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    • 33. 发明授权
    • Method and system for integrated glonass and GPS processing
    • 集成玻璃和GPS加工的方法和系统
    • US08493268B2
    • 2013-07-23
    • US13372001
    • 2012-02-13
    • Andreas WarloeCharles NormanCharles Abraham
    • Andreas WarloeCharles NormanCharles Abraham
    • G01S19/35
    • G01S19/33G01S19/36G01S19/37G01S19/425
    • An integrated global navigation satellite system (GNSS) receiver may be operable to decompose GNSS IF signals associated with GPS satellites and/or GLONASS satellites into a constituent narrowband GPS data stream and/or a plurality of constituent narrowband GLONASS data streams utilizing, for example, a GPS IF tuner and/or one or more GLONASS IF tuners. The narrowband GLONASS data streams and/or the narrowband GPS data stream may be processed at reduced sampling rates utilizing a shared sample memory in the integrated GNSS receiver. The narrowband GLONASS data streams and/or the narrowband GPS data stream may be stored in allocated sections of the shared sample memory. The stored narrowband GLONASS data streams and/or the stored narrowband GPS data stream may be processed using a correlation such as a fast Fourier transform (FFT) correlation.
    • 集成的全球导航卫星系统(GNSS)接收机可以用于将与GPS卫星和/或GLONASS卫星相关联的GNSS IF信号分解为组成窄带GPS数据流和/或多个构成窄带GLONASS数据流,例如, GPS IF调谐器和/或一个或多个GLONASS IF调谐器。 窄带GLONASS数据流和/或窄带GPS数据流可以利用集成GNSS接收机中的共享采样存储器以降低的采样率来处理。 窄带GLONASS数据流和/或窄带GPS数据流可以存储在共享采样存储器的分配部分中。 存储的窄带GLONASS数据流和/或存储的窄带GPS数据流可以使用诸如快速傅里叶变换(FFT)相关的相关性来处理。
    • 36. 发明授权
    • Method for estimating hidden channel parameters of a GNSS navigation signal received in a multipath environment
    • 用于估计在多路径环境中接收的GNSS导航信号的隐藏信道参数的方法
    • US08471764B2
    • 2013-06-25
    • US12383507
    • 2009-03-25
    • Bernhard KrachMichael LentmaierPatrick Robertson
    • Bernhard KrachMichael LentmaierPatrick Robertson
    • G01S19/22G01C21/30G01C21/32H04B1/00
    • G01S19/37G01S19/22
    • A method for estimating hidden channel parameters of a GNSS navigation signal received in a multipath environment includes a sequential Bayesian estimation. A movement model forms the basis of the estimation and is designed especially for dynamic channel scenarios and takes into account the speeds of change and the variable life cycles of the path. The estimator is implemented as a recursive Bayesian filter for a combined determination of positions and suppression of multipaths. The binding of the delay of the direct path is taken into consideration via position and clock parameters. The method is carried out with GNSS satellite navigation receivers, e.g. GPS and Galileo. With the method, multipath error of received GNSS navigation signals is reduced. The multipath channel includes a direct path and Nm-I echo signals and each of these paths may be considered on or off for the estimation.
    • 一种用于估计在多路径环境中接收的GNSS导航信号的隐藏信道参数的方法包括连续贝叶斯估计。 移动模型构成了估计的基础,特别针对动态通道情景设计,并考虑了路径的变化速度和可变生命周期。 估计器被实现为递归贝叶斯滤波器,用于组合确定位置和抑制多径。 通过位置和时钟参数考虑直接路径的延迟的约束。 该方法使用GNSS卫星导航接收机进行,例如。 GPS和伽利略。 利用该方法,减少了接收的GNSS导航信号的多径误差。 多路径通道包括直接路径和Nm-I回波信号,并且这些路径中的每一个可以被认为是开或关用于估计。