公开(公告)号：US08665149B2

公开(公告)日：2014-03-04

申请号：US13106300

申请日：2011-05-12

Applicant: In One Joo ,  Sang Uk Lee

Inventor： In One Joo ,  Sang Uk Lee

IPC: G01S19/24 ,  G01S19/29 ,  G01S19/30

CPC classification number: G01S19/24 ,  G01S19/235 ,  G01S19/29 ,  G01S19/30

Abstract: An apparatus and method for processing a navigation signal are provided. When a navigation signal is received and processed, a search range associated with signal processing may be reduced by directly computing a clock offset of a receiving terminal, and accordingly it is possible to reduce an operation amount associated with the signal processing, and an amount of a power consumed by the receiving terminal. Additionally, due to a reduction in the search range, it is also possible to reduce a time required to acquire a signal.

Abstract translation: 提供了一种用于处理导航信号的装置和方法。 当接收和处理导航信号时，可以通过直接计算接收终端的时钟偏移来减少与信号处理相关联的搜索范围，因此可以减少与信号处理相关联的操作量， 由接收终端消耗的功率。 另外，由于搜索范围的减少，也可以减少获取信号所需的时间。

公开(公告)号：US20110241937A1

公开(公告)日：2011-10-06

申请号：US13077278

申请日：2011-03-31

Applicant: Seung Hyun CHOI ,  Jae Hyun Kim ,  In One Joo ,  Cheon Sig Sin ,  Sang Uk Lee

Inventor： Seung Hyun CHOI ,  Jae Hyun Kim ,  In One Joo ,  Cheon Sig Sin ,  Sang Uk Lee

IPC: G01S19/30

CPC classification number: G01S19/29 ,  G01S19/30

Abstract: An apparatus for signal acquisition of a Global Navigation Satellite System (GNSS) receiver may downsample digitalized satellite signals based on a code resolution, correlate the downsampled satellite signals and oversampled pseudo-random noise (PRN) codes using a block unit based on a size of a matching filter, and may perform FFT of a value output as a correlation result by employing, as M points, a number of blocks used for the matching filter. Also, the signal acquisition apparatus may estimate a coarse Doppler and a code phase of the satellite signals by comparing a power value, calculated based on the M-point fast Fourier transformed value, with a threshold value, and may estimate a fine Doppler using zero-padding based FFT when the satellite signals are successfully acquired.

Abstract translation: 用于信号采集全球导航卫星系统（GNSS）接收机的装置可以基于码分辨率对数字化的卫星信号进行采样，将下采样的卫星信号和过采样的伪随机噪声（PRN）码相互关联，使用块单位， 匹配滤波器，并且可以通过使用用于匹配滤波器的块的数量作为M个点来执行值输出的FFT作为相关结果。 此外，信号获取装置可以通过将基于M点快速傅立叶变换值计算的功率值与阈值进行比较来估计卫星信号的粗略多普勒和码相位，并且可以使用零估计精细多普勒 当成功获取卫星信号时基于FFT的FFT。

公开(公告)号：US20100066600A1

公开(公告)日：2010-03-18

申请号：US12447812

申请日：2007-10-31

Applicant: Jeom Hun Lee ,  Sang Uk Lee ,  In One Joo ,  Tae Hee Kim ,  Jae Hoon Kim

Inventor： Jeom Hun Lee ,  Sang Uk Lee ,  In One Joo ,  Tae Hee Kim ,  Jae Hoon Kim

IPC: G01S19/24

CPC classification number: G01S3/38 ,  G01S5/0252 ,  G01S19/53

Abstract: A mobile apparatus for tracking a satellite, includes: a mobile unit; a GPS receiving unit mounted on the mobile unit that generates position coordinates of the mobile unit; a level meter mounted on the mobile unit that adjusts the mobile unit in horizontal and obtains a tilt angle of the mobile unit; an antenna unit mounted on the mobile unit and being adjusted to the true north direction according to the position coordinates. Further, the mobile apparatus for tracking a satellite includes position tracking control unit mounted on the mobile unit that temporarily stops the mobile unit when tracking a position of the satellite, adjusts the mobile unit in horizontal by the level meter and aligns the position coordinates and the tile angles to correct current position information of the mobile unit.

Abstract translation: 一种用于跟踪卫星的移动装置，包括：移动单元; 安装在移动单元上的GPS接收单元，其生成移动单元的位置坐标; 安装在移动单元上的水平仪，其将水平移动单元调整并获得移动单元的倾斜角; 安装在移动单元上并根据位置坐标调整到真北方向的天线单元。 此外，用于跟踪卫星的移动装置包括安装在移动单元上的位置跟踪控制单元，其在跟踪卫星的位置时临时停止移动单元，通过水位计调整移动单元的水平度，并将位置坐标和 瓦片角度以校正移动单元的当前位置信息。