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    RADAR TRACKING DEVICE AND METHOD THEREOF
    1.
    发明申请
    RADAR TRACKING DEVICE AND METHOD THEREOF 失效
    雷达跟踪装置及其方法

    公开(公告)号：US20100103026A1

    公开(公告)日：2010-04-29

    申请号：US12443419

    申请日：2007-06-15

    申请人： Byung-Doo Kim ,  Seong-Yun Cho ,  Young-Su Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    发明人： Byung-Doo Kim ,  Seong-Yun Cho ,  Young-Su Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    IPC分类号： G01S13/02

    CPC分类号： G01S13/723

    摘要： A radar tracking apparatus and method are provided. The radar tracking apparatus includes an α-β tracking filter, wherein the α-β tracking filter includes: a tracking index unit calculating a tracking index for obtaining α and β filter gains of an α-β tracking filter, based on changes in the measurement error covariance of a radar-measured value that occur when the measured value of target is converted from a polar coordinate system to a rectangular coordinate system; and a filter gain update unit calculating the variations of α and β filter gains, based on the partial differential coefficient of the changing rate of the α and β filter gains with respect to the changing rate of the tracking index and the variations of the tracking index, and updating the α and β filter gains.

    摘要翻译： 提供了雷达跟踪装置和方法。 该雷达跟踪装置包括一个α- 跟踪过滤器，其中α-＆bgr; 跟踪滤波器包括：跟踪索引单元计算用于获得α和＆bgr的跟踪索引; 过滤器的增益α＆bgr; 跟踪滤波器，基于当目标的测量值从极坐标系转换为直角坐标系时发生的雷达测量值的测量误差协方差的变化; 以及滤波器增益更新单元，其计算α和＆bgr的变化; 基于α和＆bgr变化率的偏微分系数的滤波器增益; 相对于跟踪指标的变化率和跟踪指标的变化，滤波器增益，更新α和＆bgr; 过滤器增益。

    Radar tracking device and method thereof
    2.
    发明授权
    Radar tracking device and method thereof 失效
    雷达跟踪装置及其方法

    公开(公告)号：US07986262B2

    公开(公告)日：2011-07-26

    申请号：US12443419

    申请日：2007-06-15

    申请人： Byung-Doo Kim ,  Seong-Yun Cho ,  Young-Su Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    发明人： Byung-Doo Kim ,  Seong-Yun Cho ,  Young-Su Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    IPC分类号： G01S13/00

    CPC分类号： G01S13/723

    摘要： A radar tracking apparatus and method are provided. The radar tracking apparatus includes an α-β tracking filter, wherein the α-β tracking filter includes: a tracking index unit calculating a tracking index for obtaining α and β filter gains of an α-β tracking filter, based on changes in the measurement error covariance of a radar-measured value that occur when the measured value of target is converted from a polar coordinate system to a rectangular coordinate system; and a filter gain update unit calculating the variations of α and β filter gains, based on the partial differential coefficient of the changing rate of the α and β filter gains with respect to the changing rate of the tracking index and the variations of the tracking index, and updating the α and β filter gains.

    摘要翻译： 提供了雷达跟踪装置和方法。 该雷达跟踪装置包括一个α- 跟踪过滤器，其中α-＆bgr; 跟踪滤波器包括：跟踪索引单元计算用于获得α和＆bgr的跟踪索引; 过滤器的增益α＆bgr; 跟踪滤波器，基于当目标的测量值从极坐标系转换为直角坐标系时发生的雷达测量值的测量误差协方差的变化; 以及滤波器增益更新单元，其计算α和＆bgr的变化; 基于α和＆bgr变化率的偏微分系数的滤波器增益; 相对于跟踪指标的变化率和跟踪指标的变化，滤波器增益，更新α和＆bgr; 过滤器增益。

    APPARATUS FOR ACQUIRING REFINE CARRIER FREQUENCY BY OPTIMIZING SEARCH AREAS AND METHOD USING THE SAME
    4.
    发明申请
    APPARATUS FOR ACQUIRING REFINE CARRIER FREQUENCY BY OPTIMIZING SEARCH AREAS AND METHOD USING THE SAME 审中-公开
    通过优化搜索区域获取精简载波频率的方法和使用该方法的方法

    公开(公告)号：US20100040115A1

    公开(公告)日：2010-02-18

    申请号：US12514807

    申请日：2007-11-14

    申请人： Young-Su Cho ,  Byung-Doo Kim ,  Seong-Yun Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    发明人： Young-Su Cho ,  Byung-Doo Kim ,  Seong-Yun Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    IPC分类号： H04B1/00

    CPC分类号： H04L27/0014 ,  G01S19/29 ,  G01S19/37 ,  H04L2027/0046 ,  H04L2027/0065 ,  H04L2027/0067

    摘要： A method and apparatus for acquiring a refined carrier frequency by optimizing search areas are provided. The apparatus for acquiring a refined carrier frequency by optimizing search areas includes: a refined signal generation unit using a coarse carrier frequency and a coarse code phase extracted from a digitized signal and obtaining a refined carrier frequency approximated to the carrier frequency of an original signal from which the digitized signal is obtained by conversion; and a refined carrier frequency searching unit setting and providing a search area in which the refined signal acquisition unit can obtain the refined carrier frequency based on the coarse carrier frequency. According to the method and apparatus, as a result of the searching method reducing a search time, acquisition of a refined carrier frequency as well as fast acquisition of a signal is enabled, thereby allowing a precise initial value to be provided to a signal tracking unit.

    摘要翻译： 提供一种通过优化搜索区域来获取精细载波频率的方法和装置。 通过优化搜索区域来获取精细载波频率的装置包括：使用从数字化信号提取的粗载波频率和粗码相位的精细信号生成单元，并获得近似于原始信号的载波频率的精细载波频率 通过转换获得数字化信号; 以及精细载波频率搜索单元，其设置并提供精确信号获取单元可以基于粗略载波频率获得精细载波频率的搜索区域。 根据该方法和装置，通过搜索方法减少搜索时间的结果，可以获得精确的载波频率以及快速获取信号，从而允许精确的初始值提供给信号跟踪单元 。

    INDOOR WIRELESS POSITIONING SYSTEM AND METHOD
    6.
    发明申请
    INDOOR WIRELESS POSITIONING SYSTEM AND METHOD 审中-公开
    室内无线定位系统及方法

    公开(公告)号：US20100039929A1

    公开(公告)日：2010-02-18

    申请号：US12517575

    申请日：2007-10-29

    申请人： Seong-Yun Cho ,  Byung-Doo Kim ,  Young-Su Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    发明人： Seong-Yun Cho ,  Byung-Doo Kim ,  Young-Su Cho ,  Wan-Sik Choi ,  Jong-Hyun Park

    IPC分类号： H04L12/28 ,  H04L12/26 ,  G06F11/07

    CPC分类号： G01S1/68 ,  G01S5/0252

    摘要： Provided is an indoor wireless positioning system and method including: a signal receiving unit receiving first signals from wireless communication access points and measuring strengths of the received first signals and a position estimating unit estimating a current position by comparing the strengths of the first signals measured by the signal receiving unit with a table recording strengths of second signals predicted by a simulation for indoor space the system is currently positioned. Accordingly, it is possible to rapidly and accurately create a fingerprint database and calculate position information on the terminal in the terminal or the server on the basis of the database information.

    摘要翻译： 提供一种室内无线定位系统和方法，包括：信号接收单元，从无线通信接入点接收第一信号并测量接收到的第一信号的强度;以及位置估计单元，通过比较由第一信号测量的第一信号的强度， 所述信号接收单元具有记录所述系统当前所在的用于室内空间的模拟预测的第二信号的强度的表格。 因此，可以快速准确地创建指纹数据库，并且基于数据库信息在终端或服务器中的终端上计算位置信息。

    Apparatus and Method For Estimating Virtual Axis Magnetic Compass Data to Compensate the Tilt Error of Biaxial Magnetic Compass, and Apparatus For Calculating Azimuth Based on the Same
    7.
    发明申请
    Apparatus and Method For Estimating Virtual Axis Magnetic Compass Data to Compensate the Tilt Error of Biaxial Magnetic Compass, and Apparatus For Calculating Azimuth Based on the Same 审中-公开
    用于估计虚拟轴磁罗盘数据以补偿双轴磁罗盘的倾斜误差的装置和方法，以及用于计算方位角的装置

    公开(公告)号：US20080319708A1

    公开(公告)日：2008-12-25

    申请号：US12093092

    申请日：2005-12-21

    申请人： Seong-Yun Cho

    发明人： Seong-Yun Cho

    IPC分类号： G01C9/00

    CPC分类号： G01C17/38

    摘要： Provided is an apparatus for estimating virtual axis geomagnetic data using a 2-axis geomagnetic sensor and an inclinometer, including a geomagnetic data normalizing unit for normalizing 2-axis geomagnetic data measured by the 2-axis geomagnetic sensor, a tilt angle calculator for calculating a tilt angle of the 2-axis geomagnetic sensor by using tilt information measured by the inclinometer, and a virtual axis geomagnetic data estimator for determining a magnitude of virtual geomagnetic data with respect to a virtual axis by using the normalized 2-axis geomagnetic data, and determining a sign of the virtual geomagnetic data based on the normalized 2-axis geomagnetic data, the calculated tilt angle and a dip angle to thereby estimate the virtual geomagnetic data.

    摘要翻译： 提供了一种使用2轴地磁传感器和倾斜计估计虚拟轴地磁数据的装置，包括用于归一化由2轴地磁传感器测量的2轴地磁数据的地磁数据归一化单元，用于计算 通过使用由倾斜仪测量的倾斜信息，所述2轴地磁传感器的倾斜角度以及用于通过使用归一化的2轴地磁数据来确定相对于虚拟轴线的虚拟地磁数据的大小的虚拟轴地磁数据估计器，以及 基于归一化的2轴地磁数据，所计算的倾斜角和倾角来确定虚拟地磁数据的符号，从而估计虚拟地磁数据。