多波束通信卫星相关的专利数据

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
21	面向低轨多波束通信卫星的缓存内容放置与资源分配优化方法	CN202210634149.X	2022-06-07	CN115066018A	2022-09-16	顾术实; 左苗苗; 陈紫菡; 余子超; 张钦宇
本发明提供一种面向低轨多波束通信卫星的缓存内容放置与资源分配优化方法，包括执行以下步骤：资源分配步骤：先计算各个小区在时隙t在TTL时间内的累积剩余请求量A(j,t)，从中选择值最大的小区，分配所需的带宽和功率资源，更新剩余的资源量，然后重复这个过程，直到分配的小区数目与单颗卫星的波束数目相同或者资源分配完毕；缓存更新步骤：进行缓存更新的时候，缓存空间为C，每个文件有(C+1)个状态，0状态指该文件未被缓存，1到C状态均为缓存状态，文件i处于状态C是指它是在时刻t最新被请求的文件，文件i在时刻t的命中率Hi(t)也就是指文件i在时刻t处于这些缓存状态之一的概率。本发明的有益效果是：可更好地提高利用率和用户体验效果。
22	一种多点波束通信卫星测试天线的角度调节装置	CN201820088064.5	2018-01-19	CN207753166U	2018-08-21	刘焕生; 邹今斐; 杨博; 赵婷; 杨冬雪; 韩慧鹏
本实用新型公开了一种多点波束通信卫星测试天线的角度调节装置，包括控制板、第一编码器、第二编码器、第一伺服电机、第二伺服电机、基板、支架和底座；支架采用框架结构，底座采用空心圆柱体结构；支架上设有一个用于调节待测天线俯仰角和方位角的控制板，控制板分别与第一编码器和第二编码器电气连接；第一编码器与第一伺服电机连接，第二编码器与第二伺服电机连接；基板与支架通过第一编码器的输出轴铰接；支架与底座端面通过第二编码器的输出轴铰接。本实用新型通过控制板、编码器、伺服电机、基板、支架和底座的配合，实现了天线俯仰和方位角的灵活转动，弥补了传统测试装置测试精度较低和适用范围较小的缺陷。
23	Multibeam communications satellite	US898051	1978-04-20	US4201992A	1980-05-06	George R. Welti
A multibeam communications satellite uses a dish-shaped reflector whose surface is a surface of revolution generated by rotating a plane parabola about an axis of revolution located in the plane of the parabola but angularly displaced from the axis of symmetry thereof. The line of revolution of the focal point of the parabola defines a focal circle, and a feed located on the focal circle will illuminate an area lying on a circle near the edge of the earth's apparent disc. Since every plane in which the axis of revolution lies is a plane of symmetry, the antenna exhibits good cross polarization cancellation, making the satellite particularly useful in frequency reuse communications systems.
24	Communication satellite in multi-beam satellite communication system	JP2002072694	2002-03-15	JP2003273789A	2003-09-26	KONISHI MUNEO; INOUE MASAHIRO; HORIKAWA KOJI; NISHI YASUKI
PROBLEM TO BE SOLVED: To provide a comparatively small and low-cost communication satellite by improving the usage efficiency of frequency in feeder link. SOLUTION: The communication satellite includes: a first transmitting/ receiving apparatus for performing communication with an earth base station through the feeder link through the use of two polarized waves different in polarized wave characteristic, concerning a plurality of first frequency resources arranged at prescribed interval on a frequency axis and a plurality of second frequency resources arranged no to be superimposed on the first frequency resources; a second transmitting/receiving apparatus for performing communication with a user in a service area through a service link; and an assigning means for relating each of beams forming the service link to the first and the second frequency resources. The individual band width of the first and second frequency resources is larger than that of a channel to be assigned to the user, and smaller than that required in the service link. COPYRIGHT: (C)2003,JPO
25	Multi-beam and multi-band antenna system for communication satellites	US10659826	2003-09-10	US20050052333A1	2005-03-10	Sudhakar Rao; David Bressler
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single reflector with non-frequency selective surface. The reflector is sized to produce a required beam size at K-band frequencies and is oversized at EHF-band frequencies. The synthesized reflector surface is moderately shaped and disproportionately broadens EHF-band and Ka-band beams compared to K-band beams. The synthesized reflector surface forms multiple beams each having a 0.5-degree diameter at K-band, Ka-band, and EHF band. The multi-beam, multi-band feed array includes a number of high-efficiency, multi-mode circular horns that operate in focused mode at K-band and defocused mode at Ka-band and EHF-band by employing “frequency-dependent” design for the horns.
26	MULTI-BEAM AND MULTI-BAND ANTENNA SYSTEM FOR COMMUNICATION SATELLITES	US12165012	2008-06-30	US20080278397A1	2008-11-13	Sudhakar K. Rao; David Bressler
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single reflector with non-frequency selective surface. The reflector is sized to produce a required beam size at K-band frequencies and is oversized at EHF-band frequencies. The synthesized reflector surface is moderately shaped and disproportionately broadens EHF-band and Ka-band beams compared to K-band beams. The synthesized reflector surface forms multiple beams each having a 0.5-degree diameter at K-band, Ka-band, and EHF band. The multi-beam, multi-band feed array includes a number of high-efficiency, multi-mode circular horns that operate in focused mode at K-band and defocused mode at Ka-band and EHF-band by employing “frequency-dependent” design for the horns.
27	Multi-beam and multi-band antenna system for communication satellites	US11362427	2006-02-23	US07394436B2	2008-07-01	Sudhakar K. Rao; David Bressler
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single reflector with non-frequency selective surface. The reflector is sized to produce a required beam size at K-band frequencies and is oversized at EHF-band frequencies. The synthesized reflector surface is moderately shaped and disproportionately broadens EHF-band and Ka-band beams compared to K-band beams. The synthesized reflector surface forms multiple beams each having a 0.5-degree diameter at K-band, Ka-band, and EHF band. The multi-beam, multi-band feed array includes a number of high-efficiency, multi-mode circular horns that operate in focused mode at K-band and defocused mode at Ka-band and EHF-band by employing “frequency-dependent” design for the horns.
28	Multi-beam and multi-band antenna system for communication satellites	US11362427	2006-02-23	US20070018900A1	2007-01-25	Sudhakar Rao; David Bressler
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single reflector with non-frequency selective surface. The reflector is sized to produce a required beam size at K-band frequencies and is oversized at EHF-band frequencies. The synthesized reflector surface is moderately shaped and disproportionately broadens EHF-band and Ka-band beams compared to K-band beams. The synthesized reflector surface forms multiple beams each having a 0.5-degree diameter at K-band, Ka-band, and EHF band. The multi-beam, multi-band feed array includes a number of high-efficiency, multi-mode circular horns that operate in focused mode at K-band and defocused mode at Ka-band and EHF-band by employing “frequency-dependent” design for the horns.
29	Multi-beam and multi-band antenna system for communication satellites	US12165012	2008-06-30	US07868840B2	2011-01-11	Sudhakar K. Rao; David Bressler
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single reflector with non-frequency selective surface. The reflector is sized to produce a required beam size at K-band frequencies and is oversized at EHF-band frequencies. The synthesized reflector surface is moderately shaped and disproportionately broadens EHF-band and Ka-band beams compared to K-band beams. The synthesized reflector surface forms multiple beams each having a 0.5-degree diameter at K-band, Ka-band, and EHF band. The multi-beam, multi-band feed array includes a number of high-efficiency, multi-mode circular horns that operate in focused mode at K-band and defocused mode at Ka-band and EHF-band by employing “frequency-dependent” design for the horns.
30	Multi-beam and multi-band antenna system for communication satellites	US10659826	2003-09-10	US07034771B2	2006-04-25	Sudhakar K. Rao; David Bressler
An antenna system includes a reflector having a modified-paraboloid shape; and a multi-beam, multi-band feed array located at a focal point of the reflector so that the antenna system forms a multiple congruent beams that are contiguous. The system has a single reflector with non-frequency selective surface. The reflector is sized to produce a required beam size at K-band frequencies and is oversized at EHF-band frequencies. The synthesized reflector surface is moderately shaped and disproportionately broadens EHF-band and Ka-band beams compared to K-band beams. The synthesized reflector surface forms multiple beams each having a 0.5-degree diameter at K-band, Ka-band, and EHF band. The multi-beam, multi-band feed array includes a number of high-efficiency, multi-mode circular horns that operate in focused mode at K-band and defocused mode at Ka-band and EHF-band by employing “frequency-dependent” design for the horns.
31	Dual-band multiple beam antenna system for communication satellites	US10060822	2002-01-30	US20030142014A1	2003-07-31	Sudhakar K. Rao; David Bressler; Arun Bhattacharyya
A dual-band multiple beam antenna system for a communications satellite sharing a set of reflector antennas for the transmit and receive frequencies. One set of reflectors is common to both the downlink and uplink frequencies. The feed horns are diplexed and exhibit frequency-dependent radiation patterns that separate the phase centers over the downlink and uplink frequency bands to obtain dual-band performance. The focal point of the reflector is in close proximity to the phase center corresponding to the downlink frequency band. The phase center for the uplink frequency band is spaced a predetermined distance from the phase center of the downlink frequency band. According to the present invention, the uplink frequencies are defocused and the downlink frequencies are focused thereby creating identical radiation patterns at both frequency bands and over the coverage region of the communications satellite.
32	Dual-band multiple beam antenna system for communication satellites	US11259913	2005-10-27	US07242904B2	2007-07-10	Sudhakar K. Rao; David Bressler; Arun Bhattacharyya
A dual-band multiple beam antenna system for a communications satellite sharing a set of reflector antennas for the transmit and receive frequencies. One set of reflectors is common to both the downlink and uplink frequencies. The feed horns are diplexed and exhibit frequency-dependent radiation patterns that separate the phase centers over the downlink and uplink frequency bands to obtain dual-band performance. The focal point of the reflector is in close proximity to the phase center corresponding to the downlink frequency band. The phase center for the uplink frequency band is spaced a predetermined distance from the phase center of the downlink frequency band. According to the present invention, the uplink frequencies are defocused and the downlink frequencies are focused thereby creating identical radiation patterns at both frequency bands and over the coverage region of the communications satellite.
33	Reconfigurable multibeam communications satellite having frequency channelization	US09222200	1998-12-23	US06442148B1	2002-08-27	Gerald J. Adams; Paul D. Tarbuck; Robert E. Vaughan; Shih-Chang Wu; Thomas S. La France; Sudhakar K. Rao
A satellite subsystem for a satellite employs a reconfigurable communications payload and active array antennas. The subsystem includes an active receive array antenna having a reconfigurable beam forming network for forming input beam signals from input signals received by the receive antenna from sources. An input switch matrix power divides the input beam signals into sets of input beam signals. Each of the channel signals corresponds to a respective channel of the input beam signals. The subsystem further includes a channelizer having a plurality of channel processors each receiving at least one input beam signal from the input switch matrix. The channel processors filter the input beam signals into channel signals. Each of the channel signals corresponds to a respective channel of the input beam signals. The channel processors change the frequency of at least one channel signal to route the at least one channel signal to a different channel than the respective channel of the input beam signals. An output switch matrix combines the channel signals into output beam signals. Each of the channel signals corresponds to a respective channel of the output beam signals. An active transmit array antenna having a reconfigurable beam forming network forms output signals from the output beam signals for transmission by the transmit array antenna to destinations.
34	柔軟な順方向容量および戻り容量割り当てのために１フレームにわたり同期化された送受信切替パターンを有するハブ−スポークシステムのマルチビーム通信衛星のペイロード	JP2014523089	2012-07-27	JP5637550B2	2014-12-10	ジェイ．ミラー，マーク; ヴイ．ビュル，ケネス

35	Device and Method for Processing Data by Modulating Sets of Spreading Pseudocodes as a Function of Data Destination Cells for a Multi-Beam Communication Satellite	US12067604	2006-09-22	US20080298439A1	2008-12-04	Olivier Courseille; Catherine Dargeou; Pascal Aubert; Gerard Raguenet
A device (D) is dedicated to the processing of data by spread spectrum coding for a multi-beam communication satellite (S), each beam (B1-B6) of which is associated with a terrestrial cell (C1-C6) contained in a satellite coverage zone (ZC). This device (D) comprises coding means (MC) charged i) with associating, on the one hand, sets of pseudo-spreading codes (J1-J4), differing pairwise, with adjacent cells of the zone (ZC) and with signalling channels common to the collection of cells (C1-C6) of this zone (ZC), and on the other hand, identical sets of pseudo-spreading codes with non-adjacent cells of the zone, the sets (J1-J4) being chosen from among sets resulting from the subdivision of a collection of pseudo-spreading codes, and ii) when data have to be broadcast in a cell (C1) and/or common information data have to be broadcast in the collection of cells, with modulating pseudo-spreading codes belonging to the set (J1) associated with this cell (C1) with the data to be broadcast, then with modulating a carrier, whose frequency (f) is the same for all the beams (B1-B6) of the satellite (S), with the modulated pseudo-spreading codes so that the modulated carrier is broadcast towards the cell (C1) or the collection of cells (C1-C6) by means of the associated beam (B1).
36	一种基于低轨移动通信卫星的通信方法	CN201910452270.9	2019-05-28	CN110208822B	2021-06-11	蒙艳松; 严涛; 周昀; 王瑛; 雷文英; 王国永; 边朗
一种基于低轨移动通信卫星的通信方法，生成安全定位授时的低轨移动通信卫星信号并进行通信；该信号具有如下特征：时域结构：该通信卫星信号在时域采用时分复用体制；频域结构：该通信卫星信号在频域采用频分复用体制；该通信卫星信号为多波束多色复用体制，每个波束根据需要使用一个或者多个子频带，同时满足相邻波束的多色复用，以降低波束间干扰；该通信卫星信号中至少有一个子频带，用于播发寻呼信道信号,即PCH信号；该通信卫星信号的子频带，除去播发PCH信号的，剩余的可用于宽带扩频的安全定位授时SPT信号，SPT信号在播发PCH信号的NPCH个时隙中播发。本发明设计通信导航融合SPT信号体制，实现定位授时以及抗干扰能力提升。
37	一种基于低轨移动通信卫星的通信方法	CN201910452270.9	2019-05-28	CN110208822A	2019-09-06	蒙艳松; 严涛; 周昀; 王瑛; 雷文英; 王国永; 边朗
一种基于低轨移动通信卫星的通信方法，生成安全定位授时的低轨移动通信卫星信号并进行通信；该信号具有如下特征：时域结构：该通信卫星信号在时域采用时分复用体制；频域结构：该通信卫星信号在频域采用频分复用体制；该通信卫星信号为多波束多色复用体制，每个波束根据需要使用一个或者多个子频带，同时满足相邻波束的多色复用，以降低波束间干扰；该通信卫星信号中至少有一个子频带，用于播发寻呼信道信号,即PCH信号；该通信卫星信号的子频带，除去播发PCH信号的，剩余的可用于宽带扩频的安全定位授时SPT信号，SPT信号在播发PCH信号的NPCH个时隙中播发。本发明设计通信导航融合SPT信号体制，实现定位授时以及抗干扰能力提升。
38	一种基于跳频跳时定位授时功能的低轨移动通信卫星系统	CN201910672839.2	2019-07-24	CN110557169A	2019-12-10	蒙艳松; 严涛; 王瑛; 周昀; 雷文英; 王国永; 边朗
本发明一种基于跳频跳时定位授时功能的低轨移动通信卫星系统，包括低轨移动通信卫星和地面终端；低轨移动通信卫星上设置有多波束天线，低轨移动通信卫星能够通过多波束天线向地面终端发送基于跳频跳时定位授时功能的低轨移动通信卫星信号，系统的基于跳频跳时定位授时功能的低轨移动通信卫星信号具有高的瞬时落地功率，结合跳频跳时特征，具有强的抗干扰能力，能够提供安全的定位授时服务。地面终端只需接收至少一颗低轨移动通信卫星播发的信号，能够实现对终端自身的定位与授时功能。
39	一种基于跳频跳时定位授时功能的低轨移动通信卫星系统	CN201910672839.2	2019-07-24	CN110557169B	2022-01-04	蒙艳松; 严涛; 王瑛; 周昀; 雷文英; 王国永; 边朗
本发明一种基于跳频跳时定位授时功能的低轨移动通信卫星系统，包括低轨移动通信卫星和地面终端；低轨移动通信卫星上设置有多波束天线，低轨移动通信卫星能够通过多波束天线向地面终端发送基于跳频跳时定位授时功能的低轨移动通信卫星信号，系统的基于跳频跳时定位授时功能的低轨移动通信卫星信号具有高的瞬时落地功率，结合跳频跳时特征，具有强的抗干扰能力，能够提供安全的定位授时服务。地面终端只需接收至少一颗低轨移动通信卫星播发的信号，能够实现对终端自身的定位与授时功能。
40	卫星天线坐标系下多波束天线指向偏差的测量与校准方法	CN202310201611.1	2023-03-06	CN116470950A	2023-07-21	孙晨华; 江会娟; 章劲松; 刘钊
本发明涉及一种卫星天线坐标系下多波束天线指向偏差的测量与校准方法，属于卫星通信技术领域。本发明以移动通信卫星相控阵多波束天线指向偏差的测量与校准作为输入，建立指向测量关系模型，将地面标校站作为射频无线电传感器，利用地面标校站与卫星姿态间的关系模型，通过调整卫星姿态或相控阵天线波束成形参数，调整移动通信卫星相控阵多波束天线的波束指向，实现多波束天线指向偏差的校准。

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