time azimuth 中文意思是什麼

time azimuth 解釋
時間方位
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • azimuth : n. 1. 方位（角）。2. 【天文學】地平經度。
  1. The cost of the system is reduced and the structure is predigested, and it makes the detection system can measure distance, relative velocity and azimuth angle at the same time

    這樣做既提高了系統的經濟性，簡化了結構，又使得系統具有了同時測量目標距離、相對速度和方位角的功能。
  2. We pay close attention to irrigation and water scape field all the time and we have good cooperation relationship with brother companies and we are capable of providing our customers with multi - azimuth information for irrigation and waterscape

    我們時刻關注著灌溉與水景領域，同業內有著很好的合作關系，能為客戶提供多方位的灌溉與水景資訊。
  3. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  4. Abstract : an easy method for determining the lateral fold number of 3 - d seismic swath is presented. it is described in details that the non - vertical time error and selection method of vertical line direction. based on existing conditions of 3 - d seismic data acquisition in coal field, an assumption of 3 - d broad azimuth data acquisition is provided to remove the disadvantages of non - uniform azimuth distributions from old observation system

    文摘:提出了線束型三維觀測系統橫向覆蓋次數的一種簡易確定方法，詳細論述了非縱誤差的實質及縱測線方向的選擇方法，根據目前煤田三維數據採集現狀，提出了寬方位角的設想，以便克服以往三維觀測系統中方位角分佈不均的弊端。
  5. Time and altitude azimuth

    時間高度求方位角法
  6. Time azimuth table

    時間方位表
  7. Effect of spatial separation in azimuth on the threshold of forward masking in time domain

    聲源空間分離對向前時域掩蔽閾值的影響
  8. At the same time, the fully using of digital map helped to scientifically set the location of shots and detectors, and the quality control was carried on in the distribution promptly to check up the cover frequencies of underground bin, azimuth and offsets to make sure the completeness of seismic data in city area ( burg, j. b, 1964 ; brown, a. r, 1992 ; sherff. w. c, 1990 )

    同時，充分利用數字地圖，科學地布設炮點和檢波點，並及時地對城區內地下面元的覆蓋次數、方位角和炮檢距的分佈進行質量監控，確保城區內地震資料的完整性（ burg ， j b ， 1964 ； brown ， a r ， 1992 ； sherff
  9. Higher - speed dsps extend possibilities to design more reliable, functional and compact radar signal processing systems. this thesis presents a high - speed dsp system based on tms320c6701 dsp to real - time implement azimuth compression

    本論文結合電子所機載合成孔徑雷達實時數字成像處理器工程項目，設計開發了採用tic67dsp作為核心處理部件進行方位處理的高速信號處理系統。
  10. In the second chapter, a wideband mimo channel model with multiple - tap was integrated according to the angle of departure of the transmitting signal and its spread angle, the angle of arrival of the receiving signal and its spread angle, power azimuth spectra, doppler spectrum and the geometric construction of antenna array both sides of transmit and receive, on the basis of full research on the theories of space - time channel model proposed in the recent literature

    第二章在對最近文獻中提出的一些空時通道模型理論進行詳細研究的基礎上，根據發射信號的離開角及其擴展角、接收信號的到達角及其擴展角、功率方位譜、多普勒譜和收發兩端天線的拓撲結構，綜合了一個多抽頭的寬帶mimo通道模型。
  11. Drilling track is key factor which decide trenchless success or failure, but controlling drilling track stay around rectifyed phase at the present. guided the theory of force is the key affectting the drilling track, the paper discuss primary factors on contralling drilling track, and advance the formulary ahout reckoning deviation force and azimuth force, expect to achieve the aim that drilling track were controled real time and be anticipated, and have the initiative on drilling track contaolling

    巖層鉆進軌跡是決定非開挖成敗的關鍵因素，目前對鉆孔軌跡的控制僅僅停留在被打糾偏層面上，本文在力是影響鉆進軌跡本質因素理論指導下，對影響巖層鉆進軌跡控制的因素進行了理論探討，並針對造斜力和變方位力提出了計算模式，希望最終能實現鉆孔軌跡的實時監控與調整，變被打糾偏為主動鉆進。
  12. At the same time, the radar tracked the movement of the radar reflector and determined the range, azimuth and elevation of the reflector, allowing computation of winds

    同一時間，雷達不停追蹤著雷達反射器，測定其距離方位及仰角，以計算風向和風速。
  13. At the same time, the radar tracked the movement of the radar reflector and determined the range, azimuth and elevation of the reflector at intervals of one minute, allowing computation of winds at different altitudes

    同一時間，雷達不停追蹤著雷達反射器，每隔一分鐘測定其距離、方位及仰角，以計算不同高度的風向和風速。
  14. The coordinate transformation technology is adopted to compensate real time attitude angles of the swinging ship on the azimuth and pitching axis of tracking equipment in order to stabilize los and improve precision

    故採用坐標變換技術，在跟蹤設備的方位和俯仰軸上對船搖姿態角進行實時補償，達到視軸穩定、提高精度的目的。
  15. In chapter 3, the real time data is imaged in the r - d algorithm. at first, we compress the signal in range and azimuth direction respectively, at the time of the processing ; we will deal with rcmc in r - d domain

    第三章研究實測數據的r - d演算法成像，我們對實測數據進行距離向和方位向的壓縮，並且在r - d域進行距離徙動校正（ rcmc ） ，從而實現成像。
  16. Considering the huge data and long simulating time, this dissertation employed the distributed simulation high level architecture, thus reduced the simulating time and improved the simulation efficiency through real time range compression and parallel azimuth compression carried out on two computers

    針對星載sar數據量大，模擬時間長。本文採用基於hla的分散式設計，通過採用距離壓縮實時處理和方位壓縮由兩臺計算機同時處理的方法減少模擬時間，提高了模擬效率。
  17. This dissertation employed a step - by - step azimuth processing way which can make full use of the storage trait of the echoed data, to implement range curve compensation directly in the time domain, without

    在距離壓縮之後，每次取一個陣長的數據子矩陣進行距離彎曲校正和方位向壓縮，這樣逐個孔徑地依次完成成像處理，得到目標的sar圖像。
  18. Some constraints such as kick - off - point, build - up rate of bottom - hole assembly ( bha ), toolface orientation, inclination and azimuth etc. are involved in this novel model quantitatively for the first time. its high design efficiency and accuracy are validated after used in more 22 non - straight wells

    從系統論的角度指出本文研究的目的與意義在於如何綜合運用已有的研究成果、硬體環境及技術人員的經驗與直覺，使得井跡控制技術達到「整體最優」 。
  19. ( 1 ). here we build the system space geometry model : the transmitter and receiver fly on different platforms and at different height, two flight paths are unparallel. based on the chirp signal and the taylor series, we analyze the range history and synthetic aperture time, then demonstrate the equation of the azimuth resolution about air - born bistatic spotlight synthetic aperture radar, meanwhile we obtain the equations of doppler bandwidth and doppler frequency modulate rate

    本文以機載聚束式合成孔徑雷達成像作為研究背景，主要完成了以下幾方面的工作: （ 1 ）建立了一種機載雙站聚束式sar空間幾何數學模型，對方位分辨力進行了理論分析，進行了數值分析與模擬，討論了不同條件對雙站聚束模式sar系統分辨力的影響。
  20. But the performance of the mimo system has deep relation with the properties of the multi - path signal in that environment, particularly affected by the correlation, the time spread and the azimuth spread of each path. therefore, in order to achieve potential huge capacity of the channel, gain prospective performance, choose appropriate system configurations and design excellent algorithms for signal processing, it is very important to realize and master the characteristics of channel in the indoor and the outdoor environment

    而多入多出系統的性能，在很大程度上跟所處環境的多徑信號性質有關，特別與各條路徑之間的相關度、時延擴展和角度擴展有很大的關系，因此，了解和掌握戶內和戶外環境中無線多入多出通道的特徵，對實現潛在的巨大通道容量、取得預期的性能、選擇合適的系統結構和設計優良的信號處理演算法至關重要。
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