公开(公告)号：US12117539B2

公开(公告)日：2024-10-15

申请号：US17632088

申请日：2019-08-01

申请人： The Regents of the University of Colorado

发明人： Rong Yang ,  Yu Morton

IPC分类号： G01S19/37 ,  G01S19/29 ,  G01S19/30 ,  G01S19/32

CPC分类号： G01S19/37 ,  G01S19/29 ,  G01S19/30 ,  G01S19/32

摘要： Various embodiments of the present technology generally relate to multi-frequency satellite navigation receiver technology. More specifically, some embodiments relate to an inter-frequency signal aiding technique for multi-frequency signal tracking in a multi-frequency receiver. The present technology enables a satellite navigation receiver (such as GPS) to continue operation, or to have improved performance, in environments where signals on one or more frequency bands experience fading. Some embodiments can estimate parameters of signal channels that experience fading based on measurements obtained from all or other less compromised frequency bands in linear operation by the receiver. Some embodiments can optimally estimate carrier parameters of navigation signals with consideration of relative measurement qualities. These parameters are used to construct the local reference signals, maintain lock on the fading signals, and obtain accurate positioning solutions and remote sensing observations.

公开(公告)号：US12117538B2

公开(公告)日：2024-10-15

申请号：US17274519

申请日：2019-09-09

申请人： Sony Semiconductor Solutions Corporation

发明人： Ryoto Yoshita ,  Takafumi Takatsuka

IPC分类号： G01S19/30 ,  G01S19/37 ,  H01L27/146

CPC分类号： G01S19/30 ,  G01S19/37 ,  H01L27/1461 ,  H01L27/14614 ,  H01L27/1464 ,  H01L27/14643

摘要： A solid-state imaging device according to an embodiment of the present disclosure includes a light receiving surface, and two or more pixels opposed to the light receiving surface. Each of the pixels includes a photoelectric conversion section that performs photoelectric conversion on light entering via the light receiving surface, a first charge holding section that holds a charge transferred from the photoelectric conversion section, and a second charge holding section disposed at a position where all or a portion thereof overlaps the first charge holding section in a planar layout, and formed to have no electrical continuity to the first charge holding section. Each of the pixels further includes a first transfer transistor that transfers the charge held by the first charge holding section to a floating diffusion, and a second transfer transistor that transfers a charge held by the second charge holding section to the floating diffusion.

公开(公告)号：US20240201396A1

公开(公告)日：2024-06-20

申请号：US18402630

申请日：2024-01-02

申请人： oneNav, Inc.

发明人： Paul A. Conflitti ,  Mark Moeglein ,  Paul McBurney ,  Gregory Turetzky ,  Norman Krasner ,  Anthony Tsangaropoulos

IPC分类号： G01S19/37 ,  G01S19/30 ,  G01S19/36 ,  H04B1/709

CPC分类号： G01S19/37 ,  G01S19/30 ,  G01S19/36 ,  H04B1/709 ,  H04B2201/70715

摘要： GNSS receivers and systems within such receivers use improvements to reduce memory usage while providing sufficient processing resources to receive and acquire and track ES band GNSS signals directly (without attempting in one embodiment to receive L1 GNSS signals). Other aspects are also described.

公开(公告)号：US11960010B2

公开(公告)日：2024-04-16

申请号：US17252045

申请日：2019-06-13

申请人： Panasonic Intellectual Property Management Co., Ltd. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Yasuhisa Yamazaki ,  Suguru Oguchi ,  Yoshihiro Iriyama ,  Mamoru Kanayama

IPC分类号： G01S19/11 ,  G01S19/25 ,  G01S19/28 ,  G01S19/30 ,  G01S19/43

CPC分类号： G01S19/11 ,  G01S19/252 ,  G01S19/28 ,  G01S19/30 ,  G01S19/43

摘要： A positioning terminal is provided and identifies, as appropriate, a satellite to be excluded, thereby improving positioning accuracy. A processor acquires a signal-to-noise ratio (SNR) and an angle of elevation for each satellite. The processor next identifies a satellite for which the SNR is less than a shielding SNR mask as a multipath satellite and selects the satellite to be excluded. The processor next generates positioning terminal positioning data using a positioning signal from satellites other than the satellite to be excluded. The processor next uses reference station positioning data and positioning terminal positioning data of the selected satellite to execute an RTK calculation.

公开(公告)号：US11867822B2

公开(公告)日：2024-01-09

申请号：US17414102

申请日：2019-10-24

申请人： Kongsberg Seatex AS

发明人： David Møller Hagen

IPC分类号： H01Q21/00 ,  G01S19/30 ,  G01S19/21 ,  G01S19/29 ,  H01Q1/52

CPC分类号： G01S19/30 ,  G01S19/21 ,  G01S19/29 ,  H01Q1/523 ,  H01Q21/00

摘要： Antenna assembly comprising the combination of a steerable phased array antenna with omnidirectional sector and a GNSS antenna, and antenna system comprising the antenna assembly.

公开(公告)号：US20230417930A1

公开(公告)日：2023-12-28

申请号：US18243639

申请日：2023-09-07

申请人： oneNav, Inc.

发明人： Paul McBurney ,  Nagaraj Shivaramaiah ,  Norman Krasner ,  Paul A. Conflitti ,  Mark Moeglein

IPC分类号： G01S19/30 ,  G01S19/42 ,  G01S19/46

CPC分类号： G01S19/30 ,  G01S19/428 ,  G01S19/46

摘要： Global navigation satellite systems and methods use L5 GNSS signals to acquire secondary code phases of those signals without using L1 GNSS signals to aid in the acquisition of secondary code phases. Various embodiments are described to perform this acquisition.

公开(公告)号：US20230385371A1

公开(公告)日：2023-11-30

申请号：US18142568

申请日：2023-05-02

申请人： MEDIATEK INC.

发明人： Kun-Tso Chen

IPC分类号： G06F17/15 ,  G01S19/30

CPC分类号： G06F17/15 ,  G01S19/30

摘要： A correlation computation method includes: obtaining a plurality of code sequences; performing, by a transformation circuit, a bit-wise combination with transformation upon the plurality of code sequences to generate a composite code sequence; and generating a correlation value between a data sequence and the composite code sequence.

公开(公告)号：US20230231588A1

公开(公告)日：2023-07-20

申请号：US18041711

申请日：2021-07-09

申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

发明人： Qinghua ZENG ,  Wenqi QIU ,  Jianye LIU ,  Rui XU ,  Yongrong SUN ,  Rongbing LI ,  Pin LYU ,  Wei ZHAO ,  Zhi XIONG ,  Jizhou LAI

IPC分类号： H04B1/10 ,  G01S19/22 ,  G01S19/25 ,  G01S19/30

CPC分类号： H04B1/1081 ,  G01S19/22 ,  G01S19/256 ,  G01S19/30

摘要： A multipath suppression method based on a steepest descent method includes stripping, according to carrier Doppler shift information fed back by a phase-locked loop, a carrier from an intermediate-frequency signal input into a tracking loop; constructing, on the basis of the autocorrelation characteristics of a ranging code, a quadratic cost function related to a measurement deviation of the ranging code, the cost function being not affected by a multipath signal; and finally, designing a new tracking loop of the ranging code according to the quadratic cost function and the principle of the steepest descent method, such that the loop has a multipath suppression function without increasing the computational burden. Compared with a narrow-distance correlation method, the current method reduces computing resources by ⅓, the design and adjustment of parameters are simple and feasible, a multipath suppression effect is superior, and a high engineering application value is obtained.

公开(公告)号：US11681051B2

公开(公告)日：2023-06-20

申请号：US17276311

申请日：2019-06-05

申请人： Sony Semiconductor Solutions Corporation

发明人： Kazukuni Takanohashi ,  Tetsuhiro Futami ,  Katsuyuki Tanaka ,  Hideki Awata ,  Shinji Inoue ,  Tsunetomo Nakazato

IPC分类号： G01S19/24 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7073

CPC分类号： G01S19/243 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7073

摘要： The presence or absence of a preamble is detected with accuracy in a reception apparatus that receives a signal including a preamble.
A reception section receives a subframe including a subframe preamble and a message and a frame including a frame preamble. A processing section performs a process of detecting the presence or absence of the subframe preamble according to whether or not a given relation holds between a reception timing of the subframe preamble and a reception timing of the frame preamble. A message decoding section extracts the message from the subframe and decodes the message in a case where the presence of the subframe preamble is detected.

公开(公告)号：US20190199394A1

公开(公告)日：2019-06-27

申请号：US16331491

申请日：2017-09-08

申请人： Airbus Defence and Space Limited

发明人： Andrew RICHARDSON ,  Michael TURNER ,  David De-Castro GALAN ,  Michael BATISITE

IPC分类号： H04B1/709 ,  H04B1/7075

CPC分类号： H04B1/709 ,  G01S19/30 ,  H04B1/7075

摘要： Apparatus and methods are disclosed for obtaining a correlation function between a Direct Sequence Spread Spectrum (DSSS) signal and a spreading code. A plurality of code replica samples are stored in memory at a relatively low sampling rate compared to the sampling rate at which the input DSSS signal is sampled. A correlation operator is obtained by reproducing the stored code replica samples, in order to obtain a correlation operator with the same number of samples as the block of DSSS signal samples currently being processed. For example, when the sampling rate of the DSSS signal is equal to an integer N multiple of the sampling rate used for the code replica samples, the stored replica samples are reproduced N times to obtain the correlation operator. The correlation operator is then multiplied by the block of DSSS signal samples and integrated to obtain a correlation function.