航行定位 的英文怎麼說
中文拼音 [hánghángdìngwèi]
航行定位
英文
running fix- 航 : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
- 行 : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 航行 : 1 (水中行駛) navigate by water; seaway; sail 2 (空中行駛) navigate by air; fly 3 voyage; 航行...
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Space environment threaten orbited spacecraft " s safe functioning and astronaut " s health, influence greatly communication depended on based - space way, airmanship orientation, military detection, aim identification, weather observation and source exploration and so on by all sorts of function ( magnetic storm, solar proton event and so on )
空間環境通過各種效應(如磁暴、太陽質子事件等)對在軌航天器的安全運行及航天員的健康構成了嚴重的威脅,對依賴于天基手段的通信、導航定位、軍事偵察、目標識別、氣象觀測、資源勘探等等均有重要影響。Though not an implicit believer in the lurid story narrated or the eggsniping transaction for that matter despite william tell and the lazarillo - don cesar de bazan incident depicted in maritana on which occasion the former s ball passed through the latter s hat, having detected a discrepancy between his name assuming he was the person he represented himself to be and not sailing under false colours after having boxed the compass on the strict q. t
在那次事件中,前者的子彈穿透了後者的帽子。他看穿了水手的名字假定他果真就是所自稱的那個人,而不是在某地悄悄地使船調換方向,掛上別國國旗航行的話與明信片上的收信人姓名有出入,再加上那個編造的發信地址,使他頗為懷疑我們這位朋友誠實71與否。Bat : any of various nocturnal flying mammals of the order chiroptera, having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation, by which they navigate and hunt prey
蝙蝠:一種翼手目的夜間飛行的哺乳動物,它們具有能從前肢伸到後肢或尾巴的膜狀翅膀,其生理結構能夠靠聲波定位,並以此導航和捕食。During the evaluation method for the precision of missile aiming on the sea, setting up test structure system, confirming demand coordinate, putting up installation and calibration to test frame of missile silo, in the course of navigating, it was analyzed and calculated the direction error that brought by the incorrectness of the position of longitude and latitude
在海上瞄準精度鑒定方法中,建立了試驗構建體系,確定了必要的坐標系,對彈筒試驗支架進行了裝調、校正和實際標定。對艇在航行過程中,由於艇的經、緯度不準確而帶來的定位誤差的影響進行了分析與討論。Test should be proceed under good meteorologic conditions and sea condition, keep the cruise 、 ship speed and main engine revolution of the vessel stable before trial, rudder angle should keep at center position
試驗應在良好的氣象條件和海況下進行,試驗前,應保持航行、航速以及主機轉速的穩定,試驗期間,舵角應保持在正中位置。Considering the precision and cost of sea - route in our country, gps oem board was selected positioning for system in stand - alone model ( not dgps ). there is abundant time to processing and optimizing data for gps receiver because the reactive speed of pharos is on hour level contrast to strict real time
根據航道定位精度要求與成本承受能力,系統選取低成本的gpsoem板接收機進行單機定位,由於航標燈監控有一定實時性但又非嚴格意義上的實時性,其反應速度可到小時級,這為gps接收機定位提供了寬裕的時間作為數據處理與優化。The position system has used to give first place to with gps navigates, dead reckoning system and map - matching system are the subdominant ones. the location is calculated by dead reckoning algorithm when the gps system invalidated which can affact well in short time
定位系統採用了與gps為主、航位推算系統為輔的組合導航系統,利用航位推算對gps定位出現失效時,進行輔助定位,在短時間內能獲得良好的效果。It makes use of resource of the chip, realizes the development of every module, achieves distilling of telegraphese, builds up new frame, calculates the position and provides external interface. in the section of calculating the position, the author combines the two measures of carrier phase position and code position. finally, in the platform of matlab, the author completes the function simulation of main modules
概述了接收機的設計原理;詳細描述了基於ti公司的tms320c6713dsp晶元的系統程序設計中各模塊的實現,利用該晶元的資源,實現各模塊的調度,完成對導航電文的提取,重新組幀,定位解算以及對外介面;在解算部分,把載波相位定位與碼測距定位相結合,利用載波相位對偽距的平滑來提高定位精度;在matlab平臺下進行了各模塊的功能模擬測試,以模擬結果的圖表來分析說明了載波相位平滑偽距的兩種演算法能使定位精度有一定的提高。Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained
首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差,建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道,並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較,先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較,然後針對外場試驗,對非線性濾波獲得的定位結果與商業軟體進行了分析比較,並得出結論。According to the united nations convention on the law of the sea, the article follows expounding the legal position of internal waters, the territorial sea, the adjacent zone, the exclusive economic zone, international straits, archipelagic waters and the high seas, and analyzing the rights and obligations of coastal countries in above areas and the criminal jurisdiction and civil jurisdiction of the coastal country and the flag state. then, the article clears up the rights of shipping of vessels in different areas, which is the main point of the paper. circling this main point, the article further makes some advice to better our regulations on the law of the sea
因此,本文從船舶的定義及船舶航行權的性質和意義入手,以《聯合國海洋法公約》為依據,闡述了公約所劃定的內水、領海、毗連區、專屬經濟區、國際海峽、群島水域及公海的法律地位、分析沿海國在這些海域中的權利和義務,以及沿海國與船旗國對船舶的刑事、民事管轄權,進而明確了船舶在不同海域的航行權,並圍繞這一中心問題,提出了完善我國海洋法律制度的相關建議。In order to attain high accuracy of gps satellite navigation, positioning and low cost in precision agriculture, it is studied a method of gps pseudo - range observation and carrier phase measurement to combine the actual conditions of agriculture. it is presented a method of high accuracy positioning and measure based on gps oem board in this paper, and proved the feasibility of key technology with emulations and field tests
為了適應精準農業高精度、低成本的gps定位導航應用要求,本文通過對gps偽距和載波相位定位方法的研究,結合精準農業的實際情況,提出了基於gpsoem板的高精度定位與測量方法,並用模擬和田間試驗驗證了各關鍵技術的可行性。However, the longer length of c / a code, the more hardware resource and power it cost. this dissertation commits research on algorithm of c / a code acquisition in satellite navigation position system, and compares the acquisition means of digital differential matched filter ( ddmf ) with traditional means, and also achieves ddmf with the vhdl language and fpga platform
擴頻碼的周期的加長會給衛星導航定位系統帶來許多相應的好處,但問題也就隨著之而來了,擴頻碼的周期越長,同步捕獲所需得的時間就越長,而且若用傳統的并行捕獲方法,將極大的耗費硬體資源,而且系統功耗會隨之增大。By comparing the two types of airline networks based on the same network model parameters, it is found that the flight frequency, nonstop traffic and fare given by hub - and - spoke airline network is larger than that by fully - connected airline network, while the single flight occupancy is incomparable
基於相同的網路模型參數,對全連通航線網路和樞紐航線網路中的航班頻率、客流量、直達票價、單航班座位數之間的關系進行了研究,結果發現樞紐航線網路中的航班頻率、直達客流量和直達票價分別大於全連通航線網路中的航班頻率、直達客流量和直達票價,但是不能確定兩種航線網路中單航班座位數之間的大小關系。In addition, airway winds, which are essentially grid - point wind and temperature data over the south china sea for 15 flight levels between 10, 000 and 43, 000 ft, are disseminated to the radar data processing and display system ( rdpds ) of the cad for calculation of the expected arrival time of aircraft at check points
除此之外,氣象數據處理系統將飛機航道風的數據傳送至民航處的雷達數據處理及顯示系統,這些數據是風和溫度的網格點值,其水平范圍覆蓋南海,垂直范圍是由10 , 000至43 , 000尺之間的15個飛行高度;以上資料可用來計算航機抵達各定位點的時間。In addition, airway winds, which are essentially grid - point wind and temperature data over the south china sea for 15 flight levels between 10, 000 and 43, 000 ft, are disseminated to the radar data processing and display system rdpds of the cad for calculation of the expected arrival time of aircraft at check points
除此之外,氣象數據處理系統將飛機航道風的數據傳送至民航處的雷達數據處理及顯示系統,這些數據是風和溫度的網格點值,其水平范圍覆蓋南海,垂直范圍是由10 , 000至43 , 000尺之間的15個飛行高度以上資料可用來計算航機抵達各定位點的時間。The main content of the fourt h chapter is math model, includes ship movement equation model, movement responding model, ship transfer excursion model, wind and current floating excursion calculating model, the occupying fairway width calculating model for determining voyage and so on
第四章為數學模型研究,主要的數學模型有:船舶運動方程模型、武漢理工大學碩士學位論文運動響應模型、船舶偏移量模型、風流致船舶漂移量的計算模型、定距離船舶航行所佔航寬模型。Visual simulation is an important part of space simulation, which can present the motion of the space targets and working condition of ground facilities intuitionisticly, and can make it easier for us to find out the problems in the space experimentation and analyze them
航天試驗及模擬可視化是航天試驗及模擬的一個重要組成部分,能夠形象、直觀地展現空間目標運動及地面設備工作情況,便於航天試驗或模擬時對問題進行定位及分析研究。However, although gps can provide worldwide real - time positioning service, the fatal shortcoming is that the positioning precision can be reduced sharply owing to the weak satellite signal which is blocked by buildings and trees etc. fortunately, gsm / gprs network can work and provide positioning service can transmit the position messages to remote users or servers
然而, gps定位雖然能實現全球范圍內的實時定位,但是對于gps來說,其很大的一個缺點是跟蹤衛星的信號常常由於建築物及樹木等的遮擋而使gps的定位精度大大降低,甚至無法進行正常的導航和定位。而基於gsm / gprs網路的位置服務恰恰能彌補gps定位的這一缺點,並且gsm / gprs網路能將位置信息傳送到遠端。Secondly, it provides some arithmetic and positioning methods used in the network - based navigation system and simulation outcomes. then, the paper analyses some errors of network - based navigation system. it studies error propagation of relay positioning and gives simulation results
然後給出了網路化導航的定位方法和演算法,並結合具體演算法進行了定位模擬計算;接著對網路化導航誤差進行了分析,研究了接力定位的誤差傳遞情況並進行了模擬和結果分析。We introduced particularly a series of methods for improving reliability, disturbance resistance, scanning scope and location precision, such as : using modulate laser, designing bandpass filter, zooming out signals and using a special circuit to get rid of disturbances. after that, the effective signals enter into the spring - circuit and touch off it, then the data register lock the codes, so the codes are read into single chip and are sent to the computer for the location. finally, many experiments about disturbance resistance, scanning scope and location precision have been done
為了提高導航定位系統的可靠性、抗干擾性、掃描范圍及定位精度,使其具有良好的穩定性,而採取了一系列技術措施,包括:採用調制激光信號;設計帶通濾波器和信號的整形處理電路;採用門限技術剔除干擾;並採用單片機系統對採集到的各類信號進行綜合處理與管理;建立了基於合作路標的位置計算方法和數學模型,實時通過串列通訊送到上位機,以便上位機對數據進行處理,從而進行定位計算。分享友人