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    • 3. 发明授权
    • Radio positioning and ranging system and positioning and ranging program
    • 无线电定位和测距系统及定位及测距方案
    • US08823588B2
    • 2014-09-02
    • US12795101
    • 2010-06-07
    • Masafumi AsaiHidenori SekiguchiAkira Fujii
    • Masafumi AsaiHidenori SekiguchiAkira Fujii
    • G01S11/08G01S1/24G01S5/14G01S5/02G01S11/06G01S5/06
    • G01S11/06G01S5/0221G01S5/06G01S5/14G01S11/08
    • A positioning and ranging system includes a transmitter transmits a plurality of impulses; and a receiver receives the impulses; the receiver includes an initial detection unit records a sensing time of a first impulse among a plurality of impulses transmitted by the transmitter; a sensing margin detection unit for detecting a sensing margin being a difference between a field intensity of the first impulse and a reception limit field intensity of the receiver; a correction unit identifies a sensing error differential time based on a given relationship between the sensing margin and the sensing error differential time, and corrects the sensing time detected by the initial detection unit using the identified sensing error differential time; the system measures a distance between the transmitter and the receiver and a position of the transmitter based on a time the transmitter transmits the first impulse and a time the receiver receives the impulse.
    • 定位和测距系统包括发射机发射多个脉冲; 接收器接收脉冲; 所述接收机包括初始检测单元,记录由所述发送器发送的多个脉冲中的第一脉冲的感测时间; 感测余量检测单元,用于检测作为第一脉冲的场强与接收机的接收极限场强之间的差的感测余量; 校正单元基于感测余量和感测误差差分时间之间的给定关系来识别感测误差差分时间,并且使用所识别的感测误差差分时间校正由初始检测单元检测到的感测时间; 该系统基于发射机发射第一脉冲的时间和接收机接收脉冲的时间来测量发射机和接收机之间的距离以及发射机的位置。
    • 5. 发明申请
    • RADIO POSITIONING AND RANGING SYSTEM AND POSITIONING AND RANGING PROGRAM
    • 无线电定位和测距系统及定位和测距程序
    • US20100309053A1
    • 2010-12-09
    • US12795101
    • 2010-06-07
    • Masafumi ASAIHidenori SekiguchiAkira Fujii
    • Masafumi ASAIHidenori SekiguchiAkira Fujii
    • G01S1/24
    • G01S11/06G01S5/0221G01S5/06G01S5/14G01S11/08
    • A positioning and ranging system includes a transmitter transmits a plurality of impulses; and a receiver receives the impulses; the receiver includes an initial detection unit records a sensing time of a first impulse among a plurality of impulses transmitted by the transmitter; a sensing margin detection unit for detecting a sensing margin being a difference between a field intensity of the first impulse and a reception limit field intensity of the receiver; a correction unit identifies a sensing error differential time based on a given relationship between the sensing margin and the sensing error differential time, and corrects the sensing time detected by the initial detection unit using the identified sensing error differential time; the system measures a distance between the transmitter and the receiver and a position of the transmitter based on a time the transmitter transmits the first impulse and a time the receiver receives the impulse.
    • 定位和测距系统包括发射机发射多个脉冲; 接收器接收脉冲; 所述接收机包括初始检测单元,记录由所述发送器发送的多个脉冲中的第一脉冲的感测时间; 感测余量检测单元,用于检测作为第一脉冲的场强与接收机的接收极限场强之间的差的感测余量; 校正单元基于感测余量和感测误差差分时间之间的给定关系识别感测误差差分时间,并且使用所识别的感测误差差分时间校正由初始检测单元检测的感测时间; 该系统基于发射机发射第一脉冲的时间和接收机接收脉冲的时间来测量发射机和接收机之间的距离以及发射机的位置。
    • 10. 发明申请
    • Radio positioning system
    • 无线电定位系统
    • US20090047976A1
    • 2009-02-19
    • US12216150
    • 2008-06-30
    • Akira FujiiHidenori SekiguchiMasafumi Asai
    • Akira FujiiHidenori SekiguchiMasafumi Asai
    • H04Q7/20
    • G01S5/0221G01S5/06G01S5/14H04W64/003
    • A radio positioning system includes a plurality of base stations, each receiving a radio wave from a mobile terminal, and including a first base station whose position coordinates are known and a second base station whose position coordinates are unknown. The system also includes a distance measuring unit that measures a distance between the first and the second base stations based on the exchanging the radio waves; a position-coordinate calculating unit that calculates position coordinates of the second base station based on the measured distances; a determination control unit that determines a time reference station out of the base stations, and controls the time reference station to transmit a time reference pulse; and a distance-measurement control unit that calculates, using the time difference, a time difference between reception times of the wave signal at the base stations, and calculates position coordinates of the mobile terminal based on the time difference.
    • 无线电定位系统包括多个基站,每个基站从移动终端接收无线电波,并且包括其位置坐标已知的第一基站和位置坐标未知的第二基站。 该系统还包括距离测量单元,其基于交换无线电波来测量第一和第二基站之间的距离; 位置坐标计算单元,其基于所测量的距离计算第二基站的位置坐标; 确定控制单元,确定基站之间的时间基准站,并控制时间基准站发送时间基准脉冲; 以及距离测量控制单元,其使用所述时间差计算所述基站处的所述波信号的接收时间之间的时间差,并且基于所述时间差来计算所述移动终端的位置坐标。