航行作差計 的英文怎麼說
中文拼音 [hánghángzuòchājì]
航行作差計
英文
deviometer- 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...
- 差 : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 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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This paper presents a wider research field - risk analysis. through the study of the effects that threat factors and error factors impact on the flight risk and adjusting performance rules, the horizontal safe corridor, threat avoidance, vertical altitude real - time modification and the fastest trajectory programming are progressed
總結前人在該方面的研究成果,提出一個更加廣義的研究角度? ?風險分析。通過對威脅因素、誤差因素對飛行風險的作用,調整性能準則而進行了水平安全走廊設計、威脅迴避、垂直離地高度實時修正以及最快速航跡規劃。A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path
本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討,在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型,推導出了一個通用的移動機器人堆積方程,在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解;使用muir和newman的運動學建模方法,推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法;在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析:推導了一種理論精度較高的航位推算演算法,並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬;最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路,較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題;本論文研究成果已在本實驗室所開發的樣機上得到實現,經過應用與考核證明其中的分析與設計是切實可行的。The thesis summarizes the basic theories of price discrimination, expatiated on the multi - class differential pricing method and dynamic differential pricing theory ; concludes the factors that have impacts on tickets - price, analyses and classfies the factors ; brings forward a canonical method of market segmentation, introduces the process of market segmentation based on the model of gray relative level, discusses the idiographic measure of ticket - price control ; improves the academic achievements of former scholars, puts forward a model of multi - class dynamic differential pricing for the air passenger transport, which is based on the maximum revenue for the airline industry, and gives a approximate arithmetic of the model, then showes the application of the model and its feasibility on increasing airline industry ’ s revenue by 25 models
在對民航定價的國內外研究現狀進行綜述的基礎上,從經濟學角度介紹差別定價的基本理論,闡述民航客運的多等級差別定價理論和動態差別定價理論;對民航票價的影響因素進行分類說明;作為多等級定價的基礎,提出市場細分的標準和方法,用灰色關聯度模型解決航空旅客市場細分問題,並提出票價控制的具體措施;引入一種旅客到達頻率預測的統計方法,以航空公司收益最大化為目標,建立基於多等級定價基礎上的動態差別定價模型,即多等級動態差別定價模型,給出模型的遞歸演算法,通過對動態差別定價模型的運行結果進行分析,建立模型的一種近似模型,並且用25個簡單算例說明模型的用法以及在提高航空公司收益方面的可行性。The main tasks of this thesis are : discussing the dead - reckoning theory of doppler velocity log and compass, decreasing location error methods, emulating several ship tracks ; discussing several aspects influencing the velocity precision of doppler velocity log ; in a pool trial, processing the trial data and achieving some conclusions
本論文主要研究工作包括:對羅經和多普勒計程儀推算輔助導航系統的工作原理,及減小定位誤差的兩種方法和幾種軌跡進行了研究;對影響多普勒計程儀測速誤差的各個方面進行了綜述;最後對多普勒計程儀水池試驗的數據進行了處理,得出所要結論。The chapter of implementation the project is to characterize how to harmonize the organization and the resource, how to get to the final point of the project in the direction of the main plan with the quality plan, the communication plan, the risk plan, etc. and how to minimize the gap between the plan and the outcome is also described in this chapter
項目執行一章中,介紹如何協調組織資源,如何在質量計劃、溝通計劃、風險計劃等等的保駕護航之下,在項目主要計劃的指引下,順利完成工作成果,並使工作成果和項目計劃的偏差保持最少。The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system
如航跡產生器的設計,該航跡產生器是研究組合導航問題的前提,從國外一些研究組合導航系統的文獻中可以看出,設計這樣一個航跡產生器是非常必要的,所以本文自行設計了這樣一個系統;還討論了捷聯慣性導航系統中捷聯解算的方法,並進行了模擬研究,由於在本文設計的閉環反饋式組合導航系統中,對捷聯慣導系統的平臺誤差進行閉環控制,需要將濾波器輸出的校正量反饋到捷聯解算內部,所以必須對捷聯解算進行深入的研究和分析,更何況捷聯解算問題本身也是導航界的一個熱門研究課題;另外,本文還介紹了gps軌道及其星座模擬的設計思想和方案,與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始,逐步進行gps軌道及其星座模擬,這樣的設計方法對從事衛星導航的研究工作是有價值的;還對組合導航中誤差建模方法進行了研究,綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法,並運用實際研究工作中的測量數據對該方法進行了驗證。In this paper, a theoretical investigation of the drag reduction for underwater submarine by riblet biomimetic non - smooth surface and microbubble carried out, the prime mechanism of two drag reduction technology is open out, and provide theoretical foundation for engineering, which proved efficiency of thruster
粘性摩擦阻力在低速前進時對航行器的阻力起主導作用,而在高速航行時壓差阻力是主要的,因此在設計當中綜合考慮了兩方面因素,使表面結構具有雙重減阻特性。In designing ship course ' s fuzzy control system, a kind of self - tuning scaling factors based on system ' s course error ( e ) and change in error ( ec ) is present t o realize ship course ' s adaptive fuzzy control
本文在進行船舶操縱運動模糊控制系統設計中,為使系統工作平穩,研究了一種根據系統工作過程中的偏差和偏差變化率自動校正比例因子的演算法,以實現船舶航向自適應控制。On the basis of deep research of its working principal, basic algorithm and error spread character, the gyro constant drift, acceleration zero error and constant initiation error of static pedestal strapdown inertial navigation system are quantitatively analyzed. furthermore with the medium precision inertial navigation device as the simulation object, we made some mathematical simulation
詳細研究了捷聯式慣性導航系統的工作原理、基本演算法和誤差傳播特性;對靜基座條件下捷聯慣導系統中陀螺常值漂移、加速度計常值零位誤差和常值初始條件誤差引起的系統誤差進行了定量分析;以中等精度的慣性器件構成捷聯慣導系統作為模擬對象,進行了數字模擬。The observed quantity of the sins / od is the velocity ' s differences between sins and od, and the sins / od also adopts a closed kalman filter to estimate and correct the errors
用捷聯慣導系統解算出的速度量和里程計所測量的速度量之差作為組合導航系統卡爾曼濾波器的觀測量,利用閉環卡爾曼濾波技術進行誤差估計與校正,並給出了系統模擬結果。In this algorithm, the difference between each tracking of different sensor are calculated, and as inputs are sent into the support vector machines to for judging the association between track and track. 3
把各個傳感器目標航跡狀態估計偏差作為支持向量機輸入,對各個傳感器的目標的狀態估計信息進行分類識別,從而實現多傳感器信息融合多目標跟蹤中的航跡關聯。Secondly, introduces the configuration and characteristics of new real - time operating systcm - vxworks and analyzes tomado which was the development environment of vxworks. by analyzing hardware configuraion and substance of inertial navigation, i set up uniform model of the system which involves of five work mannrs and inertial aligrunent of inertial navigation. then the uniform model is validated by computer simulation
接著,通過對慣性導航系統的硬體結構和慣導系統基本工作原理進行分析的基礎上,建立了包括五種工作狀態、初始對準等在內的慣性導航系統的統一數學模型,在此基礎上,對慣性導航系統的統一數學模型進行了計算機模擬驗證,分析了慣導系統誤差特性,模擬並驗證了陀螺漂移和加速度計零位誤差對慣導系統的誤差影響。Under the the image motion and the sampling discrete conditions, the other more important result is : under the condition of engineering practice, the orientation between the target strip and the pixel row is parallel or not, the difference amount of mtf is smaller then 1 %, therefore in the engineering, the mtf of the orientation parallel can instead of the mtf of the corresponding case
Ccd探測器的動態成像過程的另一個重要結論是:在工程實際條件下,目標條帶與ccd探測器的像元行方向平行與否的兩種情況ccd探測器影像的基於模擬實驗及計算機模擬的ccd航天相機影像分辨力的研究mtf相差小於1 % ,因此工程應用中可以考慮採用方向平行時的mtf作為相應情況下的mtf值。分享友人