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公开(公告)号：EP2769918A1
公开(公告)日：2014-08-27
申请号：EP13275043.1
申请日：2013-02-26
申请人： Astrium Limited
CPC分类号： B64G1/402 , F02K9/605 , F05D2270/303 , G01F23/288
摘要： A propellant tank assembly (100) for a spacecraft comprises a body (101) for containing propellant, and a plurality of tomography elements (201) disposed around the body (101) for detecting a distribution of the propellant inside the body (101). In an embodiment, the propellant tank body (101) includes a propellant management device (110) inside the body (101) and the tomography elements (201) are disposed in proximity to the propellant management device (110). Tomography data can be obtained from the plurality of tomography elements (201), and a distribution of propellant within the propellant tank body (101) can be determined based on the obtained tomography data. When the plurality of tomography elements (201) are thermal tomography elements including a plurality of temperature-control elements, the temperature-control elements can be controlled to redistribute the propellant inside the propellant tank body by heating and/or cooling the propellant.
摘要翻译： 用于航天器的推进剂罐组件（100）包括用于容纳推进剂的主体（101）和设置在所述主体（101）周围的多个断层摄影元件（201），用于检测所述推进剂在所述主体（101）内的分布。 在一个实施例中，推进剂罐体（101）包括在主体（101）内部的推进剂管理装置（110），并且断层摄影元件（201）设置在靠近推进剂管理装置（110）的位置。 可以从多个断层摄影元件（201）获得层析成像数据，并且可以基于获得的断层摄影数据来确定推进剂罐体（101）内的推进剂的分布。 当多个层析成像元件（201）是包括多个温度控制元件的热断层摄影元件时，可以控制温度控制元件，以通过加热和/或冷却推进剂来重新分配推进剂罐内的推进剂。
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公开(公告)号：EP2674780B1
公开(公告)日：2014-08-27
申请号：EP12275093.8
申请日：2012-06-15
申请人： Astrium Limited
CPC分类号： G01S19/42 , G01S13/003 , G01S13/955 , G01S19/14 , G01S19/37 , Y02A90/18
摘要： Apparatus for processing a sequence of samples of a received signal R reflected by a target surface and having a delay and a frequency shift relative to a reference signal D to obtain a delay Doppler map for the reflected signal, the apparatus comprising: a first correlation module (9) for obtaining a plurality of partial correlations z(n', k) between the sequence of samples x r (n) corresponding to the reflected signal R and a sequence of samples x d (n) corresponding to the reference signal D, across a set of delays, the first correlation module being configured to obtain a number of partial correlations z(n', k) of said plurality of partial correlation, providing one partial correlation sample for each delay, by obtaining a DFT of at least a first sequence of samples and a DFT of at least a second sequence of samples, the first sequence comprising at least one subsequence of samples of the reflected signal and the second sequence comprising at least one associated subsequence of samples of the reference signal, and to obtain an inverse DFT of a sequence of samples derived from at least said DFTs of the first and second sequences; a memory (10) for storing a plurality of sets of partial correlation samples, the samples of each set corresponding to the partial correlations for a different delay; and a second correlation module (11) for obtaining a DFT of the samples in each set to determine the correlation between the sequences of samples of the reflected and the reference signals across a plurality of frequency shifts at each delay of the set of delays.
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43.发明公开
公开(公告)号：EP2766759A1
公开(公告)日：2014-08-20
申请号：EP12773292.3
申请日：2012-10-09
申请人： Astrium Limited
发明人： SWEENEY, Stephen , ZHANG, Yaping
CPC分类号： G02B6/293 , G01J3/0205 , G01J3/0218 , G01J3/0259 , G02B6/29341
摘要： A structure for guiding electromagnetic radiation, comprising: a substrate (230); a waveguide (220) provided on the substrate and having a first end (220a) for receiving electromagnetic radiation and a second end (220b); and an anti-reflection region (270) provided at the second end (220b) of the waveguide on the substrate, the length and the width of the anti-reflection region being optimised to suppress back reflection of radiation that reaches the second end.
摘要翻译： 一种用于引导电磁辐射的结构，包括：基底（230）; 设置在所述基板上并具有用于接收电磁辐射的第一端（220a）和第二端（220b）的波导（220）; 以及设置在基板上的波导的第二端（220b）的抗反射区域（270），抗反射区域的长度和宽度被优化以抑制到达第二端的辐射的反射。
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公开(公告)号：EP2766758A1
公开(公告)日：2014-08-20
申请号：EP12773291.5
申请日：2012-10-09
申请人： Astrium Limited
发明人： SWEENEY, Stephen , ZHANG, Yaping
IPC分类号： G02B6/293
CPC分类号： G02B6/12004 , G02B6/29335 , G02B6/29338 , G02B6/29341 , G02B6/29343 , G02B6/29389 , G02B6/29391
摘要： A device comprising: a substrate (110); a plurality of resonators (130) on the substrate, each of the resonators of the plurality of resonators being resonant at a predetermined wavelength of electromagnetic radiation and at least some of the resonators being arranged to operate in different resonance orders; a waveguide (120) on the substrate, the waveguide being coupled to the plurality of resonators for guiding the electromagnetic radiation to the plurality of resonators, wherein the resonance order of each resonator along the waveguide is optimised to maximise the coupling of light into the resonators.
摘要翻译： 一种器件，包括：衬底（110）; 基板上的多个谐振器（130），所述多个谐振器中的每一个谐振器在电磁辐射的预定波长处谐振，并且谐振器中的至少一些谐振器被布置成以不同的谐振次序操作; 在所述衬底上的波导（120），所述波导耦合到所述多个谐振器，用于将所述电磁辐射引导到所述多个谐振器，其中沿着所述波导的每个谐振器的谐振次数被优化以最大化光耦合到所述谐振器 。
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公开(公告)号：EP2766756A1
公开(公告)日：2014-08-20
申请号：EP12769137.6
申请日：2012-10-09
申请人： Astrium Limited
发明人： SWEENEY, Stephen , ZHANG, Yaping
CPC分类号： G02B6/29389 , G01J3/0205 , G01J3/26 , G01J3/42 , G02B5/22 , G02B6/29341
摘要： A device for detecting electromagnetic radiation comprises a waveguide and at least one resonator on a substrate, and a low-refractive index region between each resonator and the substrate. The low-refractive index region has a lower refractive index than a material of the resonator. The low-refractive index region may be annular, and may have a width corresponding to a width of a region in which electromagnetic radiation is concentrated in a whispering-gallery resonant mode. The low-refractive index region may be an air gap between the substrate and the resonator. The device may be a spectrometer for detecting a plurality of predetermined wavelengths of electromagnetic radiation.
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公开(公告)号：EP2145386B1
公开(公告)日：2013-11-20
申请号：EP08737165.4
申请日：2008-05-02
申请人： Astrium Limited
CPC分类号： H03F3/602 , H03F1/0205 , H03F1/3235 , H03F1/3247 , H03F1/3282 , H03F1/345 , H03F3/68 , H03F2200/105 , H03F2200/192 , H03F2200/204 , H03F2200/451 , H03F2201/3212 , H03F2201/3218
摘要： Feedback loops are used within a Multiport Amplifier (MPA) of a communications satellite to maintain phase and amplitude tracking and hence isolation and combining performance. at Ku and Ka-bands, for which there is increasing interest in MPA applications, and where wavelengths are short and maintenance of phase/amplitude tracking becomes highly challenging. Feedback loops are located at strategic points within the MPA Output Network (ONET) to detect tracking errors and provide compensation. Errors are detected through power measurements at “null points”, with zero power corresponding to accurate tracking. The feedback loops adjust the MPA phase/gains such that the levels at these points are maintained at zero. The scheme operates with a pilot signal for measurement of nulls, injected at one of the MPA inputs.
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公开(公告)号：EP2581772A1
公开(公告)日：2013-04-17
申请号：EP11275127.6
申请日：2011-10-14
申请人： Astrium Limited
CPC分类号： G01J3/0256 , G01J3/0205 , G01J3/0259 , G02B6/1228 , G02B6/29343
摘要： A spectrometer comprises a substrate and a waveguide on the substrate, the waveguide including an elongate part and a tapered input for guiding electromagnetic radiation to the elongate part. The tapered input includes an input end for receiving the electromagnetic radiation and an output end coupled to the elongate part, the input end being wider than the output end. The spectrometer may further comprise a plurality of resonators coupled to the elongate part of the waveguide.
摘要翻译： 光谱仪包括衬底和衬底上的波导，波导包括细长部分和用于将电磁辐射引导到细长部分的锥形输入。 锥形输入包括用于接收电磁辐射的输入端和耦合到细长部分的输出端，输入端比输出端宽。 光谱仪还可以包括耦合到波导的细长部分的多个谐振器。
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48.发明授权RECONFIGURABLE SATELLITE PAYLOAD FOR ANALOG PROCESSING OF RADIOFREQUENCY SIGNALS 有权可重构的卫星有效载荷模拟处理高频信号
公开(公告)号：EP1810423B1
公开(公告)日：2013-03-27
申请号：EP05803190.7
申请日：2005-10-21
申请人： Astrium Limited
发明人： THOMAS, Glyn Bolton, EADS Astrium Limited , COBB, Gary Raymond, EADS Astrium Limited , WEAVER, Graham Michael, EADS Astrium Limited
CPC分类号： H04B7/18515 , H04B7/2041
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公开(公告)号：EP2550594A2
公开(公告)日：2013-01-30
申请号：EP11715454.2
申请日：2011-03-21
申请人： Astrium Limited
发明人： FARRUGIA, Lewis
IPC分类号： G06F7/58
CPC分类号： G06F7/582
摘要： The present invention relates to a pseudo-noise generator comprising a plurality of pseudo-random number generators and an averaging unit. The averaging unit is arranged to receive a plurality of pseudo-random numbers from the plurality of pseudo-random number generators, calculate a mean value of the plurality of pseudo-random numbers, and output said mean value as a digital pseudo-noise signal.
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公开(公告)号：EP2489137A2
公开(公告)日：2012-08-22
申请号：EP10763369.5
申请日：2010-10-08
申请人： Astrium Limited
IPC分类号： H04B7/185
CPC分类号： H04B7/18523 , H04H60/90 , H04H2201/70 , H04N7/17318 , H04N21/2543 , H04N21/44222 , H04N21/6143 , H04N21/6193 , H04N21/6582
摘要： A terminal for communicating with a communication satellite A terminal comprising: a first transceiver for communicating with at least one device in a short range network; a second transceiver for communicating with a geostationary communication satellite in a network deploying a plurality of forward channels for the communication satellite to transmit data to said terminal and a plurality of return channels for the terminal to transmit data to said communication satellite, the second transceiver being configured to transmit data from said at least one device in one of said plurality of return channels. The at least one device may comprise a plurality of utility meters and other sensors. A large system comprising a plurality of the terminals, a communication satellite and a data authority may provide a system for collecting utility meter readings across a geographical region.
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