azimuth data 中文意思是什麼
azimuth data
解釋
方位數據-
Processing methods and application of wide - azimuth angle seismic data in fangjiatai area
范家臺地區寬方位角地震資料處理方法與應用 -
A pure software solution is given in order to gather more tracking data. the reason of the zenith - blind - zone forming is analyzed detailedly. the conclusion is that the extent of the zenith blind zone was restricted by three parameters : maximum azimuth angular velocity of tracking mount, flight level and airspeed of the target
本文依據不改變系統硬體結構的研究思路，提出一個基於目標軌跡預測技術的解決過天頂跟蹤的方案構想，給出具體實施步驟，預計可使系統單站單圈次跟蹤採集到的有效數據總量提高約一倍。 -
In astronomical coordinates ( reference mark is north latitude 43. 9 ), analyzed is the effect of azimuth angular velocity, acceleration and altitude angular velocity, acceleration etc. some formulae were given to compute all correlative quantities. with regard to the course of data processing beforehand, the thesis focuses on outliers eliminating technology because of outlier increasing acutely of high - elevation tracking ( approaches 10 - 20 % )
在觀測坐標系中推導出確定天頂盲區理論范圍公式和滿足過天項跟蹤條件的關系式；在天文坐標系中以長春衛星觀測站（北緯43 . 9 ）作為計算基準，分別討論了方位、俯仰方向的角速度、角加速度等對天頂盲區的影響，在理論分析上為解決過天頂跟蹤問題打下了基礎。 -
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。 -
Using data of elevation, azimuth and height, winds at different altitudes above ground were calculated. these results were disseminated to the airport and other meteorological offices for aeronautical use
有了這些資料，便可計算不同高度的風向和風速。升空探測的結果隨即發送至其他氣象站及香港國際機場以供航空之用。 -
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。 -
Inversion of fracture density and azimuth using p - wave seismic data
利用縱波資料反演裂縫發育密度和方向 -
The system of radar antenna controller is used to control the movement of radar antenna, which can realize to search, capture, track the targets and transfer the data of radar azimuth angle and high - low angle to computer
雷達天控器系統是用來控制雷達天線的運動，實現對目標的搜索、截獲、跟蹤，並將天線的方位角和高低角數據傳遞給計算機。 -
The radar which is embedded on platform sidelooking, but the platform will be disturbed by airflow inevitably. so, the radar will have a small sloping angle, thereby, the doppler centroid that is not zero and doppler frequency rate need to be estimated from the raw echo data in order to focus in azimuth commendably
場景成像的合成孔徑雷達一般是正側視放置，但是載機不可避免的要受到各種擾動影響，雷達會有一定的斜視角，從而導致了多普勒中心頻率不為零，多普勒調頻斜率也隨著雷達斜視角改變。 -
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 -
Wave equation migration can preserve the kinetic characteristics of wave field, so this paper applies common - azimuth prestack depth migration technology to realize 3d processs for 2d seismic data
摘要波動方程偏移保持了波場動力學特徵，依此本文應用共方位角疊前深度偏移技術來實現二維資料三維化處理。 -
The different galactic gravitational potential have not clear influence upon the perigalactic distance, eccentricity and uncertainty of orbital parameters, but which is significant for other parameters, such as the apogalactic distance, semi - major axis, radial period and azimuth period and so on ; ( 5 ) the monte carlo simulation show that : the distribution morphologies of the orbital parameters which are produced by simulation data are separated into three types : gaussian profile, semi - gaussian profile and non - gaussian profile
不同的引力勢模型對近銀心距、偏心率和參數的不確定度等量影響較小，但是對遠銀心距、軌道半長軸、徑向周期和方位周期等參數影響較為明顯。 （ 5 ） montecarlo模擬的結果表明：根據模擬觀測數據得到的軌道參數的分佈形態大致可分為三類：高斯分佈、準高斯分佈和非高斯分佈；觀測數據對軌道參數的影響與樣本的選取、軌道參數的類型等有關。 -
The controller adopts tms320f240 dsp as its main control unit, using code wheel for angle measurement, using synchronous serial communications interface for the duplexing data communication between the controller and the upper computer, using rs - 232 interface for the communication between the pitch axis controller and the azimuth axis controller, and then developed the interface circuit to the motor driver
根據控制器研製要求，提出總體方案。控制器採用dsp作為主控單元，利用光電碼盤測角，利用同步串列通信介面與上位機進行雙向數據通信，利用rs - 232介面進行俯仰軸和方位軸控制器之間的通信，並研製了與電機驅動器的介面電路。 -
Method of exterior measuring shore beacon is put forward by using evaluation precision of original azimuth of missile aiming, mathematic model of aiming measurement error and data processing method
提出了方位瞄準測量誤差的數學模型及數據處理方法。對試驗數據序列的缺損值採用了插值的方法，對異常值進行了估計、檢驗。 -
Through the analysis of the test data and the new development in the relevant literature, some more realistic models for sea - clutter and multipath propagation is concluded and the simulation is accomplished in the software. they provide the foundation for low - altitude radar target detection & tracking techniques research. in the second part, radar low - altitude target detection & parameters ( elevation - azimuth - range delay - doppler shift ) measure are studied
（海）雜波和目標信號的多徑傳播嚴重影響了雷達低空目標探測與跟蹤的性能，通過分析國內外的有關試驗數據和最新的研究進展，總結出比較接近實際的海雜波和多徑傳播模型，並在有關軟體中實現了海雜波與多徑傳播的模擬，為進一步研究各種低空目標探測與跟蹤測量演算法提供了保證。 -
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。 -
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。 -
The spotlight mode sar provides the opportunity to collect sar data over a wide azimuth angular interval ( independent of antenna azimuth beamwidth ) with the potential for extremely fine azimuth resolution
聚束模式合成孔徑雷達（ syntheticapertureradar ， sar ）是一種具有極高解析度的雷達系統。 -
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。 -
In order to obtain an elliptically polarized light, whose ellipticity angle to be invariable and the elliptical azimuth may continuously change, or the ellipticity angle may continuously change and the elliptical azimuth invariable, the polarization is analyzed based on the matrix optics method when the linearly polarized light transits the / 4 and / 2 wave - plates, which are placed according to the certain azimuth, the reliable data are obtained
摘要為了獲得橢圓率角不變、橢圓方位角可連續變化和橢圓率角可連續變化、橢圓方位角不變的橢圓偏振光，採用矩陣光學方法對按一定方位角擺放的/ 4波片和/ 2波片，在線偏振光通過后的偏振態變化，進行了理論分析和實驗驗證，取得了可靠的數據。
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