觀測高度誤差 的英文怎麼說
中文拼音 [guāncègāodùwùchā]
觀測高度誤差
英文
error in observed altitude- 觀 : 觀名詞1. (道教的廟宇) taoist temple2. (姓氏) a surname
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 誤 : Ⅰ名詞(錯誤) mistake; error Ⅱ動詞1 (弄錯) mistake; misunderstand 2 (耽誤) miss 3 (使受損害...
- 差 : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
- 觀測 : observe; observation; viewing
- 高度 : altitudeheightelevation
- 誤差 : error
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The mathematical statistics method and extrema variance clustering method can be used to visible automatic classifying and reading of logging curves. the lithofacies classifying program basing on multi - mineral model analysis presents a new method to analyze logging - facies and more accuracy and visualized logging facies section can be reached by using this method. in addition, it supplies reliable lithologic layering reference for search and evaluation of oil / gas caprock and it also made up for the high cost of core - drilling and the inaccuration between lithic fragment description and depth
採用基於「數理統計-極值方差聚類法」的面向對象可視化操作方法可有效地解決測井曲線的可視化自動分層取值問題;而基於多礦物模型分析的巖相劃分程序又提供了一種新的測井相分析方法,能得到更為準確直觀的測井相剖面,為尋找和評價油氣蓋層提供了可靠的巖性分層依據,同時彌補了鉆井取心費用高和錄井巖屑描述與深度有誤差的缺陷。We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful
綜合分析認為: ( 1 ) 、這次冷渦在其發生發展過程中,其移動路徑是沿經圈直線南壓,攜帶的冷空氣勢力較強,形成槽后較強的垂直運動; ( 2 ) 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸,把源源不斷的西南暖濕氣流輸送到遼西地區,也就是急流軸的左前方位置,為這次暴雨的產生提供了充足的水汽來源; ( 3 ) 、低空急流不但為暴雨輸送水汽,其造成的較強的垂直環流也是產生強降水的一個主要原因; ( 4 ) 、 mm5模式以四維同化資料作為初始場,最大限度地避免了觀測誤差可能造成的積分不穩定,提高了模擬結果的參考價值。Besides, the information on actual height of lowest cloud base is used in constructing of cloud liquid water profile by using radiosonde profiles, that makes an improvement of relative accuracy of retrieved value of l at almost all altitudes by 5 - 20 % according to numerical simulation comparison. the lower the altitude is, the more the accuracy is improved
為減少由於回歸樣本中雲液水廓線的『失真』給反演造成的誤差,本文在對探空廓線作診斷建立雲液水廓線時,引入了實際目測的最低雲底高的信息。數值模擬比較表明該措施行之有效,使對流層中下層的幾乎所有高度上l反演值的精度提高5 - 20 ,觀測高度越低,精度提高越多。Conventional single - observer passive locating methods are low in speed and precision. moreover, corresponding locating precision is sensitive to direction measurement errors, which puts forward high demands on measurement equipments impersonally
傳統的單站無源定位方法總的來說具有定位時間較長、定位精度較低的特點,並且定位精度對方向測量誤差非常敏感,在客觀上對測量設備提出了較高的要求。In this dissertation, we studied the tcra1101plus total station position system, which introduced the principle and characters of the instrument ' s closed loop tracking system. also we explained the cause of prism ' s position error and brought forward mathematic model to correct, moreover, the good results has been drawn form the expenriments. the kinetic survey system have been realized, which the sampling rate attain more than 5hz and the position precision can be less than 2mm on condition that targeted - point moving slowly at the velocity below 2cm / s. having finished the survey system to examine whether the fine - tuning stewart platform in good status, we have finished mensurating the position reference of the fine - tuning stewart platform and the offset of the prism
在此基礎上研製了多臺儀器在線控制高頻采樣動態跟蹤測量系統,采樣率大於5hz ,在跟蹤小於2cm / s低速運動目標時,測量精度好於2mm ;完成對饋源二次精調系統的檢測,包括對二次精調平臺位置基準的標定和觀測棱鏡偏心差的測定;設計不同動態測量實驗,對全站儀動態跟蹤的誤差來源和特點進行了分析;從實驗角度,對全站儀的測量時滯及其穩定性進行了測試分析,給出了定量的結果;比較了全站儀和計算機的內部時間系統,發現兩者存在較大差異。Results show that a three - stepwise weight function correction method is effective and applicable and can be spread in other basins. it can eliminate the outlier of rainfall data and improve the accuracy of flood forecast
計算結果表明,採用雨量觀測誤差三步權函數修正法是有效的,能準確剔除雨量資料的粗差,改善雨量資料的合理性,提高洪水預報的精度。By using auto - adjusting boundary conditions and the method of three cubed spline curve fitting, the system software can recover both of the horizontal and vertical beam profile. the measurement system can also measure the beam landing screen error of cpt. it provides a important measurement and analysis tool to improve the performance of electron gun and dy, and improve the definition of cpt
系統軟體中,提出了採用動態確定邊界條件,通過對離散采樣點的三次樣條插值曲線的擬合恢復束斑x和y方向的輪廓,本系統既能準確客觀地描述電子束輪廓,又能夠準確快速地測量電子束著屏誤差等多種參數,為cpt電子槍和偏轉系統的性能改進與解析度的提高提供了有力的測試分析和研究手段。Traditionally, the gauge is recognized by human eyes. however, some of the subjective factors such as : observation angle, observation distance and fatigue may have effects on the value
這種判別方法受人的主觀因素如人的觀測角度,觀測距離及疲勞強度等影響,誤差很大,可靠性不高。As far as the system observation for accuracy evaluation of carrier rocket is concerned, there may exist different types of observed data and priors. heterogeneous information means that the different information describing the different characteristics of the same object. since all of the information is relevant to the same object, the fusion is possible. it is a key problem that how to fuse the heterogeneous information to obtain the better evaluation result. therefore, the different heterogeneous information and data is thoroughly studied, moreover, the mathematical description for information fusion of different parameter priors and data is constructed in this paper. based on their relationship between different parameters, indirect prior and observation data is transformed into prior in impact point observation space, which is fused with original prior by weight determined by maximum entropy rule to obtain the mixed posterior distribution. therefore, the test results can be given by combining posterior distribution and impact error observed data. then its application on evaluating guidance systematic error is elaborated as it applies trajectory tracking data, test value of coefficients of guidance instrumentation systematic error, impact point observation data and prior. especially, the advantage of this method lies in its application in case that guidance instrumentation systematic error may not be computed precisely. finally a detailed example on evaluation of carrier rocket is given to verify the theory
為充分利用運載火箭觀測中的不同觀測空間和過程的信息來進行精度評估,針對該背景建立了異質先驗融合的數學描述.研究了飛行試驗中不同觀測空間和過程的異質先驗信息和數據,基於不同觀測過程的解析關系,將間接過程的先驗和觀測數據算出的后驗分佈轉換成落點觀測空間上的先驗,與原落點的先驗進行了最大熵加權融合,得到混合后驗分佈,從而結合落點觀測數據給出評定結果.在無法解算出精確的制導工具誤差系數的情況下,這種方法充分利用了彈道跟蹤數據、工具誤差系數的地面測試先驗值、落點先驗及落點數據,穩健性更好,準確性更高Accuracy of the measurement system is verified by standard signal sources. frequency tracking error does not reach 50hz. the measurement system has merits of visual display and high accuracy, which is an ideal measurement system for dual - path saw mass sensor
應用標準信號源驗證了測量系統的精確性,頻率跟蹤特性誤差在50hz以內。該測量系統顯示直觀,精度高,是雙聲路聲表面波質量傳感器理想的測量系統。In the non - gaussian filtering algorithm, the measurement errors incorporating the multipath effects are modeled as the non - gaussian noise, and the filter are modified according to the score function. this algorithm, designed to track low - elevation targets, avoids the degrading of me performance because of ;. c non - gaussian noise in the filter
在非高斯演算法中,由於多徑誤差的影響,目標高度方向上的測量誤差表現為非高斯噪聲,首先建立觀測噪聲的非高斯模型,然後利用非高斯噪聲下的濾波演算法跟蹤低空目標。This method has four parts : data acquisition, image processing, pixel number extraction and coverage calculation., based on the precision assessment, the error is very small, and it has advantages such as objectivity, consistency and high precision, compared with visual estimation methods
精度評價表明,該方法測定的綠色植被蓋度誤差很小,與目視估測方法比較,它具有客觀、一致和精度高的優點。The quantized lp coefficients are replaced by the unquantized lp coefficients in the frequency domain expression of the feel weighted filter. the error signal has more similar envelope shape, and the hearing effect is better than before because the unquantized lp coefficients have more accuracy than quantized lp coefficients
由於未量化的線性預測系數具有更高的精度,因此,誤差信號通過修正後的感覺加權濾波器以後,具有與語音信號譜更加相似的包絡形狀,從而更好地利用共振峰對誤差的掩蔽效應,達到更佳的主觀聽覺效果。At present, most methods to deal with settlement data are rough. commonly. no error treatment has been taken on observational data, which causes a low precision on results
目前對沉降觀測數據的處理大多較粗糙,一般不對觀測數據進行誤差處理便直接應用,沉降數據處理結果普遍精度不高。Use the magnetic vector for the observation information, the paper estimate the location and rate of the satellite, analysis of simulation results and the sources of error. to further enhance navigation accuracy, the paper study the unscented kalman filter, compare with the extend kalman filter. in the same initial conditions of the extend kalman filter, we do the simulation
其次,基於磁環境模擬系統的測量數據,本文研究了擴展卡爾曼濾波演算法,建立了衛星的運動學和動力學方程,以地磁場矢量為觀測信息,對衛星位置速度進行了估計,並分析了模擬結果及誤差來源,為了進一步提高導航精度,本文又研究了unscented卡爾曼濾波演算法,給出了原理及步驟,並與擴展卡爾曼濾波進行了比較分析。Fully autonomous layered star identification algorithm, which divides the detected stars to lbs and lds, gives priority to lbs in making star triangle and identification, so can find the matching star quickly. it takes the maximum matching reliability and expanding index at the edge of na to reduce the influence of position error, magnitude error and fake star, so have high identification correct rate. it can be used for full and local sky star identification
全天自主分層星識別演算法,採用分層的方法,以局域亮星為主構造和識別觀測星三角形,減少了待識別的觀測星三角形數量,具有較高的識別速度;採用最大匹配可信度和索引的邊緣擴充方法,可以在一定程度上解決位置誤差、星等誤差和偽星干擾等問題,具有較高的識別準確率;既可以進行全天自主星識別,又可以進行局部星識別。The error has an effect on image registration and synthesizing. for synthesizing high resolution image, the angles between channels need be measured, then calibration of eut in orbit will be carried out
這些誤差必然會影響圖像配準、合成等。為了合成高解析度的圖像,需要測出各通道軸向夾角,對其在軌校準,從而減小觀測上的誤差。The two complementary models are used in such a way that errors of the model are forecasted by a neural network model so that flow forecasts can be improved as new observations come in
本耦合模型的工作原理為:通過人工神經網路來預報模型的誤差來提高用新觀測資料得到的流量預報精度。As such in this study, attempt was made at coupling the artificial neural network ( ann ) with the xinanjiang conceptual model with the view to enhancing the quality of its flow forecast
鑒於此種情況本文將人工神經網路演算法同新安江模型相耦合以提高模型預報的精度。計算中使用了近期觀測資料以及模型中徑流流量預報產生的誤差殘差。So it is rough this method to forecast, which educes approximate forecasting value and the error is bigger comparatively. this method ca n ' t be satisfied when calling for good precision
因此,這種方法預測比較粗糙,只能在宏觀上有個大致的預測,預測誤差比較大,對于精度要求比較高的很難滿足。分享友人