available

    藍牙技術是一種短程無線數據與語音通信技術，屬于ieee802 . 15協議，作為一種低功耗、低數據速率、低成本的技術，非常適合於家庭自動化、安全保障系統及進行低數據率傳輸的低成本設備之間，藍牙技術是很符合信息家電發展的優選技術，很適合家居智能化的要求，必將在未來的智能家居中獲得廣泛應用
  15. ( 1 ). here we build the system space geometry model : the transmitter and receiver fly on different platforms and at different height, two flight paths are unparallel. based on the chirp signal and the taylor series, we analyze the range history and synthetic aperture time, then demonstrate the equation of the azimuth resolution about air - born bistatic spotlight synthetic aperture radar, meanwhile we obtain the equations of doppler bandwidth and doppler frequency modulate rate

    本文以機載聚束式合成孔徑雷達成像作為研究背景，主要完成了以下幾方面的工作: （ 1 ）建立了一種機載雙站聚束式sar空間幾何數學模型，對方位分辨力進行了理論分析，進行了數值分析與模擬，討論了不同條件對雙站聚束模式sar系統分辨力的影響。
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