速率測距 的英文怎麼說

中文拼音 []
速率測距 英文
tralength
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 率名詞(比值) rate; ratio; proportion
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • 速率 : speed; rate; tempo
  • 測距 : range [distance] finding; distance measurement; ranging; stadiometry
  1. And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the

    研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀,設計了根據駕駛員感受度來衡量超車過程的實驗方案,並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時和可回車車頭時的臨界間隙值,為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時,還提出了觀超車的實驗方法以及量加度干擾的實驗方案,統一了計算加度干擾的時間統計間隔,為雙車道公路的服務水平量化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。
  2. ( 2 ) gene flow frequency was reduced as distance from pollen donor increased and a dramatic reduction occurred at about 2 meters. the maximum distance where gene flow was not detected was 50 m for hybrid rice while it was 70 m for ms lines, with an exception that in one of the four ms lines it was detected a frequency of gene flow 2. 8 + 10 - 6 at 150 m for zhong 9a

    在開花期主流風向ne的風為0 . 2 ? 2 . 2m / sec的條件下, 2個雜交稻品種的最大漂流離為40m ; 4個不育系的基因漂流基本上到60m為止, 70m處基因漂流頻均降為0 ,僅中9a在150m處發現了1株basta抗性苗,經pcr檢驗證為陽性。
  3. The essence of edid is to set up a normal behavior fuzzy sub collection a on the basis of watching the normal system transfer of the privilege process, and set up a fuzzy sub collection b with real time transfer array, then detect with the principle of minimum distance in fuzzy discern method the innovation point of this paper is : put forward the method of edid, can not only reduce efficiently false positive rate and false negative rate, also make real time intrusion detection to become possibility ; have independent and complete character database, according to the classification of monitoring program, design normal behavior and anomaly behavior etc., have raised the strongness of ids ; use tree type structure to preservation the character database, have saved greatly stock space ; in detection invade, carry out frequency prior principle, prior analysis and handling the behavior feature of high frequency in information table, have raised efficiency and the speed of detection, make real time intrusion detection to become possibility ; have at the same time realized anomaly intrusion detection and misuse intrusion detection, have remedied deficiency of unitary detection method

    這種方法的實質是在監控特權進程的正常系統調用基礎上建立正常行為模糊子集a ,用檢到的實時調用序列建立模糊子集b ,然後用模糊識別方法中的最小離原則進行檢。本文的創新點是:通過對特權進程的系統調用及參數序列的研究,提出了基於euclidean離的入侵檢方法edid ,不僅能有效降低漏報和誤報,而且使實時入侵檢成為可能;設計有獨立而完整的特徵數據庫,根據被監控程序的類別,分別設計正常行為、異常行為等,提高了檢系統的強健性和可伸縮性;特徵數據庫按樹型結構存儲,大大節省了存儲空間;在檢入侵時,實行頻度優先原則,優先分析和處理信息表中的高頻度行為特徵,提高檢度和效,使實時入侵檢成為可能;同時實現了異常入侵檢和誤用入侵檢,彌補了單一檢方法的不足。
  4. This dissertation mainly researches the displaced phase center antenna ( dpca ) technique in the new system, and the contributions are calculated as following : 1. the doppler history is analyzed for the spaceborne bistatic sar, doppler center frequency and doppler fm rate computational methods are studied. summing up is done for the methods of moving target detection and imaging

    本文完成的主要工作有: 1 .分析慢運動目標信號特徵以及運動目標對sar成像的影響(多普勒中心頻,多普勒斜以及離徙動誤差) ,總結了目前sar運動目標檢與成像的主要方法。
  5. The scheme is designed based on these researches. for traditional laser rang finders, most of them use heterodyne method as the phase shift measurement. the advantage of heterodyne method is the high measurement accuracy, but its disadvantage is the low measurement velocity

    傳統的相位激光大部分都採用差頻數字相,差頻相的優點在於由於頻的降低,這樣必然意味著精度的提高,但其缺點是低。
  6. 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、方位角和離,給出了探器能夠接收到的光功以及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、背景光噪聲、振動偏差以及碼對系統誤碼的影響,給出了相應的改進措施。
  7. The results of the experiments indicate that the main performance of the ladar prototype matches the design requirement theoretically. the ladar prototype has many advantages, such as high imaging speed, high image resolution, high ranging precision and high quality intensity image, which can be obtained simultaneously

    實驗結果表明,所研製的成像激光雷達的主要性能指標與理論設計基本一致,具有成像高、圖像解析度高、精度高以及可同時獲得高精度強度圖像等優點。
  8. The strong probe field is coupled to the strong transition and creates two dressed states, the level spacing of which is far larger than the atomic decay rates

    強探場與弱躍遷進行共振耦合產生兩個修飾態,修飾態間遠大於原子衰減
  9. Abstract : aimed at the circumstances including deeper formation, wider wells " distance, few data in new exploratory zone and lower drilling success rate, etc., the paper discussed the drilling geological environmental factors such as seismic velocity and acoustic wave logging velocity, and put forward a set of technical methods including basical data treatment in deep exploratory wells, drilling optimal design and operations

    文摘:針對塔里木盆地沙雅隆起井眼深、井大的難點和新靶區探井參考資料少、鉆井設計盲目性大、鉆井成井低等問題,分析探討了地震層度和聲波度等鉆井地質環境因素變化規律,提出了一套深探井鉆井基礎數據處理、鉆井優化設計和優化施工的技術方法。
  10. Because of the advantages of no range blind area, high range resolution, low signal power and simple structure, lfmcw ( linear frequency modulation continuous wave ) radar attracted more and more attention recently

    線性調頻連續波( lfmcw )雷達是一種通過對連續波進行頻調制來獲得離與度信息的雷達體制系統。由於其具有無離盲區、高離解析度、低發射功、結構簡單,便於集成化等優點,適合用於液位量系統。
  11. This distance measuring system may suffice the need of high sampling speed and signal timing processing in echo disposal

    針對毫米波探系統的特點,系統能夠滿足采樣快、信號實時處理的要求,可實現對地面目標回波信號進行實時採集和高處理。
  12. Various technical measures are adopted to make sure the accuracy of the laser ranging and the requirement of the high velocity of the laser ranging is satisfied. so the real - time measurement of the dynamic target is satisfied by using this method

    該方法可以彌補現有一般相位激光機無法克服的缺陷,既可以保證一定的精度,又可以提高,從而可以對動態目標進行實時量。
  13. The time difference between the two groups of detectors are related to their separation, cosmic ray incident direction, speed, and calibration of the setup

    兩組宇宙射線訊號的時差,與其觀點間、宇宙射線的入射方向、及能量、以及儀器校準有關。
  14. To ensure the precision of distance measuring, the high - speed laser driving circuit and the detect - amplifying circuit constituted by two class high - speed operational amplifiers are used in auto adaptive cruise - control system, and the laser flying time is measured by a sixteen bit ' s binary counter, whose counting frequency is 100 megahertz

    為保障精度,裝置採用高激光器驅動電路和由兩級高運算放大器構成的探放大電路,並用一個計數脈沖頻為100mhz的16位二進制計數器完成激光收發間隔時間的量。
  15. By the advantage of high precision, strong anti - interference ability, long lifespan, etc, grating scale is the chief sensor in displacement measurement. however, as is restricted by the beam path structure, the scan frequency of the scaning circuit, etc, the maximum available measuring speed has a inverse proportion relationship to the measuring pace of a single grating scale

    光柵尺具有精度高、抗干擾能力強、壽命長等優點,成為微納米位移量的主要工具,但由於受光路結構及信號檢電路掃描頻等因素的限制,單個光柵尺量的最大允許移動度與其量步成反比。
  16. Right now, axcen photonics corp can offer the optical transceivers including gbic, sfp single - mode and multiple - mode optical transceivers for optical data communication, telecommunication, cable tv systems. furthermore, the optical transceivers for long - distance 1000base - lhx and 1000base - zx applications are offered as well. in order to meet the needs of clients, the transmission speed of the optical transceivers ranges from 155mpbs oc - 3, 2. 488gbps oc - 48, fiber channel, gigabit ethernet, fast ethernet, 4x fiber channel, sfp copper

    創威光電整合了光機電等專業人才,從半導體雷射的封裝製程,特性量到整體光收發器的設計與製造皆已完成開發及量產的階段,目前可提供應用於數據通信,電信通訊,有線電視系統及光纖數據迴路等用途的多款光收發器,其產品包括:單模與多模gbic , sfp光收發器及長離應用於1000base - lhx , 1000base - zx等光收器,就傳輸而言,目前創威光電可提供從155mbps oc - 3 , 2 . 488gbps oc - 48 , fiber channel , gigabit ethernet , fast ethernet , 4 x fiber channel , sfp copper等不同產品,以迎合顧客需求,另外,本公司亦可配合客戶要求,提供客制化產品設計及製造。
  17. According to the requirement of measurement accuracy and velocity, a novel twofold frequency laser ranging method based on phase ranging technology is proposed

    根據本課題精度和的指標要求,針對現有激光方法的局限性,提出了雙頻相相位式激光方法。
  18. In addition, the spacing between the pulses in the start bit allows the receiver to measure the transmission rate ; the rate does not need to be fixed in advance

    除此之外,也不必事先固定傳輸,因為接收器可透過起始位元內兩脈沖之間的離,量出傳輸
  19. And then, the different demands of position detecting on different light source and different distance are discussed. the different effects of position detecting on different circuit parameters and different center - filter frequencies are compared experimentally. after analyzing the factors that influence the speed and the precision of position detecting, the paper put forward the improving measures

    本文對不同環境光照和不同離下的位置量要求進行了探討,對不同的電路匹配參數和不同濾波中心頻的位置量結果進行了實驗比較,認真分析了影響位置量響應度和精度的因素,提出了提高psd器件的抗雜光干擾能力和位置量精度的措施。
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