Black silicon blackbody calibration target

    公开(公告)号:US10371579B1

    公开(公告)日:2019-08-06

    申请号:US15386821

    申请日:2016-12-21

    IPC分类号: G01K15/00 G01J5/52

    摘要: The disclosure is directed to a blackbody calibration target having a textured silicon substrate comprising a base comprising a plurality of needle like structures extending away from the base and having a total emissivity of greater than 99.5% from an electromagnetic radiation source having a wavelength greater than or equal to about 400 nanometers and less than or equal to about 1 mm. The disclosure is further directed to a blackbody calibration target system, and instrument which includes the blackbody calibration target, and a method of calibrating an instrument.

    Automatic dependent surveillance broadcast (ADS-B) system with radar for ownship and traffic situational awareness

    公开(公告)号:US10302759B1

    公开(公告)日:2019-05-28

    申请号:US15149451

    申请日:2016-05-09

    发明人: Ricardo A Arteaga

    摘要: The present invention proposes an automatic dependent surveillance broadcast (ADS-B) architecture and process, in which priority aircraft and ADS-B IN and radar traffic information are included in the transmission of data through the telemetry communications to a remote ground control station. The present invention further proposes methods for displaying general aviation traffic information in three and/or four dimension trajectories using an industry standard Earth browser for increased situation awareness and enhanced visual acquisition of traffic for conflict detection. The present invention enable the applications of enhanced visual acquisition of traffic, traffic alerts, and en-route and terminal surveillance used to augment pilot situational awareness through ADS-B IN display and information in three or four dimensions for self-separation awareness.

    Relative deflection detector
    3.
    发明授权

    公开(公告)号:US10293481B1

    公开(公告)日:2019-05-21

    申请号:US15378790

    申请日:2016-12-14

    摘要: In an embodiment, a relative deflection detector may include at least two structural arcs, and a predetermined number of means for measuring position capable of determining the relative deflection in a first component. The at least two structural arcs may be for example, comprised of a first and second structural arc whereby the first and second structural arcs are attached to the first component at respective first and second predetermined locations and whereby each arc is comprised of a respective sequence of indicators, such as, for example, codes inscribed on the outer circumference of each arc. The first and second structural arcs may be positioned in concentric and coplanar relationship with each other. The predetermined number of sensors may be comprised of a first and second optical encoder sensor each positioned in proximate and coplanar relationship with the first and second structural arcs so as to read the first sequence of codes, second sequence of codes, or both, and thereby detect positions of each structural arc (e.g., a first position corresponding to the first structural arc and a second position corresponding to the second structural arc). The first and second positions may be used to calculate and thereby determine a relative deflection of the first component.

    Steering mirror assist for laser pointing

    公开(公告)号:US10228465B2

    公开(公告)日:2019-03-12

    申请号:US15622861

    申请日:2017-06-14

    摘要: An apparatus for improving a pointing capability of an optical pointing system includes a star tracker attitude control system for maintaining an alignment between the optical pointing system and a target, a beam steering mirror controlled by the star tracker attitude control system to direct an optical signal to impinge on the target, a fixed optical assembly configured to direct a portion of the optical signal from the bean steering mirror into a field of view of a star tracker telescope of the star tracker attitude control system, and a detector array for detecting the portion of the optical signal superimposed over a location in a current star scene in the star tracker telescope field of view, where the star tracker attitude control system is configured to operate the beam steering mirror to maintain the optical signal on the target by maintaining the superimposed signal on the location in the star scene.

    Frequency multiplexed radio frequency identification

    公开(公告)号:US10121030B1

    公开(公告)日:2018-11-06

    申请号:US15635704

    申请日:2017-06-28

    IPC分类号: G06K7/10

    摘要: A radio frequency identification (RFID) system for frequency multiplexing includes, in one exemplary embodiment, and RFID interrogator configured for generating an RFID signal, wherein a channel frequency of the RFID signal changes over time; a first narrow band antenna, characterized by a first passband, the first passband corresponding to a first range of frequencies; a second narrow band antenna, characterized by a second passband, the second passband corresponding to a second range of frequencies, wherein the second range of frequencies differs from the first range of frequencies, whereby the second passband differs from the first passband; and first and second feed lines configured for feeding the RFID signal to each of the first and second narrow band antennas, respectively. Other embodiments include systems and methods including similar and different RFID components and aspects for frequency multiplexing.