遠方方位誤差 的英文怎麼說
中文拼音 [yuǎnfāngfāngwèiwùchā]
遠方方位誤差
英文
distant site error- 遠 : Ⅰ形容詞1 (空間或時間的距離長) far; distant; remote 2 (血統關系疏遠) distant in relationship 3...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 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...
- 遠方 : distant place
- 方位 : position; bearing; direction; points of the compass; placement
- 誤差 : error
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The device turns round at the range of 360, and locomotive block moves in linear guide in every unit zone. so optical fiber can arrive everywhere in focal plane. experiment result elucidation : the standard deviation of repeat error and positioning error less than 40 microns, the positioning precision of this system can reach demand
用7根單元機構模擬4000根單元的相互關系,實驗結果表明:機構的重復性誤差和目標點定位誤差的均方根值均在定位精度要求范圍之內,能夠滿足望遠鏡快速、準確的定位要求。It was proved that shanghai bell s p3s exchange could not terminate some alarm overhead bytes. instead, it sent back those bytes to mistake local errors for far - end faults. we suggest that shanghai bell terminate such bytes, improve the frame synchronization detection function and the processing of s1 bytes, and add far - end error indication on the multiplexing segment and low - order and high - order channels and far - end out - of - work indication on the low - order channel
測試結果表明,上海貝爾p3s交換機不能夠終結某些告警開銷位元組,而是將這些位元組進行回傳,從而將本端的錯誤誤認為是遠端的錯誤,建議上海貝爾p3s交換機按終結方式處理這些位元組,完善幀同步檢測功能和對s1位元組的處理,並增加復用段遠端差錯指示功能、高階通道遠端差錯指示功能、低階通道遠端差錯指示功能和低階通道遠端失效指示功能等傳輸告警功能。The radiation patterns with and whitout radome are calculated, and the angle difference in the maximum field point of their main clot show the bse of the radome, the bse from - 15 degree to 15 degree in direction, that been calculated and compared with the excited experimented data shows they coincide quite well
有天線罩時的遠區場和沒有天線罩時的遠區場相比較,兩個主波束對應的角度差即是天線罩的瞄準誤差,本文對方位掃描角從負15度到正15度進行分析。The algorithm, basing on convolution filtering technique and the fringes " gray values max - min distribution, can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement. the new algorithm makes image processing much caster and the technique of object shapes measurement more automated. the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed
本文採用投影光棚相位法和數字卷積濾波技術:根據柵線的條紋灰度值分佈具有極大極小分佈的特性,提出卷積濾波形貌光學自動檢測的圖像處理方法,有效地實現了頻譜自動移位,從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度;同時對採用兩光學主軸相交,且非遠心投影系統所產生的誤差進行了分析,並提出了修正方法。Though the hill equation was improved it cannot satisfied with the long distance navigation. here is considering the main satellite the following satellite and the target satellite format a triangle in the space which was useful in the relative navigation. the orbit of the following satellite was resolved by calculate the hill equation
盡管如此改進的hill方程依然不能滿足遠距離的相對導航,當從星在攔截目標星時,若目標星在攔截過程中發生軌道機動遠離主星,這里考慮到在已知從星軌道的前提下利用主從星以及目標星在空間形成的三角關系這一有利條件進行幾何法定位的研究,並通過數學模擬對其誤差大小進行了分析。As the traditional navigation system ca n ' t satisfy the requirements of the autonomous underwater vehicles ( auv ) navigation and position. we study a depthometer - doppler - aided strapdown inertial navigation system ( ddsins ) in combination of the developments of periodic navigation technique and some practical problem posed by the mathematical and variation of output data of doppler, furthermore, the digital simulation and semiphysica test are made to verify the validity of the algorithm, the main research work are as follows : design of the strapdown inertial navigation system of auv
由於傳統的導航系統很難滿足遠程水下航行器精確導航、定位的要求,本文在充分考慮使用特殊性的情況下,結合國內、外導航技術發展的實際狀況和發展方向,研究了水下航行器組合導航系統的誤差,重點解決了因多普勒輸出數據周期長和周期時變而給導航計算和濾波器設計帶來的問題,並進行了模擬和實物測試,模擬和實物測試結果表明本文所研究的設計方案合理,可以達到某型水下航行器導航、定位需要的精度。The radiation patterns at different scan angle from - 20 to 20 degree are presented, and the angle difference between the maximum / minimum field points of their main beam shows the bse of the radome. at different frequencies, the radiation from the antenna has been discussed when azimuth scan angle ranges between - 20 degree and 20 degree. the relationship between
200 ~ 200范圍內天線的和方向遠區場、方位差方向遠區場;得到方位瞄準誤差、瞄準誤差斜率和功率傳輸系數隨掃描角和入射波頻率的變化關系;並將所得數據與文獻數據進行比較,表明間接射線法簡單、有效且精度較高。Firstly, the study of real two - channel data recorded by the airborne battlefield radar is made based on the methods of gmti, which including the study of methods of two - channel equilibrium, that of the precious estimate of beam scanning angle, that of the doppler center, that of the compensation for pattern error and that of gmti and that of location of the moving target using the phase - comparison mono - pulse method
首先,結合動目標檢測方法,對機載遠程戰場偵察雷達實驗系統錄取的雙通道數據的處理進行了研究。內容包括兩通道均衡方法研究,波束掃描角精確估計方法研究,多普勒中心估計方法研究,方向圖誤差補償方法研究,動目標的檢測和干涉定位方法研究。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測距方法,根據合作目標與攝像機主光軸垂直與不垂直兩種情況,給出了兩種測距模型,建立實驗系統並進行了實驗,通過近距離段與遠距離段的測距結果與誤差分析驗證了此方法的有效性,能夠準確的確定合作目標的位置,計算簡單,測量精度高,具有重要的理論意義和工程使用價值。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定精度問題.提出用小擾動法分析導引頭預定參數對誤差源的誤差敏感性關系.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定參數,並計算了在制導站雷達測量誤差下的末制導導引頭預定參數的計算精度.可知,導引頭定位參數的計算誤差隨著彈目距離的接近而顯著增大,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定精度問題.提出用小擾動法分析導引頭預定參數對誤差源的誤差敏感性關系.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定參數,並計算了在制導站雷達測量誤差下的末制導導引頭預定參數的計算精度.可知,導引頭定位參數的計算誤差隨著彈目距離的接近而顯著增大,得到中末制導交班不能太晚的重要結論分享友人