速位差 的英文怎麼說
中文拼音 [sùwèichā]
速位差
英文
velocity head-
With the rapid development of the carrier phase differencing technique and digital signal processing hardware, it is possible to implement real - time processing of gps based attitude determination system
隨著載波相位差分技術和數字信號處理硬體的快速發展， gps姿態測量的實時處理成為可能。Finally, this dissertation discusses the application of traffic control method in improving measures of urban transportation environment. the illustration example indicates that, by reasonably limiting the speed of urban vehicles and alternating the signals at grade intersection, the total emission of motor vehicles can be reduced while assuring normal transportation operation
本文最後討論交通管理方法在城市交通環境改善方面的作用，通過示例分析，合理地進行車輛限速和對相位差合理微調可以在保證交通正常運行的條件下減少機動車污染物排放量。Through coordinated control of wuyi road, a main artery in changsha, we can calculate offsets by graphical analysis in the simulation software
通過建立長沙市五一路線控系統，可以迅速在模擬軟體中對相位差進行圖解法的計算。Data reduction was carried out in real time by a minicomputer. the microcora was replaced by a more advanced version, digicora, in 1993
地面站即時用一部小型電腦從轉播信號的相位差計算出無線電探空儀的位置，從而計算出高空風向和風速。The single - observer passive locating method with phase difference rate of change and some key technologies - are studied in this dissertation on the applying background of locating remote slow offing targets with fast plane. this dissertation is outlined as follows
本文面向快速運動的空中觀測平臺對海面慢速運動目標定位的特定應用背景，利用相位差變化率方法進行了單站無源定位體制和關鍵技術的理論研究。In order to solve need badly three - ring type gear reducer ( problems of high vibration, high temperature and short spin arm bearing life in operation, by means of power separation flow, elastic ring equilibrating load, tardy down and assimilation vibration of synchronous belt transmission, and mechanism balance principle, the author designs a new type three - ring type gear reducer with arc tooth synchronous belt transmission, the gear reducer is fully balancing, equilibrating load and reducing vibration and phase difference 180 ( of mass eccentricity
為解決一般三環減速器振動大、溫升高和轉臂軸承使用壽命短等生產中迫切需要解決的問題，依據功率分流、彈性環均載、同步帶緩沖及吸振和機構平衡原理，設計出了一種具有圓弧齒同步帶傳動的完全平衡、均載減振，偏心相位差為180的新型三環減速器。Analysis indicates the " low pressure closed reticular flow region " results in the non - equilibrium of pressure along the primary jet ' s orifice. to obtain as large vectoring angle as possible, the optimal ranges of angles, frequencies, velocity amplitudes, and distances from the microjet actuator to the primary jet exit were discussed. the relationship between the vectoring angle of the primary jet and the phase - difference of two adjacent actuators was analyzed
分析了「拉」模型單作動器模式下，微射流作動器的入射角度、驅動頻率、速度幅值及與主射流間的距離對主射流偏轉程度的影響，並確定了作動器工作參數的最佳范圍;分析了「拉」模型雙作動器模式下，不同的相位差對主流偏轉程度的影響。It also builds the mathematic model of all section of vscf ac exited wind power generation system on a - b - b and d - q coordinate system by the coordinate commutation technology. the thesis gives the characteristics of torque, active power, reactive power and the steady - state analysis of it. it proves that the capability of wind generator is determined to slip, the amplitude and phase of rotor voltage, the phase dispatch between stator voltage and rotor voltage
並分析了交流勵磁風力發電機作變速恆頻運行時的工作原理，闡述了與同步發電機、異步發電機的不同之處，分析了其能量平衡關系，在坐標變換技術的幫助下，詳細推導了交流勵磁發電機在a - b - c坐標系和d - q坐標系下的數學模型，分析並模擬了其有功和無功特性、轉矩和功率調節特性、穩態運行和機械特性，證明了發電機的性能由轉差率、轉子電壓的相位和幅值、定轉子電壓相位差所決定的。Results showed : ( 1 ) cbt cell death in low tempratures is accompanied by characteristic changes, such as, reduced cell size, distorted nucleus, chromatin condensation and margination and cell ( cytoplasmic ) vacuolization ; cell mortality and ca2 * concentration increase along with time passed in low temperature. mitochondrial membrane potential and 02 increased at first, and then decreased. activities of sod decreased at first, followed by significant increasing and finally depressed
結果表明： （ 1 ） cbt在低溫協迫下，細胞圓縮，細胞核變形，染色質濃縮且邊位，細胞質空泡狀；細胞死亡率隨處理時間的增加而增加；細胞內鈣離子濃度隨處理時間延長而遞增；線粒體膜電位差在低溫處理早期急速上升，隨后一直下降；細胞內超氧陰離子（ o _ 2 ~ - ）在低溫處理前期出現高峰，接著呈下降趨勢；細胞內sod活性在低溫處理前期減弱，接著上升，然後持續下降。The main tasks of this thesis are : discussing the dead - reckoning theory of doppler velocity log and compass, decreasing location error methods, emulating several ship tracks ; discussing several aspects influencing the velocity precision of doppler velocity log ; in a pool trial, processing the trial data and achieving some conclusions
本論文主要研究工作包括：對羅經和多普勒計程儀推算輔助導航系統的工作原理，及減小定位誤差的兩種方法和幾種軌跡進行了研究；對影響多普勒計程儀測速誤差的各個方面進行了綜述；最後對多普勒計程儀水池試驗的數據進行了處理，得出所要結論。Measuring velocity precision is very important. in this thesis, the author researches on the location precision of doppler velocity log and compass, the precision of velocity precision of doppler velocity log
本論文就是針對這兩方面而做的，主要圍繞著輔助導航系統的定位精度和如何減小多普勒計程儀的測速誤差進行的。The curves showed that the moisture contents of straw and the shear bar are the main factors impacting the cutting ratio besides cutting speed. the speed of 40mm / s is necessary to cut off wet straw. ( 4 ) the testing results indicate that the rotary speed of the blade axle need to be more then 1230 rpm ( rotary radius of the blade is 25cm ) to cut off straw ( with moisture content less then 20 % )
試驗結果表明，對于乾的長秸稈，刀片切割速度達到15m / s時，切斷率達100 ；對于乾的短秸稈，刀片切割速度需達到20m / m / s以上；要切斷濕秸稈需要有40m / s以上的切割線速度；加定刀與不加定刀對于切斷麥秸這類軟質秸稈是非常重要的，其切斷速度差別很大；另外，麥秸不同部位所需要的切斷速度也是不一樣的，根部較之頂部和中部更難切斷。Meanwhile, in order to reduce computation time, fast estimation method was designed. and by grouping properly, computation rate was improved with the precision of position determination not decreased
同時為了節省計算時間，設計了快速平差方法，通過合適的分組，在不降低定位精度的前提下，提高了計算速度。This system is realized by cpld which can get rid of the disadvantages in one - time design including property liable to jamming, long sampling period, and poor working stability. its sampling period is up to 500ns at least and output delay is only 19. 5ns. a stable period of pulse coming out of quadruple - frequency differential circle belongs to it
完成了用vhdl硬體描述語言對全數字轉速位置測量子系統的設計，並用max ? plusii軟體進行了編譯和波形模擬，在cpld （ max7000 ）得到實現，該系統克服以往設計中存在的易受干擾、工作穩定性差、采樣周期太長等的缺點，輸出延時僅為19 . 5ns ，采樣最低周期可達到500ns ，且四倍頻微分電路獲得的脈沖周期穩定。Results of experiment show that the two algorithms put forward in this paper are effective in phase difference measurements of high speed and precision
相位差檢測實驗結果表明，提出的方法能快速準確地實現相位差的檢測。Algorithms concerning phase difference measurement, viz, the zero passage method and the relevant function method are brought forward
摘要針對相位差檢測的過零法和相關分析法，闡述了演算法的檢測原理，討論了影響相位差檢測精度和快速性的因素。Measuring velocity of light using phase difference method
相位差法測量光的速度Fibre optic communication subsystem basic test procedures - test procedures for digital systems - bit - rate tolerance measurement
光纖通信系統基本試驗程序.數字系統試驗程序.位速容差測量In the aspect of detection and high precision estimation of seafloor backscattering, algorithms of fast convergence of energy center and correlation of eigen - replica were developed. also studded were processing methods of weighted mean time ( wmt ) and bearing direction indicator ( bdi ) based on fft beam forming as well as high precision detection and estimation of time of arrival ( toa ) and direction of arrival ( doa ) using split beams phase difference detection technique
圍繞海底反向散射信號的高精度檢測和估計技術，開發了快速能量中心收斂演算法和特徵模型相關演算法，研究了基於fft波束形成的加權時間平均與方位指示處理方法，並討論了利用分離波束相位差檢測技術的海底反向散射信號到達時間（ toa ）和到達方向（ doa ）的高精度檢測與估計方法。In this article, a new unwrapping method is presented, which can get the real phase of the image and overcome the influence of the noises. 4. after the measurement system solves the difference of phase through ftp and makes the data multiply with the calibration matrix, the real height of the object surface can be got
因此本文對ftp法的解相問題做了改進，提出了一種逐點增長解相方法，可以快速得到變形光柵相對參考光柵的實際相位差，有效地消除相位圖象中噪聲的影響，並用實驗對所提出的解相方法進行了驗證。分享友人