公开(公告)号：US20150001345A1

公开(公告)日：2015-01-01

申请号：US14345515

申请日：2012-09-19

Applicant: ASTRIUM SAS

Inventor： Bernard Polle

IPC: B64G1/28 ,  B64G1/26 ,  B64G1/44 ,  B64G1/24

CPC classification number: B64G1/28 ,  B64G1/242 ,  B64G1/26 ,  B64G1/283 ,  B64G1/407 ,  B64G1/443 ,  B64G2001/245

Abstract: A method of controlling the attitude of a satellite in orbit around a celestial body. The attitude of the satellite being controlled by a momentum storage device and controllable surfaces of the satellite configured to create desaturation torques in the storage device by using solar pressure. The controllable surfaces are arranged on solar panels mobile in rotation around an axis Y. At least one electric thruster configured to control the orbit of the satellite also controls the attitude of the satellite. The orientation of the electric thruster is controlled to activate the electric thruster with a thrust direction deliberately not aligned with a center of mass of the satellite to create desaturation torques in the storage device along axis Y. The controllable surfaces are controlled to create desaturation torques of the storage device in a plane orthogonal to the Y axis.

Abstract translation: 控制卫星在天体周围轨道姿态的方法。 卫星的姿态由动量存储装置控制，卫星的可控表面被配置为通过使用太阳能压力在存储装置中产生去饱和转矩。 可控表面被布置在围绕轴线Y旋转移动的太阳能电池板上。构造成控制卫星轨道的至少一个电推进器也控制卫星的姿态。 电动推进器的方位被控制以使推力方向有意地不与卫星的质心对准，从而在沿轴线Y的存储装置中产生去饱和转矩。可控制的表面被控制以产生去饱和转矩 存储装置在与Y轴正交的平面中。

公开(公告)号：US20140362896A1

公开(公告)日：2014-12-11

申请号：US14366633

申请日：2012-12-21

Applicant: ASTRIUM SAS

Inventor： Jean-Marc Aymes ,  Raphael Sanchez ,  Frederic Voulouzan

IPC: H04B17/00 ,  H04B7/185

CPC classification number: H04B7/18519 ,  G01S5/021 ,  H04B7/08 ,  H04B17/21 ,  H04B17/27 ,  H04B17/309

Abstract: A method and system for estimating a path difference between two paths followed by a target signal transmitted by a spacecraft or aircraft to a first receiving antenna and a second receiving antenna of a receiving base, respectively. A useful-phase difference is measured between signals corresponding to the target signal received on the first receiving antenna and second receiving antenna. The path difference is estimated on the basis of the measurements of the useful-phase difference. A calibration signal is transmitted to the receiving base and a calibration phase difference between signals corresponding to the calibration signal received on the first receiving antenna and second receiving antenna is measured. Variations are compensated in the measurements of the calibration-phase difference relative to the measurements of the useful-phase difference.

Abstract translation: 一种方法和系统，用于分别估计由航天器或飞机发送到接收基座的第一接收天线和第二接收天线的目标信号之后的两个路径之间的路径差。 在与在第一接收天线和第二接收天线上接收的目标信号相对应的信号之间测量有用相位差。 基于有用相位差的测量来估计路径差。 校准信号被发送到接收基站，并且测量与在第一接收天线和第二接收天线上接收的校准信号相对应的信号之间的校准相位差。 在相对于有用相位差的测量的校准 - 相位差的测量中补偿变化。

公开(公告)号：US20140232416A1

公开(公告)日：2014-08-21

申请号：US14136816

申请日：2013-12-20

Applicant: CENTRE NATIONAL D'ETUDES SPATIALES CNES ,  ASTRIUM SAS

Inventor： EMMANUELLE CARLA ,  HENRI BARDE

IPC: G01R31/12

CPC classification number: G01R31/12 ,  G01R31/08 ,  H02S50/10

Abstract: A system and method for detecting and locating an insulation flaw in a solar generator on a spacecraft. The solar generator comprises a plurality of flaps. Each flap bears at least one solar cell that is connected to an electrical distribution network and electrically insulated from the flap. Each flap is connected, by a first load and by a second load, to a first electrical line and a second electrical line, respectively. The ratio of the impedances of the first load and of the second load of a flap being denoted as an impedance ratio of the flap. The solar generator comprises at least two flaps exhibiting different respective impedance ratios. The system comprises a component for evaluating the currents flowing in the first and second electrical lines, and a detector for detecting and locating an insulation flaw in the solar generator based on the evaluations of the currents.

Abstract translation: 一种用于检测和定位太空发电机中的绝缘缺陷的系统和方法。 太阳能发电机包括多个襟翼。 每个翼片承载至少一个太阳能电池，其连接到配电网并与电动电隔离。 每个翼片分别通过第一负载和第二负载连接到第一电线和第二电线。 翼片的第一负载和第二负载的阻抗的比值被表示为翼片的阻抗比。 太阳能发电机包括至少两个具有不同阻抗比的薄片。 该系统包括用于评估在第一和第二电线中流动的电流的部件，以及用于基于电流的评估来检测和定位太阳能发电机中的绝缘缺陷的检测器。

公开(公告)号：US20140168502A1

公开(公告)日：2014-06-19

申请号：US14092333

申请日：2013-11-27

Applicant: CENTRE NATIONAL D'ETUDES SPATIALES C N E S ,  ASTRIUM SAS

Inventor： Pierre-Luc Georgy

IPC: H04N5/232

CPC classification number: H04N5/23212 ,  G02B7/285 ,  G02B7/38

Abstract: A method for characterizing an optical focusing defect of an image capture instrument is based on contrast values. Said contrast values are calculated for two images of a same scene portion, captured in respective overlapping length segments of two image sensors. To this end, the sensors are mounted in an image capture instrument so that the overlapping length segments between the sensors are situated at different heights along a focusing direction perpendicular to said sensors.

Abstract translation: 用于表征图像捕获仪器的光学聚焦缺陷的方法基于对比度值。 对于在两个图像传感器的相应重叠长度段中捕获的相同场景部分的两个图像计算所述对比度值。 为此，将传感器安装在图像捕获仪器中，使得传感器之间的重叠长度段沿垂直于所述传感器的聚焦方向位于不同的高度。

公开(公告)号：US10094441B2

公开(公告)日：2018-10-09

申请号：US14351584

申请日：2012-10-22

Applicant: Astrium Sas

Inventor： Thierry Abensur ,  Gérald Pignie ,  Alizée Vergnol ,  Susana Perez-Diago

IPC: F16F9/00 ,  F16F9/30 ,  F16F15/02 ,  B64G1/40

Abstract: An electromechanical actuator (10), comprising a movable member (14) provided with connecting means (20) and translationally movable with respect to a frame (12), and an energy absorbing-dissipating structure (28, 30) located on a strain path between said connecting means (20) and said frame (12) and comprising a porous capillary matrix (40) having an apparent porosity and an associated liquid (42) having a wetting angle higher than 90 degrees relative to said matrix (40) and selected such that part of said liquid (42) penetrates the pores of said matrix (40), when said chamber is subjected to a pressure equal to or higher than a first pressure level P1, and is spontaneously rejected off the pores of said matrix (40) by capillary action, when said structure is subjected to a pressure lower than a second pressure level P2 itself lower than said first pressure level P1.

公开(公告)号：US09625182B2

公开(公告)日：2017-04-18

申请号：US14365629

申请日：2012-12-13

Applicant: ASTRIUM SAS

Inventor： Christophe Figus

IPC: F25B6/02 ,  F28D15/04 ,  H05K7/20

CPC classification number: F25B6/02 ,  F28D15/043 ,  H05K7/20 ,  H05K7/20309 ,  H05K7/20318 ,  H05K7/20327

Abstract: A device for cooling at least two distinct heat sources comprises a closed circuit in which a diphasic fluid flows. At least one capillary evaporator is configured to be placed in thermo contact with one of the heat sources, referred to as the primary heat source. Each other heat source referred to as a secondary heat source that is to be cooled. At least one exchanger configured to be placed in thermal contact with the secondary heat source. At least one first condenser positioned downstream of the evaporator, and upstream of the at least one exchanger. At least one last condenser positioned upstream of the evaporator and downstream of the at least one exchanger.

公开(公告)号：US09517590B2

公开(公告)日：2016-12-13

申请号：US14352536

申请日：2012-10-18

Applicant: ASTRIUM SAS

Inventor： Louis Dandaleix

IPC: B29C67/00 ,  F02K9/60 ,  B64G1/40 ,  F17C13/00

CPC classification number: B29C67/0077 ,  B29C64/153 ,  B29C64/35 ,  B29C2071/0045 ,  B29C2071/022 ,  B33Y10/00 ,  B33Y80/00 ,  B64G1/402 ,  F02K9/605 ,  F05D2300/614 ,  F17C13/008 ,  F17C2201/0104 ,  F17C2201/0157 ,  F17C2221/08 ,  F17C2223/0153 ,  F17C2270/0194 ,  F17C2270/0197 ,  Y10T29/49826 ,  Y10T137/86348

Abstract: A device for expelling/containing a predetermined liquid. The device configured to be built into a liquid tank operable at low or zero gravity and comprising a unitary three-dimensional sponge structure. The sponge structure comprises a set of substantially wire-like elements that extend between a peripheral area of the sponge structure and an area for expelling/containing liquid. The wire-like elements are substantially oriented in the direction of flow of the fluid within the device. The wire-like elements are connected together by crosspieces and are arranged such that the capillary gradient is positive or zero in the direction of flow of the fluid from the peripheral area to the area for expelling/containing liquid.

Abstract translation: 用于排出/容纳预定液体的装置。 该装置被配置成内置在可在低重力或零重力下操作并且包括一体的三维海绵结构的液体罐中。 海绵结构包括在海绵结构的周边区域和用于排出/容纳液体的区域之间延伸的一组基本上线状的元件。 线状元件基本上在装置内的流体的流动方向上取向。 线状元件通过挡条连接在一起，并且布置成使得毛细管梯度在流体从周边区域流到排出/容纳液体的区域的流动方向上为正或零。

公开(公告)号：US09331775B2

公开(公告)日：2016-05-03

申请号：US14060776

申请日：2013-10-23

Applicant: ASTRIUM SAS

Inventor： Mathieu Picard ,  Alexandre Mege

IPC: H04B7/185

CPC classification number: H04B7/18523 ,  H04B7/18517

Abstract: A method (50) for detecting broadcast signals, transmitted by terrestrial sources (40) and received by a satellite (20), in individual signals obtained respectively from different individual antennas (24) of an antenna array (22) of the satellite, includes a first detection iteration (51a) and a second detection iteration (51b), each of the first and second detection iterations including a step (52) of forming, from the individual signals, virtual beams of different respective main radiation directions, and a step of searching for the presence of broadcast signals in the virtual beams. Furthermore, for at least one broadcast signal detected during the first detection iteration, the respective contributions of the at least one detected broadcast signal to the different individual signals are attenuated, relative to the first detection iteration, for all or part of the virtual beams formed during the second detection iteration. A system (10) for detecting broadcast signals is also described.

Abstract translation: 一种用于检测由卫星（20）接收的地面源（40）发射并由卫星的天线阵列（22）分别获得的各个信号中获得的各个信号的广播信号的方法（50），包括： 第一检测迭代（51a）和第二检测迭代（51b），第一和第二检测迭代中的每一个包括从各个信号形成不同的各个主辐射方向的虚拟波束的步骤（52） 搜索虚拟光束中的广播信号的存在。 此外，对于在第一检测迭代期间检测到的至少一个广播信号，至少一个检测到的广播信号对不同的各个信号的相应贡献相对于第一检测迭代被衰减，用于形成的所有或部分虚拟波束 在第二次检测迭代期间。 还描述了一种用于检测广播信号的系统（10）。

公开(公告)号：US09239225B2

公开(公告)日：2016-01-19

申请号：US14304240

申请日：2014-06-13

Applicant: ASTRIUM SAS ,  CENTRE NATIONAL D'ETUDES SPATIALES C N E S

Inventor： Frédéric Pasternak

IPC: G01B9/02 ,  G01J3/45 ,  G01J3/453

CPC classification number: G01B9/02049 ,  G01B9/02015 ,  G01J3/45 ,  G01J3/4535 ,  G01J3/4537

Abstract: A Fourier-transform interferometer with self-apodization compensation comprises at least one pair of mobile prisms forming a plate with thickness which varies at the same time as an optical path length difference is itself varied. The prisms are displaced using a mobile system with a single degree of freedom, comprising two support elements and at least two rotatably hinged levers. The interferometer is adapted to be installed on board a satellite, for spectral analysis of a radiation originating from the Earth's surface.

Abstract translation: 具有自变迹补偿的傅里叶变换干涉仪包括至少一对可移动棱镜，其形成板，其厚度随着光程长度差自身变化而同时变化。 使用具有单个自由度的移动系统来移动棱镜，包括两个支撑元件和至少两个可旋转铰接的杠杆。 该干涉仪适于安装在卫星上，用于对来自地球表面的辐射进行光谱分析。

公开(公告)号：US09143689B2

公开(公告)日：2015-09-22

申请号：US14124362

申请日：2013-05-27

Applicant: ASTRIUM SAS

Inventor： Pierre-Luc Georgy

IPC: H04N5/232 ,  G02B27/64

CPC classification number: H04N5/23274 ,  G02B27/646 ,  H04N5/23254 ,  H04N5/2329

Abstract: A method for stabilizing a line of sight of an imaging system on board a satellite uses windows selected within an image sensor. Variations of the line of sight can be characterized at a frequency that is greater than that of a sequential mode of image acquisition by the sensor. The stabilization method can be implemented at the same time as the full-frame acquisition of images by means of the imaging system.

Abstract translation: 用于稳定卫星上的成像系统的视线的方法使用在图像传感器内选择的窗口。 视线的变化可以以比传感器的顺序图像采集模式更大的频率来表征。 稳定方法可以通过成像系统与图像的全帧采集同时实现。