satellite platform 中文意思是什麼
satellite platform
解釋
輔平臺-
Because it ’ s hard to get radiation - harden hardware overseas, so the software fault tolerance techniques are significant for our national space enterprise. the computer platform of 863 plan project ” micro intelligent free - flying space robotic system ” consists of cots component. the orbit and the radiation environment of the robot are similar to ones of the argos satellite, and the system is required to have high reliability. therefore it ’ s necessary to applied the software fault tolerance techniques into the system to improve the anti - radiation capability after the techniques been verified valid
因為我國很難從國外獲得輻射加固的硬體，所以，這項軟體容錯技術對我國航天事業的發展具有較大意義。 863計劃項目「小型智能飛行機器人系統」所用的計算機平臺採用商用器件，其衛星的運行軌道與argos衛星軌道近似，面臨的輻射環境與argos衛星相似，要求具有高可靠性。因此，小型智能飛行機器人系統有必要在驗證sihft技術有效的基礎上，應用軟體容錯技術，提高其空間抗輻射能力。 -
At present, the remote education is developed vigorously in overseas especially in the usa, demonstrated by the new report of idc, it ' s accepted by the american colleges rapidly, the american institution nearly 90 percent will provide " on _ line learning " chances, the contemporaneity distance education network platform is formed roughly, which based on the cernet and satellite video system builded in 1994
目前，遠程教育在國外特別是在美國得到了蓬勃發展。據美國國際數據公司（ idc ）的一份最新調查報告，遠程教育迅速為美國大專院校所接受，到2005年，近90的美國高等教育機構將提供「在線學習」的機會； 1994年開始建設的以中國教育科研網（ cernet ）和衛星視頻系統為基礎的現代遠程教育網路平臺已初步形成。 -
Multiple channel satellite tv, vod system, electronic ic locker system, separate desk, mini - bar, electronic safe, internet line, hair drier, dressing table, mini platform scale, bathrobe, separate shower room, shuttle bus, baby sitting, airline desk, business center, banquet facilities, laundry, beauty salon, ems dhl service, flower shop, multi - language staff, tour guide service, night club, idd ddd, restaurants, bowling, money exchange
滿堂春中餐廳以海派菜系為主，廳內設有貴賓廳及六間單獨包廂彩虹廳的西式廚藝，色香味美花園食街提供河鮮海鮮煲仔家常菜及精美點心在櫻日本料理除了可品?到日本刺身壽司之外，還可以品?到多款即席烹制的美食，其內設有大小三個榻榻米包廂。 -
The motion carriers such as the automobile, trains, war vessels, the plane and so on, are in flux by their position and azimuth, if want kepting satellitic message and taking over satellitic signal, must adopt the platform system of tenaclous tracking satellite antenna
汽車、火車、艦船、飛機等運動載體的位置和姿態不斷的在變化，要保持與衛星的通訊聯系和接收衛星視頻等信號，就必須採用衛星天線穩定跟蹤平臺系統。 -
4. on the base of deep discussing about spaceborne sar operation, we present an approach to acquire the target location plane by satellite position and platform attitude, then to locate the target consistent with the earth surface curvature
論文在深入研究星載雷達實際工作狀況的基礎上，提出了一種由衛星位置和平臺姿態獲得衛星與目標所在的定位平面，再根據目標所在地面的彎曲狀況以及衛星到目標的距離確定目標位置的方法。 -
The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。 -
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。 -
Firstly, under the assumption that the output driving torque generated by the stepper motor of the mirror is constant, such influence analysis is conducted. secondly, a mathematic model of the stepper motor is given. under the assumtion that the input impulse frequence is constant, the rotational motion of the stepper motor of the mirror with the mutual exertions of damping torque, friction torque and disturbance torque generated by satellite platform ' s attitude motion is simulated and analyzed
對衛星平臺姿態振動對紅外相機掃描機構轉動的影響進行了系統深入的模擬分析:首先在步進電機驅動力矩一定條件下，模擬分析了星體姿態運動干擾力矩對紅外相機掃描鏡轉動的影響;接著建立了步進電機的數學模型，在步進電機輸入脈沖頻率一定條件下，模擬分析了步進電機在阻尼力矩、干摩擦力矩、平臺干擾力矩等負載轉矩的共同作用下的轉動情況。 -
Early warning system of missiles is an real - time infrared reconnaissance camera based on satellite platform, it can simutaneously reconnoiter, discriminate and track the enemy missile, then obtain the information about the missile ’ s flight parameter
本文研究的導彈預警系統是基於衛星平臺的紅外實時傳輸偵察相機設備，它可以實時偵察、辨別、跟蹤敵方飛行導彈，在短時間內獲取導彈飛行資料。 -
Optimization of system and mission based on genetic algorithm ( ga ) about geo satellite using mpt has been probed after analysis of orbit dynamics, and building of mathematic model about geo satellite platform and each subsystem
通過geo衛星軌道動力學分析，建立了衛星總體和各子系統的數學模型。採用遺傳演算法（ ga ）對mpt用於geo的ot和nssk進行了系統和任務優化計算。 -
Finally, the technique of vibration suppression is discussed. the passive isolation that is simple is adopted for high frequency part and the effort of high frequency suppression is obvious. the bandwidth adaptive that doesn ’ t need new plants is adopted for low frequency part and simulation results indicate that the scheme is valid for the suppression of bit error rate increasing produced by satellite platform vibration
最後對振動的抑制方法進行了研究，對高頻振動採用被動隔離方式，該方法操作簡單，對高頻振動抑制效果顯著;對低頻振動採用了自適應帶寬抑制方式，該方法無需添加新器件，對抑制低頻振動帶來的誤碼率增加作用明顯，並進行了模擬驗證。 -
Secondly, the performance of the acousto - optic steering system is deteriorated as a result of the coupling because of nonlinear of quadrant detector and the pointing error introduced by satellite platform vibration. for this problem, this paper introduces the model reference adaptive control system, and presents the perfect model. the model reference adaptive controller is designed to force the output of the acousto - optic steering system following the output of the perfect model to improve the system performance
其次，針對聲光偏轉系統由於器件的非線性造成的耦合和平臺振動造成的指向誤差導致系統性能惡化問題，引入了模型參考自適應控制系統，提出了理想的模型，設計了模型參考自適應控制器，強迫性能惡化的聲光偏轉系統的輸出跟隨理想模型的輸出，使其性能改善，利用超穩定性理論確定自適應參數以保證系統的穩定性。 -
Variable structure attitude control of a large flexible satellite platform
大型柔性衛星平臺的變結構姿態控制 -
Infrared imager ’ s mass and the structure dimensions are strictly restricted by the satellite platform, so infrared imager mechanical structure must be packed, agile and firm
由於所搭載的衛星平臺對紅外成像儀質量和結構尺寸有嚴格的限制，紅外成像儀必須做到結構緊湊，輕巧可靠。 -
In the reporting period, chinacast continued to be the group s strategic satellite platform to permeate the education and training service sector in china, with the technological support of other tvh units
Chinacast是集團在中國教育及培訓服務領域的衛星業務平臺，于回顧期內繼續配合宏昌其他部門的支援，擔當策略伴角色。 -
2. to simulate accurate raw data of spaceborne sar, models of satellite with elliptical orbit and targets with rotation of the earth are adopted in the process of calculating between the satellite platform and target
為了模擬得到精確的星載sar原始數據，本文在計算各時刻星載sar平臺與目標的距離時，採用了精確的數學模型：其中星載sar平臺運動軌跡採用橢圓軌道模型，地球採用橢球體模型。 -
It transmits more than 60 programming services in eight languages on 28 channels and has an audience reach of approximately 360 million people across asia, india and the middle east, using asiasat 1, asiasat 2 and palapa c2 as its satellite platform
?星電視有限公司以本港為基地，主要透過亞洲?星1號、 2號，以及巴拉巴c2等?星裝置，以28條頻道和八種語言廣播，為亞洲、印度及中東等地區約3 -
Built on hughes network s direcpc satellite platform provided by chinacast, teacher. com. cn also draws on the internet and networking strengths of sina. com, as well as the systems integration and software competencies of tvh
繼續教育網採用雙威網路提供的休斯公司direcpc衛星平臺，結合新浪網地面網際網路絡平臺的優勢，並利用宏昌科技在系統集成及軟體開發上的力量，成功建立了目前在國內最先進的遠程教育平臺。 -
This paper takes hj - 1b satellite and onboard infrared camera scanning mirror as research objects. the influences on respective motion performance caused by the dynamic interactions between them are evaluated. the emphasis is put on the influence of satellite platform ' s attitude motion upon infrared camera scanning mirror ' s continuous scanning motion
本文以hj - 1b衛星和其上的紅外相機掃描鏡為研究對象，分析兩者之間的動力學耦合對各自運動特性的影響情況，並著重分析了衛星平臺姿態振動對紅外相機掃描機構轉動的影響。 -
This dissertation established a novel distributed spaceborne sar simulation system based on the high level architecture ( hla ). this dissertation developed a mathematical model of instantaneous sphere earth model and instantaneous circle orbit model for the geometry system between the satellite platform and the targets on earth based on the satellite platform ’ s orbit features and sar system ’ s operational characteristics, unlike the traditional sphere earth model and circle orbit model
本文從建立精確的、易於模擬的星地幾何關系入手，舍棄了傳統的星載sar研究中的球型地球模型和圓形軌道模型，根據星載sar的軌道特點和sar的工作特點，對局部球型地球模型進行改進，建立了在瞬時球型地球模型和瞬時圓形軌道模型下的星載sar模擬。
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