雷達間隔 的英文怎麼說
中文拼音 [léidájiāngé]
雷達間隔
英文
radar separation- 雷 : 1. (雲層放電時發出的響聲) thunder 2. (軍事上用的爆炸武器) mine 3. (姓氏) a surname
- 達 : Ⅰ動詞1 (暢通) extend 2 (達到) reach; attain; amount to 3 (通曉; 明白) understand thoroughly...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 隔 : partitionseparate
- 雷達 : [訊] radar (縮自 radio detection and ranging)
- 間隔 : interval; space; spacing; blanking; blank; region; distance; gap; intermission
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Radar unserviceable, i can no longer assistant with you, reduce speed by 30knots to increase separation, report over kc
雷達不工作,我不能再協助你。減速30節增加間隔,飛越kc報告。Three - dimensional high - density space / time soundings serve as the main body of data consisting of 3 - hr interval doppler probings, 10 - 30 min rainfall intensity, surface raindrop sizes sampling and gps - guided flight cloud physics detections with output taken at 2 - sec and 200 - m intervals. and specific systems associated therewith are developed for multiple - way communication and data collection and storage, a platform for analysis, retrieval softwares for dominant items and multi - scale cloud models - all constitute a system of techniques for meso to microscale observations and analysis. 2 ) atmospheric water resource and macroscopic rainfall properties in dry periods of spring and autumn of the target region
以加密觀測的多普勒雷達、 3小時探空、 10 30分鐘雨強、地面雨滴譜等間隔取樣及在gps引導下的飛機雲物理探測等獲取的三維高時空密度的綜合探測為主體;配合專項設計開發的多路通訊採集存貯系統、多類信息的分析處理平臺、主要觀測項目的分析反演軟體,結合多尺度雲系模式,綜合構成層狀雲系中微尺度探測和分析處理技術方法。Ftt makes the frequency sampled at a same frequency interval on unit circle, and the frequency interval limits the practical range - precision of the radar, and makes range precision at an equivalent level with range - resolution
由於fft的實質是頻率在單位圓上的等間隔采樣,其采樣間隔限制了雷達的實際測距精度,使得其測距精度與其距離分辨力處于同一量級。Basing on the mission requirement of a new type radar, this paper analyses the weakness of traditional mtbf centered design concept, and presents a new design concept of reliability, maintainability, and supportability ( rms ) centered maintenance free operating period
摘要根據新型雷達任務的需要,對傳統的以平均故障間隔時間為中心的設計思想的不足進行了分析,提出了基於無維修工作期的可靠性、維修性、保障性設計思想。Wake vortex separation standards are used to prevent hazardous wake vortex encounters which mainly found in the final approach course within the airport termination zone. firstly, this paper analysis the mechanism of the vortex decay and research the influence on the safety of the flight ; then. several different radar wake vortex separation standards are compared and some basic guidelines are developed to establish the future vortex standards. in addition, one kind of advance vortex classification for the civil airplane is proposed. secondly, an encounter hazard model which established for the following aircraft and a simple vortex decay model which mostly concern with the proceeding one are developed ; and a safe separation model can be derived from the both. finally, through the simulation calculation, the correctness of the vortex classification of different types of aircrafts are tested and proved
本課題對雷達管制條件下的最小尾流間隔標準進行了較為詳細的分析和研究;首先對尾流的形成和消散機理以及尾流對飛行安全的影響做出了詳細的分析,然後就目前實行的幾種不同的最小尾流間隔標準進行了比較和分析,提出了相關的幾條準則和一種改進的機型尾流分類標準;在這之後,採用理論分析和統計數據分析相結合的方法,建立了尾流危險遭遇基本模型和尾渦消散模型;並在此基礎上對民用航空不同機型的尾流分類的合理性進行了計算和評估,為最小尾流間隔標準的確定和改進提供了初步的理論依據。Detailed diagnoses is made on a heavy - hard rain in the northeast qinghai - xizang plateau using ncep data of 1 x 1 with 6h intervals, more complete and integrated conventional observational data and the data set of automatic meteorological stations in plateau and new generation doppler radar data and satellite images and etc. the following conclusions can be drawn : 1. the distribution of heavy - hard rain, which is characteristics of valley topography in northeast qinghai - xizang plateau is obviously effected by topography. the distribution of yearly mean precipitation and the frequencies of heavy - hard rain in this area are descending from east to west
本文首先利用ncep時間間隔為6小時的1 1的格點資料、更全面、更為完整的常規探測資料和高原地區布設的自動氣象站資料、新一代多卜勒天氣雷達資料、衛星雲圖資料等對高原東北部地區大到暴雨的天氣、氣候特徵及大尺度環流背景進行分析,形成對高原暴雨的整體認識,並為以後的數值模擬提供大尺度環流背景及依據,分析中發現: 1 、高原東北部地區大到暴雨的分佈明顯受到地形影響,年降水量和大到暴雨次數自東向西呈階梯性遞減趨勢,分別在高原東北部的外流河谷地區和四川北部地區存在大值中心。Radar does not cover the vast airspace, so pilots must radio in at predetermined points along strict flight paths, allowing controllers to calculate separation between planes, which must be at least 100 miles
雷達覆蓋不了廣大的空域,因此駕駛員必須沿著嚴格限制的路徑飛行,在特定航點發出無線電,讓管制員可以計算飛機之間的距離(兩架飛機至少必須間隔160公里) 。Frequency diversity technique is effective in suppressing age if the frequency interval is big enough to remove off the correlation between the pulses transmitted by radar, wide - band mmw radar can satisfy the requirement but conventional microwave radar can t
頻率分集技術抑制目標角閃爍的有效性,取決于去除脈間相關性的性能,即要求雷達發射信號必須有較大的頻率間隔,寬帶毫米波雷達正好滿足了這一常規微波雷達不能滿足的要求。Because of radio wave propagating along the ducts with enhanced fields on the order of the free - space field, the problems of the co - channel interference are more complicate for communication systems with the results of intersystem interference and the formation of other system, and therefore affecting the determination of the coordination distances or the optimization of the distribution and separation of delay, and for surveillance system such as radar system the problems can be radar holes or the extensions of detect range
對于通信電路,它使系統間的相互干擾問題變得復雜,既可能幹擾其他系統又可能形成另外的系統,從而影響系統的有關參數如中繼電路的最佳組合(分佈、間隔)和協調距離,對于探測系統產生的則是雷達空洞、超視距探測等問題。這些問題對相關無線電系統特別是軍事應用系統可能是致命的,因而以波導傳播為代表的反常傳播特性研究受到極大重視。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。In the surveillance system of cns / atm, secondary surveillance radar ( ssr ) is used in busy air space, and automatic dependent surveillance ( ads ) is used in other air spaces. ssr and ads can also be integrated. and ads can improve the efficiency of air space in the areas of ocean and desert where there is less flight route and large separation between aircrafts
在新航行系統的監視系統中,主要發展雷達監視和自動相關監視,在繁忙空域採用二次雷達監視,其它空域採用自動相關監視,並且可以實現二者的數據耦合;通過自動相關監視,可以克服海洋、荒漠空域航線少,飛機間隔大的缺點,提高空域利用率。Increasing the fft ’ s points can decrease the frequency interval, but it will increase the complexity of computation at large extent
如採用增大fft運算的點數來減小頻率采樣的間隔,將大大增加數字信號處理的運算量,從而影響到雷達工作的實時性。The most important specification of the level measurement system is the accuracy. the range measurement accuracy of a fmcw radar is strongly affected by the stability and the linearity of the frequency modulation. thus the vco ' s nonlinearity correcting method is discussed
利用fft ( dft )頻譜估計頻率精度受fft頻率量化(即譜線之間的間隔)的限制,對應的fmcw雷達的距離估計精度則受掃頻帶寬的限定。A method of ensuring radar fault check - up period based on fuzzy reliability
一種基於模糊可靠度確定雷達故障檢測間隔期的方法分享友人