azimuth-range 中文意思是什麼
azimuth-range
解釋
方位-距離-
Azran azimuth - range
方位和距離 -
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。 -
By calculating parameters including the link length, the azimuth angle, the elevation, the optical power that the inter - satellite optical cdma communication system will receive, the variation range of the azimuth angle and the elevation from the optical antenna of atp are understood well. by analyzing the factors to impact bit - error - rate ( ber ) from the received power, multi - user disturbing, background noise, wavelength, bit rate etc, measures to guarantee high performances of the system are obtained, especially those for smoothing the fluctuation of the received optical power from host platform vibration
分析研究了衛星光cdma通信系統中衛星仰角、方位角和距離，給出了探測器能夠接收到的光功率以及atp子系統捕獲及跟瞄的范圍;對衛星光cdma通信系統性能模型和基於衛星振動系統性能模型的研究，分析了多用戶干擾、接收光功率、背景光噪聲、振動偏差以及碼速率對系統誤碼率的影響，給出了相應的改進措施。 -
Its high resolution in range is fulfilled by using pulse compression method. its high resolution in azimuth is achieved by utilizing the doppler information among the signals received by sar at different locations. hence, the acquired image of the targets is of very high resolution
它採用距離向的脈沖壓縮技術和方位向不同位置上接收到的脈沖間的多普勒信息來獲得兩維的高解析度，從而得到高解析度的目標圖像。 -
By computing the between two resolution units, we can estimate terrain azimuthal slopes and derive estimate of terrain elevation. the terrain contour is determined uniquely by ay / from azimuth slop on range gates. american began to study p - sar three - dimensional images technology in 1990s
Schuler已經證明，對於一個均勻分佈場景， sar圖像上兩個相鄰分辨單元的極化橢圓方向角偏移量，與地形方位向坡度的對應關系是線性唯一的，地形方位向的傾斜度可以通過解唯一地被測定。 -
By analyzing the realization of range migration, we conclude that the pipeline structure is effective to implement azimuth processing
通過分析距離遷移校正環節的實現過程，提出用流水線結構完成方位處理並且在并行處理平臺上實現。 -
Range and azimuth compression are the two crucial steps of sar imaging
方位處理是合成孔徑雷達成像演算法中重要的一步。 -
The result shows the effect of uniform wind fields rebuild is good, however the vertical velocity in shift one is not ideal. it is found the azimuth range of receiver is so wide that it can receive echos from different orient
結果顯示，對勻速風場反演的效果很好，在進行非勻速（變向和變速）風場的模擬時發現反演的垂直速度很不理想，但反演的水平風場效果較好。 -
Firstly, the principle of high resolution sar and theoretical imaging model were concisely introduced. pulse compression for line frequency modulation pulse signal, resolution of range direction and azimuth direction, and doppler history were discussed subsequently. in accordance with sar signal processing, range immigration was also involved
本文首先分析了合成孔徑雷達高分辯力成像機理和sar成像理論模型，討論了線性調頻脈沖信號的匹配濾波（脈沖壓縮） 、 sar距離特性、方位特性和多普勒歷史，同時針對sar成像信號處理，分析了成像處理的基本原理和成像處理中的距離遷移校正等關鍵問題。 -
Scatterring centers from each azimuth range profile are extracted firstly, and then turn two dimension distributed target scatters into one dimension and integrates all scatters energy along one dimension
模擬結果表明，該方法較距離擴展目標檢測方法的檢測性能有明顯改善，且其檢測性能隨著角解析度的提高而進一步改善。 -
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。 -
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。 -
The platform implements the signal processing dataflow of range - doppler algorithm such as range compression, clutter lock, azimuth preprocessing and azimuth processing. this paper derives that multiplying 1 / 2 factor can avoid fixed - point overflow
該平臺能完成r - d演算法中的距離向脈沖壓縮、雜波鎖定、方位向預處理及方位處理功能本文針對定點分裂基fft演算法，推導出加入1 2衰減因子可以避免定點運算時產生的溢出。 -
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。 -
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。 -
Comparing the old iteration algorithm, the rapid iteration algorithm is which decomposes binary variable iteration, which include the hit - point range error iteration and hit - point azimuth error iteration, to be two unary iterations
這種方法與慣用迭代方法相比，其優點是將落地點射程偏差和方位角偏差的二元迭代分解成兩個一元迭代，這樣不僅可大大提高彈道迭代的收斂速度，而且可以滿足任何需求的迭代精度指標。 -
First, we go over the basic theory of sar making a theoretical preparation for following chapters, introducing the principle of sar, range and azimuth resolution, range migration, principle of the stationary phase
本文首先回顧了機載合成孔徑雷達的一些基本問題，介紹了合成孔徑雷達的基本原理、距離向和方位向解析度、距離徙動、駐定相位原理等為后續章節做了理論上的鋪墊。 -
With the development of sar imaging technique and the improvement of sar imaging quality, high range and azimuth resolution has come true. as a result, sar has been an important tool for scientific research and remote sensing. it will take on a supreme future in both military and civil
隨著sar成像處理技術的發展，其成像質量不斷提高，它成為當今高科技條件下一種不可取代的探測、偵察手段，在軍事、經濟和科學研究等方面都有重大價值和廣泛應用前景。
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