角瞄準誤差 的英文怎麼說
中文拼音 [jiǎomiáozhǔnwùchā]
角瞄準誤差
英文
angular pointing error- 角 : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
- 瞄 : 動詞1. (視力集中;注意看) gaze at; take aim at 2. (迅速地看) glance
- 準 : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
- 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...
- 瞄準 : 1 (調整高低方位 使對準) take aim; aim; train on; lay; sight 2 [軍事] acquiring; homing on; layi...
- 誤差 : error
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To ensure the reliability of tracking the target, signal attenuation and boresight error must be predicted accurately
要保證導彈跟蹤目標的準確性,必須預測在給定掃描角下的信號衰減和瞄準誤差。Beam deflection produces boresight error ( bse ) which is defined as angle shift between viewing direction and true direction. boresight error slope ( bses ) is defined as the ratio of angle shift to the tracing angle of the antenna
波束偏移的主要後果是產生瞄準誤差,使目標的視在位置與真實位置有一個角度差,這個角度差就是天線罩的瞄準誤差。This method applied to the measurement of precision of original azimuth of underwater to surface missile, through measuring exterior information using optical measurement device, measuring accurate position of shore beacon, calculating error of missile aiming system
通過光測設備測量系統外部的信息,測量岸標的精確位置,來推算系統的瞄準誤差。對外測岸標法,建立了數學模型,詳細討論了外測岸標的標定方法、原理和方位角的解算。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。For missile, either strategical or tractical, the most important thing is to attack the target accurately. this depends upon the accurate location of the larget by the missile radar. for protecting radar antenna from external environment and for air - dynamical requirement, a radome is used to enclose the antenna. but the radome interferes in the orientation of the antenna, degradaties its perfor - mance, decreases the power reaching the target, and most importantly, it produces so called boresight error ( bse ) that is, makes the antenna shows a slightly different direction of the target from its true direction, the boresight error is define as the angle shifted, and the boresight error slope ( bses ) is defined as the ratio of angle shift to the tracing angle of the radar antenna. to predict the boresight error and boresight error slope is an unavoiding chief task in designing radome and in its operation
在戰略和戰術雷達制導導彈中,一項重要的工作就是對目標的準確跟蹤,這取決于導彈雷達對目標的準確定位。為了保護雷達天線不受外界環境的影響,天線罩被應用進來,但天線罩在保護天線不受外界惡劣環境影響的同時對天線電磁輻射產生某些干擾,使天線的電氣性能降低,影響天線的功率傳輸,更重要的是產生瞄準誤差。它使目標的視在位置與真實位置有一個角度差,這個角度差就是天線罩的瞄準誤差。1550nm is chosen as the work wavelength, cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system. the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system, beam divergence angle, pointing error, and error signal extraction. compared with existed optical wireless communication system, the design scheme proves applicable
通過對通信系統工作波長選擇、光學天線選擇等闡述,選擇了1550nm作為系統工作波長、卡塞格倫( cassegrain )收發合一天線作為系統光學天線;通過對apt子系統功率測算、束散角和瞄準誤差、誤差提取信號等的討論,給出了apt子系統結構和理論設計指標,並將其與現有的光無線通信系統進行比較,說明該設計方案是可行的。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。But repetitious launching tests show that there is a remarkable error in the measurement of the angle which is measured in the technical position. the error has so notable effect on sight precision of weapons that this scheme is abandoned in the design of later missile weapons
但經多次發射試驗證明,技術陣地測量的兩基面夾角存在較大誤差,對武器的瞄準精度產生了較大影響,以致后繼的某些型號放棄了基面轉換方案。分享友人