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    GNSS RECEIVER
    1.
    发明申请
    GNSS RECEIVER 审中-公开
    GNSS接收机

    公开(公告)号：US20160054450A1

    公开(公告)日：2016-02-25

    申请号：US14827780

    申请日：2015-08-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gary LENNEN

    IPC: G01S19/33

    CPC classification number: G01S19/33 ,  G01S19/46

    Abstract: A method for use with a Global Navigation Satellite System (GNSS) receiver is provided. The method includes obtaining a first system time from a satellite of a first satellite navigation system, obtaining a second system time from a satellite of a second satellite navigation system, calculating a difference between the first system time and the second system time to obtain a number of leap seconds between Coordinated Universal Time (UTC) and the second satellite system.

    Abstract translation: 提供了一种与全球导航卫星系统（GNSS）接收机一起使用的方法。 该方法包括从第一卫星导航系统的卫星获得第一系统时间，从第二卫星导航系统的卫星获得第二系统时间，计算第一系统时间与第二系统时间之间的差以获得数 在协调世界时（UTC）和第二卫星系统之间的闰秒。

    SYSTEM AND METHOD FOR IMPROVED GNSS SENSITIVITY VIA COMBINING ACQUISITION AND TRACK CORRELATION HYPOTHESES
    3.
    发明申请
    SYSTEM AND METHOD FOR IMPROVED GNSS SENSITIVITY VIA COMBINING ACQUISITION AND TRACK CORRELATION HYPOTHESES 审中-公开

    公开(公告)号：US20190120971A1

    公开(公告)日：2019-04-25

    申请号：US15879012

    申请日：2018-01-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gary LENNEN

    IPC: G01S19/29 ,  G01S19/24

    Abstract: An apparatus, a method, a method of manufacturing an apparatus, and a method of constructing an integrated circuit are provided. The apparatus includes a memory and a processor configured to conduct acquisition of K values with N peaks, where K and N are integers; store the K values in the memory; select J of the N peaks and include the J peaks in track, where J is an integer less than or equal to N; combine acquisition and track non-coherent summations (NCSs) of coherent correlations in a metric; and form a measurement unless the metric indicates that the measurement should be abandoned.

    SYSTEM AND METHOD FOR PROVIDING CODE MODIFICATION FOR MULTIPATH IMPROVEMENT IN GNSS RECEIVERS
    4.
    发明申请
    SYSTEM AND METHOD FOR PROVIDING CODE MODIFICATION FOR MULTIPATH IMPROVEMENT IN GNSS RECEIVERS 审中-公开

    公开(公告)号：US20190204452A1

    公开(公告)日：2019-07-04

    申请号：US15938400

    申请日：2018-03-28

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gary LENNEN

    IPC: G01S19/22 ,  G01S19/30

    Abstract: Systems, methods and apparatuses for multipath mitigation in global navigation satellite system (GNSS) receivers are described. One method includes modifying the locally generated code in the GNSS receiver bit by bit in order to reduce offset peaks in the autocorrelation when receiving the satellite generated code signal. Such modified local codes may be pre-computed and stored or otherwise provided during reception. Moreover, the GNSS receiver may select whether or not to use the modified local code or the standard local code based on a selection criteria. Furthermore, multiple modified version of the same local code may be generated and/or stored in order to provide differing performance levels.

    METHOD AND APPARATUS FOR IMPROVING POSITION-VELOCITY SOLUTION IN GNSS RECEIVERS
    5.
    发明申请
    METHOD AND APPARATUS FOR IMPROVING POSITION-VELOCITY SOLUTION IN GNSS RECEIVERS 审中-公开

    公开(公告)号：US20180224555A1

    公开(公告)日：2018-08-09

    申请号：US15585148

    申请日：2017-05-02

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gary LENNEN

    IPC: G01S19/20

    CPC classification number: G01S19/39 ,  G01S19/42 ,  G01S19/52

    Abstract: Embodiments include a method and apparatus for improving a position-velocity solution in GNSS receivers. A receiver of a mobile device includes an antenna that receives one or more signals from one or more satellites, a measurement layer produces range and range rate measurements dependent on the one or more signals, and a storage device stores historic satellite measurement states dependent on the range and range rate measurements. The receiver may further include a Kalman filter logic section may receive the range and range rate measurements, and to smooth computed motion of the mobile device. The storage device may store historic filter states. A filter adjustment logic section may detect a measurement layer error trigger, remove or de-weight errant information associated with the measurement layer error trigger, and cause the filter logic section to update a current filter state by iteratively applying the filter logic section to the historic filter states.

    METHOD AND APPARATUS FOR EFFICIENTLY COMBINING SATELLITE NAVIGATION SIGNALS
    7.
    发明申请
    METHOD AND APPARATUS FOR EFFICIENTLY COMBINING SATELLITE NAVIGATION SIGNALS 有权
    有效地组合卫星导航信号的方法和装置

    公开(公告)号：US20140354472A1

    公开(公告)日：2014-12-04

    申请号：US13891008

    申请日：2013-05-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gary LENNEN

    IPC: G01S19/13

    CPC classification number: G01S19/426 ,  G01S19/30

    Abstract: A satellite signal navigation receiver can reduce channel resource usage and matched filter requirements by producing a single-bit local replica code from the combined incoming signals of each in view satellite. In one embodiment, the E1-B and E1-C signals from a Galileo satellite are received and converted into single-bit digital representations (B and C, respectively). A modified local replica code D is created by modifying (B−C) by replacing all “−2” values with “−1” values, by replacing all “+2” values with “+1” values, and by replacing all zero values such that a sum of the replaced zero values over a predetermined period will approximately equal zero. For instance, the “0” values can be replaced with alternating “−1” and “+1” values. Another modified replica code D* can be created by modifying (B+C) in a similar manner.

    Abstract translation: 卫星信号导航接收机可以通过从视频卫星中的每一个的组合进入信号产生单位本地复制码来减少信道资源使用和匹配的滤波器要求。 在一个实施例中，来自伽利略卫星的E1-B和E1-C信号被接收并转换成单位数字表示（分别为B和C）。 通过使用“-1”值替换所有“-2”值，通过用“+1”值替换所有“+2”值，并通过将全部零值替换为“+”来修改（B-C）来创建修改后的本地副本代码D 使得在预定时间段内替换的零值的总和将近似等于零的值。 例如，可以用“-1”和“+1”值代替“0”值。 可以通过以类似的方式修改（B + C）来创建另一个修改的复制代码D *。

    GNSS RECEIVER PERFORMANCE IMPROVEMENT VIA LONG COHERENT INTEGRATION
    9.
    发明申请
    GNSS RECEIVER PERFORMANCE IMPROVEMENT VIA LONG COHERENT INTEGRATION 审中-公开

    公开(公告)号：US20200348421A1

    公开(公告)日：2020-11-05

    申请号：US16931903

    申请日：2020-07-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gary LENNEN

    IPC: G01S19/37 ,  G01S19/22 ,  G01S19/21

    Abstract: Systems, methods and apparatuses for generating long coherent integrations of received global navigation satellite system (GNSS) signals are described. One method includes generating coherent 1 second I/Q correlations by at least two stages of summation starting with 1 millisecond correlated I/Q signal samples. Intermediate stage coherent I/Q correlations may be modified based on, for example, lack of carrier phase lock and/or the carrier signal-to-noise density (C/N0). Such modifications include phase rotation. Energy/power amplitudes calculated from the coherent 1 second I/Q correlations may be used for improving multipath mitigation, the signal-to-noise ratio (SNR), and other GNSS receiver operations and functions.

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