position radar 中文意思是什麼
position radar
解釋
目標位置測定雷達目標坐標測定雷達-
They were able to position the yacht by means of radar.
他們能夠用雷達測定快艇的方位。 -
The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。 -
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。 -
An array of lasers fitted on the car bumpers, radar and global positioning systems feed data into the on - board computer to determine its location and position
汽車緩沖器上被安裝了一排雷射燈，雷達和全球定位系統隨時將數據傳入車載計算機用以確定位置。 -
The traditional air defense system which detect and attack targets only depend on ordinarily radar was in an exceedingly passive position and difficult to ward off blows when the cruise missile was used in war
它的出現使得傳統的僅僅依靠普通雷達探測目標和引導武器射擊目標的防空系統處于極端被動和難以招架的局面。 -
At first the designation and actualization of a detection system which would be used to detect the position of radar scanner was depicted. besides introducing the principle, configuration, hardware circuit and software module the author described the designation of hardware circuit and usage of liquid crystal display module
首先闡述了光電雷達掃描機構測試系統的設計與實現，包括系統的原理組成、硬體電路和軟體模塊，其中著重介紹了硬體電路的設計和液晶顯示模塊的使用。 -
( 2 ) if we take the dgps as position sensor, it can improve the precision of radar track target prominent, else if we take the non - difference gps, it can also improve the precision in quite degree
（ 2 ）如果ais的位置傳感器採用的是差分gps ，則可以顯著提高雷達跟蹤目標的精度，如果採用非差分gps ，也可以相當程度的提高雷達跟蹤目標的精度。 -
In conformity with this means, we study that the changing of radar and platform coefficients influences the target location, and present the way to analyze the location accuracy through the platform position accuracy, platform attitude stability and radar timing accuracy
在此基礎上，論文剖析了雷達及平臺參數變化對目標定位的影響，提出了通過平臺位置精度、平臺姿態穩定精度和雷達定時精度來分析目標定位精度的方法。 -
For slow targets whose doppler frequencies fall into clutter doppler band, the performance of frequency domain one - dimension filtering is seriously degraded. in an airborne radar, there is interdependence between the clutter doppler frequency and spatial position. space - time adaptive processing ( stap ) utilizes this interdependence to suppress clutter and get perfect main - lobe and side - lobe clutter suppression
空時自適應處理利用機載雷達地雜波多普勒頻率與地雜波空間位置的耦合性，根據目標和雜波在空間-多普勒頻域二維空間分佈上的差別對雜波進行抑制。 -
In this dissertation, we systematically study the pulse - position - modulated pulse - sequence ( ppm - ps ) radar signal theory and its applications to radar / fuze systems
本文系統地研究了脈位調制脈沖串雷達信號理論及其在雷達引信中的應用。 -
The radar detecting system discovers invading missile in its valid detecting range, measures and gets the invading missile ' s position information, sends instruction and fires counterattacking bomb in proper time
雷達探測系統在探測范圍內及時發現來犯目標，測定目標的位置信息，適時發出點火指令發射反擊彈。 -
We want a radar position during dumping. please cover us on your radar
放油時我們需要雷達定位，請在雷達中觀察我們。 -
This thesis mainly focuses on nonlinear filter and data fusion problems, the main results are as follows : 1. this thesis presents fundamental theory, position model and error analyses of non - cooperative bistatic radar positioning system
本文從非線性濾波演算法和數據融合兩個方面進行研究，主要工作成果如下: 1 、介紹了非合作式雙基雷達定位的基本原理，定位模型以及誤差分析方法。 -
The following figures show the + / - 120 - degree coverage of the radar scan relative to your nose. the radar beam sweeps back and forth from your 8 o ' clock to your 4 o ' clock position
下圖標明了雷達在機頭+ / - 120度掃描的覆蓋范圍。雷達波束在8點和4點之間來回掃描。 -
In the application of tf / ta2 flight control system, significant issues arise due to position errors, which is destructive for low altitude penetration aircraft. the concept of utilizing terrain contour matching technique to fixing the errors is introduced, and this concept is essential for military tf / ta2 flight applications without gps and forward looking radar in our nation
論文首先簡要介紹了綜合tf ta ~ 2飛行控制系統的相關背景知識和技術，包括航跡規劃、飛行控制和航跡跟蹤等相關技術，給出了地形匹配系統設計和應用的技術背景和相關理論。 -
Usually dual sources ( radar and decoy ) have the same or alike modulation and position. in this dissertation, method of doa identification is studied in order to tracking individual radiation source correctly. the main efforts and results of this dissertation can be summarized as follows : 1
本文重點研究在兩點源（雷達和誘餌）空間張角很小、時域重疊、信號調制參數相同或相近的情況下， prs有效分選輻射源到達方向（ directionofarrivals ，即doa ）的方法，以實現對待攻擊輻射源的正確跟蹤。 -
The rdpds processes the radar data from various primary and secondary radars to present the aircraft position and its related information, e. g. aircraft callsign, altitude, ground speed, aircraft category, etc. on the radar display
雷達數據處理及顯示系統可以處理來自不同的一次及二次雷達的數據，然後在屏幕上顯示航機的位置及其有關的資料，包括航機的代號、高度、速度、飛機種類等。 -
Synthetic aperture radar ( sar ) has been widely used in both military affairs and civilian fields because of its high - resolution, independence of both time and weather conditions, etc. usually, sar could only be used to detect and image static targets instead of moving targets for the reason that the position drifting will make local mistake in the general sar image, which is usually caused by the velocity of the moving targets in the ground range direction, and when it comes to the target with strong scatter coefficient right in the drifting position, the moving target could not be detected at all
合成孔徑雷達（ sar ）由於其高解析度、全天時、全天候等優良性能，已經在軍事和民用領域得到越來越廣泛的應用。通常，合成孔徑雷達只能對靜止目標進行檢測和成像，動目標由於其徑向速度而在常規sar圖像中有一個位置偏移，使成像造成局部錯誤，而且當偏移處有強散射目標時，動目標將無法檢測。軍事上的應用也要求合成孔徑雷達能對運動目標進行有效地檢測和成像，因而運動目標檢測（ mti ）及其成像日益成為合成孔徑雷達領域研究的一個熱點。 -
The paper makes use of doppler radar data to mesoscale numerical model, through adjusting divergence fie ld, vertic al velo city fie id etc. to improve on initial field. the investigation results show that there is a improvement in the forecasting effects, precipitation position is closer to practicality
試驗結果表明，在中尺度數值模式中利用多普勒雷達觀測資料，對初始場進行修正，通過散度和垂直速度場等的調整，有效提高預報效果，使得雨區范圍和雨量更接近實況。 -
Our products are widely used for metallurgical, petroleum - chemical, light - textile, architectural, wood working, mineral - dressing equipment and food machinery as well as aerospace industry, etc. they can be used in architectural hoists, tower cranes, elevators, escalators, passenger conveyors, wood working machines, mineral - dressing for gold, continuous casting machinery, tube welding machinery, bottling machines, weaving machinery, universal machines, precision indexing and radar equipment, etc. as transmission devices for power transmitting or precision position driving
本公司產品廣泛地應用於冶金石化輕紡建築木工選礦食品等機械設備以及航空航天等工業部門，比如可用在建築升降機塔吊電梯扶梯自動人行道木工機械黃金選礦連鑄機械焊管機械罐裝機械編織機械通用機械精密分度以及雷達等設備上作為傳遞動力或精確位置用的傳動裝置。
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