隨機衛星 的英文怎麼說
中文拼音 [suíjīwèixīng]
隨機衛星
英文
random satellite-
We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response
其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。In the future, information from the gliders will likely be combined with data from other technologies, such as satellites and radar, to create three - dimensional views of the ocean, schofield said
不僅如此，隨著技術的發展，未來水下滑翔機獲得的數據將與衛星相結合，共同描繪出關于神秘大洋的三維圖景，為更多癡迷於探索海洋的人們打開方便之門。Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications
本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。The " gallica cluster " appeared as a mixed lineage in the dendrogram. the relatedness of 29 specimens of armillaria ostoyae originating from china, 33 from europe, and 8 from north america was investigated with the aid of mating tests and dna fingerprinting
利用遺傳交配技術和隨機擴增微衛星技術，調查了29號中國奧氏蜜環菌、 33號歐洲奧氏蜜環菌和8號北美奧氏蜜環菌標本的遺傳和分子系統學關系。With argumentation system and differential system, gnss is capable of supporting en route flight and cat iii precision approach. this system can meet the need of all flight phases in terms of integrity, precision and continuity. with the application of area navigation and required navigation performance ( rnp ), this would make the parallel route, random route and direct flight route possible, and also improves the efficiency of air space and the flight safety
在導航系統中，全球衛星導航系統是其主要成分，通過增強系統和差分技術， gnss具有支持從航路飛行到類精密進近的能力，在完好性、精度、可用性、連續性上都可以滿足飛行各階段的要求；隨著區域導航和所需導航性能的實施，平行航路、隨機航路和起點和終點之間的大圓航線直飛得以實現，提高了空域利用率和飛行安全。The advantages of the new method of calculating the vtec including : ( 1 ) because the instrumental bias is considered, the vtec ' s change going with time is closer to their real change. ( 2 ) with the precision of calculated the vtec improved, the vtec can reflect the increase of the vtec resulted from the solar flare
新的求解vtec的方法具有以下優點：考慮了gps衛星和接收機的儀器偏差的影響，計算的電子總量隨時間的變化更接近電離層的實際情況；提高了求解電子總量的精度，計算出的vtec值更能反映耀斑引起的電子總量的增加情況。Second part - the main contribution and research results of this paper are focused on as follows : ( 1 ) how to use the measurements of a dual frequency gps receiver to determine the ionospheric delay correction model for single frequency gps of a local range ; ( 2 ) how to separate the instrumental biases with the ionospheric delays in gps observation ; ( 3 ) how to establish a large range grid ionosphere model and use the gps data of chinese crust movement observation network to investigate the change law of ionospheric tec of china area ; ( 4 ) how to improve the effectiveness of correcting ionospheric delays for waas ' s users under adverse conditions. ( 5 ) how to establish the basic theory and the corresponding framework of monitoring the stochastic ionospheric disturbance using gps ( 6 ) how to improve the modelling ability of ionospheric delay according to its diurnal, seasonal, annual variations based on gps ; ( 7 ) how to meet the demand of correcting the ionospheric delay of high - precision orbit determination for low - earth satellite using a single frequency gps receiver 1 extracting ( local ) ionospheric information from gps data with high - precision the factors are systematically described and analyzed which limit the precision of using gps data to extract ionospheric delays
二、具體研究工作的系統報告，主要集中在以下幾方面：研究如何利用單臺雙頻gps接收機的觀測信息確定電離層延遲改正模型，為小范圍的單頻用戶服務；研究如何實時分離gps觀測中的儀器偏差與電離層延遲；研究如何建立較大區域的電離層格網模型，進而初步設想利用中國地殼運動觀測網路深入研究我國領域的電離層的電子濃度變化規律；研究單頻用戶在不利條件下，如何更好地利用電離層延遲改正信息；研究利用gps監測隨機電離層擾動的基本理論和框架方案；研究如何綜合顧及電離層的周日、季節和年變化，進一步提高利用gps模擬電離層延遲的能力；研究如何實現星載單頻gps低軌衛星的精密測軌中的電離層延遲改正要求。Microsatellite dna is among the most efficient class of molecular markers due to their hyper - variable and co - dominant nature with relatively high abundance and random distribution in the genome, and have been applied to a variety of fields including population differentiation, kinship analysis, linkage analysis, and evolutional and ecological studies
摘要微衛星dna由於具有高度多態性、共顯性遺傳、基因組中含量豐富且隨機分佈等特點，目前已成為最有效的分子標記之一，並應用於種群分化研究、血緣分析、基因連鎖分析、進化以及生態學研究等許多領域。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。International tv programming is always available including cnn, hbo, and nhk channels. we also offer video - on - demand, and high speed internet free access via bbi. for some reasons you may wish to refresh after a long journey, or before going on
電視機可直接收視國際衛星直播節目，隨叫隨到地送餐服務，房間免費寬頻上網，互動式電影點播，還專為特殊需求的賓客，配備了租用小時房服務。Precision transmission device is one kind of the key fundamental components, which are extensively applied to many industry fields including robot industry, machine industry, instrument industry etc. with the development of information technology and space navigation technology, especially the micro - miniaturization, speediness and automation of satellite communication, scouting the flying project, remote sensing and measuring and astronomic observation antenna system, more hard requirements are demanded on precision transmission
精密傳動是一種重要的基礎性零部件，在機器人、機床、儀器儀表等工業領域有著廣泛的應用。隨著信息和宇航科學技術的發展，特別是衛星通信、飛行目標跟蹤與攔截、遙感與遙測、天文觀察等天線系統的微小型化、快速化及自動化，對精密傳動提出了更高的要求。And the satellite - carried parallel computer ’ s low - power design technology is developing with the need of the satellite - carried parallel computer ’ s cooling and reliability
星載計算機的低功耗技術是伴隨著星上衛星系統的可靠性要求和散熱要求發展起來的。The main difficulty in development of microsatellite ( or simple sequence repeats, ssr ) is to screen the specific sequences flanking ssr, a method to screen microsatellite based on sampl was tested in the chinese shrimp. randomly selective bands ( s1k s13 > s14 > s22 > s24 ) were cloned and sequenced, 61bp, i57bp 147bp, 152bp, 298bp sequences were obtained respectively. no ssr were found inslk s s s22 apart from the sampl primers sequence, on the other hand, a ssr sequence of ( ga ) 39 were found in s24, which comprises aflp primers only
微衛星的發展主要受限於微衛星兩端旁側特異引物的篩選，本研究在中國對蝦中初步嘗試了基於sampl技術的微衛星標記開發，隨機選取了5個s枷pl條帶（ 511 、 513 、 514 、 522 、 524 ）進行了克隆測序，大小分別為161bp 、 157bp 、 147bp 、 152bp 、 298bp ，但在511 、 513 、 514 、 522四個片段中未找到引物序列外的微衛星序列重復; 524兩端引物均為傳統的aflp引物，在此測序片段中有一（ ga ） 39重復序列。Application of random amplified hybridization microsatellite markers in polymorphic analysis of the greater long - tailed hamster populations
隨機擴增雜交微衛星方法在大倉鼠種群遺傳多態性研究中的應用Dvb - c is cable standard and dvb - s is for satellite transmission
隨著數字衛星電視節目的日益增加，數字衛星接收機的市場需求量迅速增長。With the development of internet technology, the exchange method of the electronics stock is facing a new huge change. originally, security company resorted to exclusive satellite net to connect the investors, who filled in the orders and quotations in the sales department or used the funds card directly on trade machine. now it turns to using the telephone and internet to deal with the exchange
隨著網際網路技術的迅速發展，電子證券的交易方式正面臨著新一輪的巨變，交易方式將由最開始的證券交易所通過專用衛星網與券商連接，投資者在券商的營業部通過填寫買單、賣單或直接通過資金卡在交易機上買賣進行交易，轉向電話委託和利用網際網路在網上進行交易。Blowing into a tube on the phone measures the user ' s level of intoxication, which is then transmitted to headquarters along with a mugshot of the user and details of the phone ' s location, determined by satellite
向手機上的小管吹氣便能檢測出用戶體內的酒精含量，隨后，相關數據被傳輸到存有用戶照片和手機衛星定位詳細資料的總部。As dvd - players, digital video - recorders and cable and satellite decoders proliferate, controllers have become more complicated and more numerous
隨著dvd機、數字錄像機、有線及衛星電視解碼器的應用越來越普遍，遙控器也更多、更復雜了。分享友人