公开(公告)号：US10056675B1

公开(公告)日：2018-08-21

申请号：US15674351

申请日：2017-08-10

申请人： The Aerospace Corporation

发明人： Robert B. Dybdal

IPC分类号： H01Q1/12 ,  H01Q25/02 ,  H01Q3/02 ,  H04B1/10

CPC分类号： H01Q1/1257 ,  H01Q3/02 ,  H01Q25/02 ,  H04B1/1036

摘要： Systems and methods are provided for repositioning a directional antenna that responds to a desired signal and directional interference. The antenna can generate a sum beam and first and second difference beams. Respective powers of the sum beam and the first and second difference beams can be determined. At least a portion of any of the directional interference can be excised from the sum beam and the first and second difference beams. Measures of the directional interference can be determined in the sum beam and the first and second difference beams. A first correlation between the sum beam and the first and second difference beams can be generated. Additional correlations between a signal identifier and the sum beam and first and second beams monitor the desired signal reception. The antenna can be repositioned away from the directional interference based on the powers, the measures, and the first correlation.

公开(公告)号：US20180162558A1

公开(公告)日：2018-06-14

申请号：US15593798

申请日：2017-05-12

申请人： The Aerospace Corporation

发明人： Chia-Chun Chao ,  Victor Shiaw-Jong Lin ,  Siegfried W. Janson

IPC分类号： B64G1/24 ,  B64G3/00 ,  B64G1/10 ,  B64G1/40

CPC分类号： B64G1/242 ,  B64G1/10 ,  B64G1/1085 ,  B64G1/24 ,  B64G1/40 ,  B64G1/405 ,  B64G3/00

摘要： A control algorithm that determines one or more deviations in an orbit of a companion satellite, and control the companion satellite to minimize effects of perturbing forces.

公开(公告)号：US09998206B2

公开(公告)日：2018-06-12

申请号：US15067900

申请日：2016-03-11

申请人： The Aerospace Corporation

发明人： Siegfried W. Janson

IPC分类号： H04B7/185

CPC分类号： H04B7/18513 ,  H04B7/18521

摘要： A plurality of spacecraft may be dispersed into a ring constellation or structure. Data may be wirelessly relayed between spacecraft similar to data flowing in a ring network. The ring structure minimizes inter-spacecraft velocities and tracking angle motion to allow use of fixed high-gain radio frequency (RF) antennas or medium-divergence lasers for crosslinks. Data may flow between spacecraft to be downloaded by the next spacecraft that will be passing over a ground station. This reduces data latency when a single ground station is used, and significantly reduces data latency when more than one ground station is used.

公开(公告)号：US20180131403A1

公开(公告)日：2018-05-10

申请号：US15796453

申请日：2017-10-27

申请人： The Aerospace Corporation

发明人： Philip Dafesh ,  Phillip Brian Hess

IPC分类号： H04B1/7107 ,  H04B1/719

CPC分类号： H04B1/7107 ,  H04B1/1027 ,  H04B1/1036 ,  H04B1/719

摘要： Under one aspect, a method is provided for processing a received signal, the received signal including a desired signal and an interference signal that spectrally overlaps the desired signal. The method can include obtaining an amplitude of the received signal. The method also can include obtaining an average amplitude of the received signal based on at least one prior amplitude of the received signal. The method also can include subtracting the amplitude from the average amplitude to obtain an amplitude residual. The method also can include, based upon an absolute value of the amplitude residual being less than or equal to a first threshold, inputting the received signal into an interference suppression algorithm so as to generate a first output including the desired signal with reduced contribution from the interference signal.

公开(公告)号：US09960602B2

公开(公告)日：2018-05-01

申请号：US14313527

申请日：2014-06-24

申请人： THE AEROSPACE CORPORATION

发明人： Kasemsan Siri

IPC分类号： H02J3/38

CPC分类号： H02J3/385 ,  Y02E10/58 ,  Y10T307/625

摘要： Optimum power tracking for distributed power sources may be provided by a family of power system architectures having distributed-input series-output (DISO) converters. The DISO converters may be controlled to achieve uniform input voltages across their respective distributed power sources while also tracking an optimum power point of the power system. Each DISO converter may be operably connected to a corresponding power source to form a power-processing channel. A controller may be operably connected to the plurality of DISO converters to control the operation thereof.

公开(公告)号：US09945032B2

公开(公告)日：2018-04-17

申请号：US15053878

申请日：2016-02-25

申请人： The Aerospace Corporation

发明人： Henry Helvajian

IPC分类号： B32B17/06 ,  C23C16/48 ,  C23C14/22 ,  C23C16/44

CPC分类号： C23C16/483 ,  C23C14/22 ,  C23C16/4415 ,  C23C16/48 ,  Y10T428/31507 ,  Y10T428/31786 ,  Y10T428/31935 ,  Y10T428/31938

摘要： Under one aspect, a structure is provided that includes a substrate including a first material having a threshold temperature above which the first material is damaged and a layer consisting essentially of a second material molecularly bonded to the first material of the substrate. The second material is formed on the substrate at a reaction temperature that is higher than the threshold temperature of the first material. An interface between the substrate and the second material is a substantially defect-free surface.

公开(公告)号：US09923598B2

公开(公告)日：2018-03-20

申请号：US15461252

申请日：2017-03-16

申请人： The Aerospace Corporation

发明人： Philip Dafesh ,  Phillip Brian Hess

IPC分类号： H04B1/00 ,  H04B1/7107 ,  H04B1/719

CPC分类号： H04B1/7107 ,  H04B1/1027 ,  H04B1/1036 ,  H04B1/719

摘要： Under one aspect, a method is provided for processing a received signal, the received signal including a desired signal and an interference signal that spectrally overlaps the desired signal. The method can include obtaining an amplitude of the received signal. The method also can include obtaining an average amplitude of the received signal based on at least one prior amplitude of the received signal. The method also can include subtracting the amplitude from the average amplitude to obtain an amplitude residual. The method also can include, based upon an absolute value of the amplitude residual being less than or equal to a first threshold, inputting the received signal into an interference suppression algorithm so as to generate a first output including the desired signal with reduced contribution from the interference signal.

公开(公告)号：US20180034793A1

公开(公告)日：2018-02-01

申请号：US15224688

申请日：2016-08-01

申请人： The Aerospace Corporation

发明人： Thomas Kibalo ,  Ronald Scrofano ,  Andrew Deeds

IPC分类号： H04L29/06 ,  G06F21/57

CPC分类号： G06F21/575

摘要： A High Assurance Configuration Security Processor (HACSP) for a computing device may perform real-time integrity measurements of an actual bitstream run-time performance against what is expected. The HACSP may be self-contained and have a relatively small footprint. The HACSP may be vendor-agnostic, and may be a trusted system application for the computing device. The HACSP may ensure the security of user application bitstream load and update during device configuration, and may implement security mechanisms for independent secure trusted attestation and integrity measurement mechanisms to report and provide reliable evidence about the “trustworthiness” of the system during user bitstream execution.

公开(公告)号：US20180011182A1

公开(公告)日：2018-01-11

申请号：US15201672

申请日：2016-07-05

申请人： The Aerospace Corporation

发明人： Seema Sud

IPC分类号： G01S13/58 ,  G01S13/90 ,  G01S13/60

CPC分类号： G01S13/9029 ,  G01S7/023

摘要： The Fractional Fourier Transform (FrFT) may be used to extract multiple radar targets in clutter where some targets may be relatively weak. To do this, stronger targets may be removed by rotating to the proper axis ta using rotational parameter a, in which the target signal becomes a strong tone. By searching for the maximum peak over all values of a, stronger moving target echoes can be found and notched out, and weaker targets can then be extracted.

公开(公告)号：US20170323982A1

公开(公告)日：2017-11-09

申请号：US15149020

申请日：2016-05-06

申请人： The Aerospace Corporation

发明人： John R. Scarpulla

IPC分类号： H01L29/872 ,  H01L21/02 ,  H01L29/66 ,  H01L29/47 ,  H01L29/36 ,  H01L29/06 ,  H01L49/02 ,  H01L27/02 ,  H01L23/31 ,  H01L23/29 ,  H01L21/311 ,  H01L21/285 ,  H01L21/266 ,  H01L21/027 ,  H03K17/08

CPC分类号： H01L29/872 ,  H01L21/02057 ,  H01L21/0217 ,  H01L21/02532 ,  H01L21/02595 ,  H01L21/0262 ,  H01L21/0273 ,  H01L21/266 ,  H01L21/28537 ,  H01L21/31116 ,  H01L23/291 ,  H01L23/3171 ,  H01L23/3185 ,  H01L27/0248 ,  H01L28/20 ,  H01L29/0619 ,  H01L29/0623 ,  H01L29/36 ,  H01L29/402 ,  H01L29/47 ,  H01L29/66143 ,  H03K17/08 ,  H03K2017/0803

摘要： Under one aspect, a power Schottky diode includes a cathode; a semiconductor disposed over the cathode, the semiconductor including at least a first region and a second region, the second region defining a guard ring; an anode disposed over the first region and at least a portion of the guard ring, the anode including a metal, a junction between the anode and the first region defining a Schottky barrier; and an oxide disposed over the guard ring. Additionally, the power Schottky diode can include a resistive material disposed over at least a portion of the guard ring and at least a portion of the oxide. The resistive material can inhibit a flow of holes from the guard ring to the anode following a heavy ion strike to the guard ring. The anode further can be disposed over at least a portion of, or the entirety of, the resistive material.