距離差測定 的英文怎麼說

中文拼音 [chādìng]
距離差測定 英文
distance difference measurement
  • : 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...
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
  • 測定 : determine; determination; setting-out; admeasurement; assignment; assay; finding
  1. The main work of the first part includes : introducing some methods of underwater sound positioning and analyzing their performance, analyzing the theory of measuring direction and distance of the target by three elements symmetrical and dissymmetrical array, comparing the measuring error of two kinds of array, and giving the theory of the generic arrays and discussing the phase wrapping and the distance wrapping in passive ranging

    對被動技術的研究工作主要包括:簡單介紹了水聲位的幾種方法,並對其性能進行了分析對比,分析了三元對稱陣和非對稱陣的原理,對兩種陣型的進行了對比分析,還給出了一般陣型原理,最後還對被動中存在的相位模糊和模糊問題進行了探討。
  2. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行,而格局分佈有可能受樣方大小的影響,且分析過程中沒有涉及聚塊間密度的問題,因而無法掌握種群的聚塊大小別及聚塊內個體間的散程度.本研究採用無樣方法,不同生境的格氏栲種群空間格局,分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度義,紋理則是體現聚塊內個體間的散程度與諸聚塊間的分程度.結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋理從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一結果與作者採用聚集度指標相同樣地格氏栲種群空間格局的結果基本相符.因此,格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
  3. This thesis mainly discuss the practical value of the stereopsis test software in the ophthalmic clinical test of stereopsis, compare the difference between the traditional tno method and our software, measure the normal value of distant and near stereo acuity of health people. analyze the relation between the age and stereopsis, analyze the relation between the distance and stereopsis, test the near stereopsis development of young children with ophthalmic disease, test the influence on stereoacuity of the size of random dot

    本課題主要探討自編立體視檢查軟體在眼科臨床立體視檢查中的應用價值;比較傳統的tno檢查法與本軟體檢查法的異;正常人群各年齡組遠、近立體視銳度的正常值;分析年齡與立體視的關系;分析檢查與立體視的關系;斜視、弱視兒童的近立體視發育情況;隨機點大小對立體視銳度的影響。
  4. After the construct of the motion simulation model, genetic algorithm is used to do the adjustment of pid parameters of the control system of the joint motors, integral separation pid control and angle error analysis is finished, and three force / torque sensors, touch sensors, distance sensors and photoelectric switches are calibrated and installed

    在建立了機器人關節控制系統模型后,使用遺傳演算法對其關節電機控制系統進行pid參數整,進行機器人關節的積分分的pid控制策略和轉角誤的理論分析,並進行了機器人三維力/力矩傳感器、接觸傳感器、傳感器和光電開關的標與安裝。
  5. To achieve accurate detection of surface potential, the measurement of the contact potential difference of the zno / si step was also carried out. polarization - related surface properties of ferroelectric thin films were investigated by kelvin probe force microscopy ( kpfm ), leading to the discovery of asymmetric charge writing on the surface of pb ( zr _ ( 0. 55 ) ti _ ( 0. 45 ) ) o _ 3 ( pzt ) thin film

    為了優化儀器的檢靈敏度和穩性,選用氧化鋅薄膜上的zno / si臺階作為試對象,檢了zno / si的接觸電勢;通過改變儀器系統參數,發現針尖-樣品和掃描速度對接觸電勢的檢結果影響顯著。
  6. Based on analyzing the mechanism of direction finding triangulation location and location accuracy for two - ship passive locating, the acquisition probability model of anti ship missile terminal guidance radar is presented for two - ship passive locating : and the effects of the key factors to the probability are analyzed, and then the primary factors are pointed not by analyzing the results in different conditions

    摘要首先簡要介紹了無源位技術,然後著重分析了雙艦無源向交叉位以及其誤產生的機理,在此基礎上,給出了雙艦無源位情況下實施超視攻擊時,反艦導彈末制導雷達開機時刻對目標的捕捉概率模型,並通過模擬分析雙艦
  7. Some of the observer errors associated with timing over a measured length may be overcome by the use of the enoscope.

    員在車輛通過已知的時間中所發生的誤,可利用一種人形視車鏡加以消除。
  8. To measure the distance of heavenly objects close to us, we can use a method called " parallax ", a simple visual phenomenon that was well understood by ancient greek more than two thousand years ago and was then used to estimate the earth s radius

    要量度鄰近天體的,我們可採用視法parallax 。古希臘天文學家在二千多年前已提出視法的基本原理,並藉此地球的半徑。
  9. The sensitivity analysis and discussion of pose measurement error caused by the measurement errors of coordinate measuring machine and by the coordinate errors of three standard spheres on the base platform has been done in detail. the pose measurement error formulas as function of the measurement errors of coordinate measuring machine and the coordinate errors of three standard spheres have been deduced and it has been discovered that larger relative diatances among the three standard shpheres will efficiently minimize the influence of the measurement error of coordinate measuring

    推導出了三坐標量機的量誤、固平臺上三個標準球的位置誤對位姿量誤的函數,發現只要適當地增大固平臺上三個標準球之間的相對,就能夠有效地降低三坐標量機的量誤和固平臺上三個標準球的位置誤對位姿量的影響,從而提高了位姿量的準確性。
  10. Now, we have written a lot of software for chinese corpus processing, and have gained great achievements. but the outcome of them cannot answer our needs very well, and needs further improvements

    當前對漢語語料的加工結果,雖已取得了一的成績,但國家的評結果表明,其實際需要的還是很大的,還有待于進一步的提高。
  11. The new system uses short base - line to avoid the long base - line phase illegibility to get the signal arrive angle with higher precision, then use the phase differences without illegibility and the arriving angle to detected the emitter ' s range

    該系統首先通過短基線角,去除長基線接收機相位模糊,進而獲得更高精度的波達角度;然後通過無模糊的相位側量值和波達角度估計值確信號源與觀站之間的
  12. Compared with the ordinary optimization algorithm of calibration, this algorithm is simple, less computational and high accuracy. finally, the paper put forward the ranging method based on similar triangle principle. it gives two ranging models according cooperation object vertical in the optical axis or not vertical in the optical axis and does experiment

    最後,本文提出了一種基於相似三角形原理的方法,根據合作目標與攝像機主光軸垂直與不垂直兩種情況,給出了兩種模型,建立實驗系統並進行了實驗,通過近段與遠段的結果與誤分析驗證了此方法的有效性,能夠準確的確合作目標的位置,計算簡單,量精度高,具有重要的理論意義和工程使用價值。
  13. Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors. usually the target - receiver range can be got by the propagating time of a signal pulse. if this propagating time is larger than the pulse repetition period, it will mean that more than one signal pulse are on propagation

    主動水聲跟蹤位系統通過量脈沖信號的傳播時延可以得目標相對接收機的,當此傳播時延大於系統同步周期時,時延量就會呈現不確性,可能相若干個重復周期,導致位解多值,稱之模糊現象。
  14. The factors include ultrasonic wave frequence, condition temperature, ultrasonic converter instrinisic system error, hareware extended time, electricity noise and sonic noise in the spot, city power defmcient pressure and exceeded pressure, city power peak and pour. we adopt the following compensation schemes of error in the system. about ultrasonic wave frequence ' s effect to measurement precision, we can choose appropriate frequence according to the measured distance

    在空氣和液壓缸中影響精度的主要因素包括:超聲波的頻率、環境溫度、超聲換能器本身的系統誤(即探頭固) 、硬體時間延遲、工作現場的電噪聲和聲噪聲、市電的過壓、介壓噪聲以及市電的尖峰和浪涌噪聲,在本系統中採取了以下幾種誤的補償方案: ?對于超聲波的頻率對量精度的影響,只能根據選擇合適的超聲頻率。
  15. Generally, there are strict rules on the assessment of appropriate distances with regard to noise abatement. however, these may not be consistent with the views of local residents. what are the differences between them

    一般而言,噪音防治標準之量以音源至一得數據為判之基準,但民眾卻以其住宅所感受到之程度為基準,兩者間有一程度之落
  16. Describe fethee space with cuboid and ellipsoid and accordingly enhance the efficiency offeatur space ; 5. define a kind of distance according to the characteristic of tobacco leaf the distance consists of the differene of two featde spaces, a normalized distance and size proportion of two featur spaces ; 6

    根據煙葉的特徵義了一種,這種考慮了橢球特徵空間的方向別,待煙葉與已知級別之間的歸一化以及待煙葉與已知級別特徵區域的大小比例; 6
  17. The tactical missile seeker handover accuracy from midcourse to terminal guidance is researched. the small perturbation method is proposed to analyse error sensitivity of the seeker presetting parameters from error sources. firstly, the terminal guidance seeker presetting parameters are computed, based on the equations of a surface - to - air missile movement and a target movement. then the seeker presetting unaccuracy due to the command guidance radar measurement errors is also computed. it can be seen that the seeker presetting errors increase rapidly when the missile is close to the target, which leads to an important conclusion that the late seeker handover from midcourse to teminal guidance should be avoided

    研究復合制導的戰術導彈中末制導交班的導引頭預精度問題.提出用小擾動法分析導引頭預參數對誤源的誤敏感性關系.以中遠程防空導彈為例,結合導彈運動方程組和目標運動模型,計算了中末制導交班的導引頭預參數,並計算了在制導站雷達量誤下的末制導導引頭預參數的計算精度.可知,導引頭位參數的計算誤隨著彈目的接近而顯著增大,得到中末制導交班不能太晚的重要結論
  18. Abstract : the tactical missile seeker handover accuracy from midcourse to terminal guidance is researched. the small perturbation method is proposed to analyse error sensitivity of the seeker presetting parameters from error sources. firstly, the terminal guidance seeker presetting parameters are computed, based on the equations of a surface - to - air missile movement and a target movement. then the seeker presetting unaccuracy due to the command guidance radar measurement errors is also computed. it can be seen that the seeker presetting errors increase rapidly when the missile is close to the target, which leads to an important conclusion that the late seeker handover from midcourse to teminal guidance should be avoided

    文摘:研究復合制導的戰術導彈中末制導交班的導引頭預精度問題.提出用小擾動法分析導引頭預參數對誤源的誤敏感性關系.以中遠程防空導彈為例,結合導彈運動方程組和目標運動模型,計算了中末制導交班的導引頭預參數,並計算了在制導站雷達量誤下的末制導導引頭預參數的計算精度.可知,導引頭位參數的計算誤隨著彈目的接近而顯著增大,得到中末制導交班不能太晚的重要結論
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