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    • 1. 发明授权
    • Coordinate-free measurement-domain navigation and guidance using location-dependent radio signal measurements
    • 无需坐标的测量域导航和使用位置相关无线电信号测量的指导
    • US09046591B1
    • 2015-06-02
    • US13282683
    • 2011-10-27
    • Chun YangDi Qiu
    • Chun YangDi Qiu
    • G01S3/02G01S3/00G01S5/02G01S1/08
    • G01S3/00G01C21/005G01S3/02G01S5/0252G01S5/0284
    • A system and associated methods for coordinate-free measurement-domain navigation and guidance utilizing a plurality of radio signals of opportunity, without knowing the coordinates of transmitters of said radio signals in a reference system that steers a user from an initial location to a destination without calculating coordinates in said reference system. In one embodiment, radio signal parameters comprise received signal strength indications, differential times of arrival, and sector angles from a user to at least a pair of radio sources and a combination thereof that are used for coarse navigation and guidance toward the vicinity of said destination. In another embodiment, radio signal parameters comprise temporal characteristics of radio signals, propagation channel impulse responses, radio signal power spectra, propagation channel transfer functions, and a combination thereof that are used for vernier navigation and guidance within the vicinity of said destination.
    • 一种用于无坐标测量域导航和引导的系统和相关方法,其利用机会的多个无线电信号,而不知道参考系统中的所述无线电信号的发射机的坐标,其将用户从初始位置转向目的地,而不是 计算所述参考系统中的坐标。 在一个实施例中,无线电信号参数包括接收信号强度指示,差分到达时间和从用户到至少一对无线电源的扇区角度及其组合,用于粗略导航和向所述目的地附近的引导 。 在另一个实施例中,无线电信号参数包括用于在所述目的地附近的游标导航和引导的无线电信号,传播信道脉冲响应,无线电信号功率谱,传播信道传递函数及其组合的时间特征。