Signal processing system for satellite positioning signals
    1.
    发明授权
    Signal processing system for satellite positioning signals 有权
    卫星定位信号信号处理系统

    公开(公告)号:US08138972B2

    公开(公告)日:2012-03-20

    申请号:US10570833

    申请日:2004-09-02

    IPC分类号: G01S19/24

    摘要: A signal processing system for processing satellite positioning signals is described. The system comprises at least one processor and a signal processor operating under a number of operational modes. The signal processor includes at least one of a signal processing subsystem, a fast Fourier transform (FFT) subsystem, and a memory subsystem that are each dynamically and independently configurable in response to the operational modes. Further, the system includes a controller that couples to control transfer of data among the signal processing subsystem and the FFT subsystem via the memory subsystem. Configurability of the memory subsystem includes configuring the memory subsystem into regions according to the operational modes where each region is accessible in one of a number of manners according to the operational modes.

    摘要翻译: 描述了一种用于处理卫星定位信号的信号处理系统。 该系统包括在多种操作模式下操作的至少一个处理器和信号处理器。 信号处理器包括信号处理子系统,快速傅立叶变换(FFT)子系统和存储器子系统中的至少一个,每个动态和独立地可以响应于操作模式配置。 此外,该系统包括控制器,其经由存储器子系统耦合以控制信号处理子系统和FFT子系统之间的数据传送。 存储器子系统的可配置性包括根据操作模式将存储器子系统配置到区域中,根据操作模式,可以以多种方式之一访问每个区域。

    Signal processing system for satellite positioning signals
    2.
    发明授权
    Signal processing system for satellite positioning signals 失效
    卫星定位信号信号处理系统

    公开(公告)号:US08593345B2

    公开(公告)日:2013-11-26

    申请号:US13400390

    申请日:2012-02-20

    IPC分类号: G01S19/32

    摘要: A signal processing system for processing satellite positioning signals is described. The system comprises at least one processor and a signal processor operating under a number of operational modes. The signal processor includes at least one of a signal processing subsystem, a fast Fourier transform (FFT) subsystem, and a memory subsystem that are each dynamically and independently configurable in response to the operational modes. Further, the system includes a controller that couples to control transfer of data among the signal processing subsystem and the FFT subsystem via the memory subsystem. Configurability of the memory subsystem includes configuring the memory subsystem into regions according to the operational modes where each region is accessible in one of a number of manners according to the operational modes.

    摘要翻译: 描述了一种用于处理卫星定位信号的信号处理系统。 该系统包括在多种操作模式下操作的至少一个处理器和信号处理器。 信号处理器包括信号处理子系统,快速傅立叶变换(FFT)子系统和存储器子系统中的至少一个,每个动态和独立地可以响应于操作模式配置。 此外,该系统包括控制器,其经由存储器子系统耦合以控制信号处理子系统和FFT子系统之间的数据传送。 存储器子系统的可配置性包括根据操作模式将存储器子系统配置到区域中,根据操作模式,可以以多种方式之一访问每个区域。

    SIGNAL PROCESSING SYSTEM FOR SATELLITE POSITIONING SIGNALS
    3.
    发明申请
    SIGNAL PROCESSING SYSTEM FOR SATELLITE POSITIONING SIGNALS 失效
    用于卫星定位信号的信号处理系统

    公开(公告)号:US20120313817A1

    公开(公告)日:2012-12-13

    申请号:US13400390

    申请日:2012-02-20

    IPC分类号: G01S19/32

    摘要: A signal processing system for processing satellite positioning signals is described. The system comprises at least one processor and a signal processor operating under a number of operational modes. The signal processor includes at least one of a signal processing subsystem, a fast Fourier transform (FFT) subsystem, and a memory subsystem that are each dynamically and independently configurable in response to the operational modes. Further, the system includes a controller that couples to control transfer of data among the signal processing subsystem and the FFT subsystem via the memory subsystem. Configurability of the memory subsystem includes configuring the memory subsystem into regions according to the operational modes where each region is accessible in one of a number of manners according to the operational modes.

    摘要翻译: 描述了一种用于处理卫星定位信号的信号处理系统。 该系统包括在多种操作模式下操作的至少一个处理器和信号处理器。 信号处理器包括信号处理子系统,快速傅立叶变换(FFT)子系统和存储器子系统中的至少一个,每个动态和独立地可以响应于操作模式配置。 此外,该系统包括控制器,其经由存储器子系统耦合以控制信号处理子系统和FFT子系统之间的数据传送。 存储器子系统的可配置性包括根据操作模式将存储器子系统配置到区域中,根据操作模式,可以以多种方式之一访问每个区域。

    Signal Processing System for Satellite Positioning Signals
    4.
    发明申请
    Signal Processing System for Satellite Positioning Signals 有权
    卫星定位信号信号处理系统

    公开(公告)号:US20110102258A1

    公开(公告)日:2011-05-05

    申请号:US10570833

    申请日:2004-09-02

    IPC分类号: G01S19/10 G01S19/13 G01S19/24

    摘要: A signal processing system for processing satellite positioning signals is described. The system comprises at least one processor and a signal processor operating under a number of operational modes. The signal processor includes at last one of a signal processing subsystem, a fast Fourier transform (FFT) subsystem, and a memory subsystem that are each dynamically and independently configurable in response to the operational modes. Further, the system includes a controller that couples to control transfer of data among the signal processing subsystem and the FFT subsystem via the memory subsystem. Configurability of the memory subsystem includes configuring the memory subsystem into regions according to the operational modes where each region is accessible in one of a number of manners according to the operational modes.

    摘要翻译: 描述了一种用于处理卫星定位信号的信号处理系统。 该系统包括在多种操作模式下操作的至少一个处理器和信号处理器。 信号处理器包括信号处理子系统,快速傅里叶变换(FFT)子系统和存储器子系统中的最后一个,每个动态和独立可配置以响应于操作模式。 此外,该系统包括控制器,其经由存储器子系统耦合以控制信号处理子系统和FFT子系统之间的数据传送。 存储器子系统的可配置性包括根据操作模式将存储器子系统配置到区域中,根据操作模式,可以以多种方式之一访问每个区域。

    Cancellation system and method for a wireless positioning system
    9.
    发明授权
    Cancellation system and method for a wireless positioning system 有权
    无线定位系统的取消系统和方法

    公开(公告)号:US07983666B2

    公开(公告)日:2011-07-19

    申请号:US10870668

    申请日:2004-06-16

    CPC分类号: H04B1/71075 G01S19/21

    摘要: A cancellation system that delays the received signals and cancels less than all the received signals from the delayed version of the received signals and a demodulator and despreader unit produces a demodulated and de-spreader and remodulator unit produces a remodulated and respread signal from the demodulated and despread signal with a combiner that produces a combined signal from the delayed version of the received signals and the remodulated and respread signal to identify a low power signal.

    摘要翻译: 一种抵消系统,其延迟所接收的信号并从所接收的信号的延迟版本中取消小于所有接收的信号,并且解调器和解扩器单元产生解调和解扩展和再调制器单元从解调和解调器单元产生重调制和重新发送的信号, 解复用信号与合成器产生来自接收信号的延迟版本的组合信号和重新调制和重新发送的信号以识别低功率信号。

    Signal detector employing a doppler phase correction system
    10.
    发明授权
    Signal detector employing a doppler phase correction system 失效
    信号检测器采用多普勒相位校正系统

    公开(公告)号:US06931055B1

    公开(公告)日:2005-08-16

    申请号:US09551276

    申请日:2000-04-18

    IPC分类号: G01S1/00 H04B1/707

    CPC分类号: G01S19/29 G01S19/37 H04B1/707

    摘要: A spread spectrum detector employs a Doppler phase correction system that improves correlation of pseudo-noise (PN) codes to a received spread spectrum signal by combining phase shifts to correlation values, using a fast fourier transform (FFT), that compensate for the Doppler shift error that is inherent in the signal and that is imposed upon the signal by movement between the signal source and receiver. In architecture, the Doppler phase correction system includes a receiver to receive a spread spectrum modulated signal having the Doppler shift error. A multiplier produces a plurality of complex first correlation values based upon the signal and a code. A phase shifter generates a plurality of complex second correlation values respectively from the first correlation values using an FFT. The second correlation values are phase shifted by respective different amounts from corresponding first correlation values, so that the second correlation values exhibit less of the Doppler shift error than the first correlation values. A combiner, such as an integrator, combines, or integrates, the second correlation values to derive a third correlation value that indicates a degree of correspondence of the a code with the signal.

    摘要翻译: 扩展频谱检测器采用多普勒相位校正系统,其通过使用补偿多普勒频移的快速傅立叶变换(FFT)将相移组合到相关值来改善伪噪声(PN)码与接收的扩频信号的相关性 信号中固有的并且通过信号源和接收器之间的移动而施加在信号上的误差。 在架构中,多普勒相位校正系统包括用于接收具有多普勒频移误差的扩频调制信号的接收机。 乘法器基于信号和代码产生多个复数的第一相关值。 移相器使用FFT从第一相关值分别生成多个复数第二相关值。 第二相关值与相应的第一相关值相移相应的不同量,使得第二相关值表现出比第一相关值少的多普勒偏移误差。 诸如积分器的组合器组合或积分第二相关值以导出指示代码与信号的对应程度的第三相关值。