目視距離 的英文怎麼說
中文拼音 [mùshìjùlí]
目視距離
英文
visual range- 目 : Ⅰ名詞1 (眼睛) eye 2 (大項中再分的小項) item 3 [生物學] (把同一綱的生物按彼此相似的特徵分為幾...
- 視 : Ⅰ動詞1. (看) look at 2. (看待) regard; look upon 3. (考察) inspect; watch Ⅱ名詞(姓氏) a surname
- 距 : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
- 目視 : visual目視測光 visual photometry; 目視等高儀 impersonal astrolabe; 目視定位 [航空] visual fix; 目...
- 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
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Two stars have the same absolute magnitude. one is thousand times farther away than the other. what is the difference in apparent magnitudes ? which magnitude larger
兩顆星具有相同的絕對星等,其中的一顆比另一顆距離遠1000倍,它們的目視星等有何不同?哪一個的星等數值大?At present, the check standard of rotating laser has not come into being, and the manufacturers and users still use the traditional i angle method of gradienter which have long - distance, low precision and in the stage of eyeballing
目前激光掃平儀檢定的專業標準尚未形成,生產廠家對激光掃平儀的檢測方法還在沿用傳統水準儀?角檢測法,檢測的距離大,檢測的精度較低,處於人工目視階段。Although it is uncertain as to how far messages can travel and how long the messages can be, researches have indicated that while visual messages can be transmitted by telepathy through the use of the virtual screen, auditory and gustatory information cannot
目前還不能確定的是信息傳送的距離和信息量的極限。實驗結果還說明思維傳感通過屏幕效應,所以視覺信息可以傳送,而聽覺和味覺等信息則不能傳送。The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble
系統採用電臺的電視伴音調頻信號,其中電臺信號與伴音信號功率之比基本為10 : 1 ,並且目標散射信號較弱,一般情況下淹沒在雜波和機器熱噪聲之下,採用常規的脈沖檢測方法很難對遠距離的目標進行檢測,而以電臺直達信號作為參考與目標回波信號進行相關檢測;系統中信號的相關處理會產生旁瓣,而強目標的旁瓣會影響附近的弱目標檢測。C ) analysis of counterplan. due to the covering of agriculture program relates closely to physical distance between agriculture program and peasants, while the affinity directs to their mental distance, the problem that how to improve audience rating of agriculture program must take the two aspects into account
(三)對策分析由於農科節目的覆蓋率直接指向農科節目與農民之間的物理距離,親和力指向二者之間的心理距離,所以探討如何提高農科節目的收視率有必要從這兩個方面來加以考慮。Aom tells very instrument pilot under what visibility ( in terms of runway visual range ( rvr ) ) and or cloud ceiling can the aircraft take off, and under what visibility ( again in terms of rvr ) and visual reference can the aircraft continue the approach to land from the decision altitude ( for precision approaches, e. g. instrument landing system ( ils ) ) or from the minimum descent altitude ( for non - precision approaches ). there are a number of factors affecting the values of aom
機場最低飛行條件讓每名按儀表駕駛的飛行員知道,航空器在什麼能見度以跑道能見距離來說及或雲幕高度下才可起飛;以及航空器在什麼能見度以跑道能見距離來說及目視基準下,才可從決斷高度用於如使用儀表著陸系統的精確進場或最低下降高度用於非精確進場繼續進場著陸。A civil aircraft performing visual flight shall observe visual flight rules and keep a safe separation from other aircraft and ground obstacles
進行目視飛行的民用航空器,應當遵守目視飛行規則,並與其他航空器、地面障礙物體保持安全距離。1 ) the ground clutter is very strong when radar works in its down - look mode. 2 ) the clutter has the character of space - time coupling and the clutter spectrum spreads due to the movement of platform. 3 ) the lower repeat frequency results in doppler blur and the clutter spectrum spreads in the whole doppler domain
地面動目標檢測的最大難點: 1 )雷達下視時地雜波特別強; 2 )由於平臺運動,地雜波存在著空時耦合,雜波譜展寬; 3 )為避免距離模糊,採用較低的重復頻率,但會存在多普勒模糊,地雜波譜擴散到整個多普勒域。The background of this thesis is scene surveillance radar, which is mainly applied in target imaging, recognizing and tracking at airports
本課題的背景是場面監視雷達,其應用背景是針對機場,對機場內目標進行距離分辨力成像、識別和軌跡跟蹤。A modified range - doppler algorithm for spaceborne sar with large squint angle is presented and the quality of images of simulated point target echoes gained by two algorithms are list in the paper
提出了一種適合大斜視角星載sar系統的改進距離多普勒演算法,並給出了處理模擬點目標數據得到圖像質量的比較。The paper has introduced a new means on the automatic focus that take advantage of the video peak to change the position of the focusing lens to achieve a clear picture
摘要介紹了一種新型的自動調焦的方法,它利用電視跟蹤系統視頻信號的峰值變化控制調焦鏡組,來調整由於目標距離、溫度等變化引起的成像焦面變化,得到清晰圖像,完成電視自動調焦。In view of this, this article analyzes the successful experience and problems of the agricultural television and do some tries and probing thinking, so as to offer some reference to the development of thinking and practice of creation of rural science and educational tv programs through analyzing the first - hand investigation report of the rural science and educational tv p rogram, with a clue of physical and mental distance between science and peasants
有鑒於此,本文擬通過對農村科教電視節目(以下亦簡稱「農科節目」 )的收視調查分析,以科學與農民之間的物理距離和心理距離為線索,針對目前農業電視已經取得的成功經驗和存在的一些問題進行客觀剖析,並作一些嘗試性、探討性的思考,以期對農村科教電視欄目的發展思路和節目的創作實踐提供一些參考。Firstly, the paper, combining the characteristic of synchronous pulse bursts and inhibition with the modified pcnn model, presents a way of finding the foveation points in the images adaptively and effectively, and simulates the human vision system. secondly, pcnn is extended to pcnns, based on the properties of information couple and transmission, an algorithm that is used to fuse images of the same target got by several sensors to an image is presented to simulate the human vision system. thirdly, combining the properties of synchronous pulse bursts, capture, and transmission and competition of waves, the paper presents two ways of classification, one is an algorithm based on the properties of neuron to capture and inhibit to classify the data taking on any complex unlinear distribution robustly, the other is based on the restricted distance and modified of the former to remove the influence of inferior samples in classification ; fin ally, based on the accumulative difference pictures, and the forming and transmission of pcnn wave, selecting and controlling the direction of autowave by connecting the neighbouring neurons selectively, the paper presents a way to simulate the tracks of moving object and detect the moving direction
首先結合pcnn的同步脈沖發放和側抑制特性,提出了基於改進型pcnn的圖像凹點檢測演算法,該演算法是一種自適應而有效的圖像凹點檢測方法,並且較好地模擬了人類視覺系統;然後,結合信息傳遞和信息耦合特性,將pcnn擴展成pcnns ( pcnn網路群) ,提出了一種基於pcnns的圖像融合演算法,能夠將多個傳感器獲取的同一目標的圖像信息融合到一幅圖像中,有效模擬了人類視覺系統;另外,結合pcnn的同步脈沖發放特性、捕獲特性和波的傳播競爭特性,開拓地將pcnn用於模式分類中,提出了基於耦合神經元點火捕獲抑制特性的分類方法和改進的約束距離下的pcnn分類方法,前者可實現對樣本空間中任意復雜分佈訓練樣本的穩健非線性分類,而後者能夠消除訓練樣本中刺點對分類的影響;最後,結合累積差分圖像思想、 pcnn波的形成與傳播特性,通過各神經元之間連接取向來選擇與控制自動波的流向,將pcnn用於運動視覺分析中的運動軌跡模擬及運動方向檢測。Based on analyzing the mechanism of direction finding triangulation location and location accuracy for two - ship passive locating, the acquisition probability model of anti ship missile terminal guidance radar is presented for two - ship passive locating : and the effects of the key factors to the probability are analyzed, and then the primary factors are pointed not by analyzing the results in different conditions
摘要首先簡要介紹了無源定位技術,然後著重分析了雙艦無源測向交叉定位以及其誤差產生的機理,在此基礎上,給出了雙艦無源定位情況下實施超視距攻擊時,反艦導彈末制導雷達開機時刻對目標的捕捉概率模型,並通過模擬分析雙艦距離。Meanwhile, in 3d - scene, some functions of spatial analysis and interactive operations have been realized. and, a testing application system of 3dcm is developed, which includes tin model construction, the creation of contour, spatial coordinate query, section - cutting, measuring distance and area, 3d visualization and operation about topography and building etc. the purpose of developing testing system is to demonstrate the correctness of 3dcm based on the visualization. finally, the result of the testing and 3dgis research direction is put forward to investigate generally
另外,在三維模型的可視化場景中,實現了一些3dgis的交互操作和空間分析功能,結合論文的目標,開發了一個實驗系統,對三維城市的建模方法進行了論證,實現了dem模型的快速構建及等高線的追蹤和地圖分幅,實現了三維城市模型的可視化,在可視化的基礎上實現了部分空間交互操作和空間分析,如:空間坐標查詢、斷面切割、距離和面積量算、建築物屬性查詢、三維動態漫遊等。In order to simulate the return, a radar coherent video echo model is used to simulate target echo, clutter and noise separately. then the three parts which are in the same range cell are added together to form a matrix to represent return in one radar coherent processing interval ( cpi ). this matrix is called a frame of range doppler data
為了較為全面地對雷達回波進行模擬,採用相干視頻回波模型分別模擬雷達目標回波、雜波和噪聲,通過在距離單元內疊加的方法,將一個雷達相干處理周期內的回波數據用一幀距離多普勒平面數據表示。With the diminishing marginal utility, the point of tangency may run to the area far to the central city. through the statistics and analysis, we find out that there are several characteristics in the central city tourism market : ( 1 ) the city tourists tour at weekends and gold weeks, and they want to buy such tourism products as " safe, convenience, short range and cheap ". ( 2 ) they tour by car or by themselves not go with tour team, ( 3 ) and stay out for zero to two nights
本文重點對中心城市居民出遊市場進行了統計分析,通過分析發現中心城市出遊市場總體表現出以下特點: ( 1 )城市居民外出旅遊時間除黃金周以外,主要集中在周末,其時間約束型的旅遊產品需求以「安、近、短、廉」為特徵的旅遊產品為主; ( 2 )出遊方式以自駕車和自主安排為主,團隊遊客的比例在逐步下降; ( 3 )出遊逗留時間以在外逗留0 ? 2夜為主; ( 4 )城市居民出遊人群中女性比例高於男性; ( 5 )出遊目的以近距離觀光、休閑為主,但度假市場正在蓬勃發展,現在中心城市周邊新興的「農家樂」就是度假旅遊的雛形和低級形式; ( 6 )中心城市銀發市場和教師、學生市場是兩個原來被忽視卻孕育著巨大潛力的細分市場。Measurement method of laser proximity fuze target reflective characteristic
引信點目標視頻回波模擬器距離模擬電路設計Cleared to land rvr ( r / w visual range ) 200m
可以降落,跑道目視距離200米。R / w visual range 150m
跑道目視距離150米。分享友人