OFFSET FREQUENCY HOMODYNE GROUND PENETRATING RADAR
    1.
    发明申请
    OFFSET FREQUENCY HOMODYNE GROUND PENETRATING RADAR 有权
    偏移频率HOMODYNE地面穿透雷达

    公开(公告)号:US20130234879A1

    公开(公告)日:2013-09-12

    申请号:US13797929

    申请日:2013-03-12

    IPC分类号: G01S13/02 G01S13/88

    摘要: Systems and methods involve generating a baseband signal, up-converting the baseband signal to a radar signal frequency, filtering a lower sideband of the up-converted signal, and transmitting the filtered up-converted signal. Systems and methods also involve receiving a return signal, down-converting the return signal using a signal having a frequency offset from the up-converted signal, filtering the upper sideband of the down-converted return signal, and producing a baseband return signal.

    摘要翻译: 系统和方法涉及生成基带信号,将基带信号上变频为雷达信号频率,对上变频信号的下边带进行滤波,以及发送滤波的上变频信号。 系统和方法还包括接收返回信号,使用具有从上变频信号的频率偏移的信号下变频返回信号,对下变频返回信号的上边带进行滤波,并产生基带返回信号。

    Positioning correction system and method for single and multi-channel ground penetrating radar

    公开(公告)号:US07612704B2

    公开(公告)日:2009-11-03

    申请号:US12262140

    申请日:2008-10-30

    IPC分类号: G01S13/88 G01V3/12

    CPC分类号: G01V3/12 G01S13/885

    摘要: A mobile geophysical instrument produces geophysical data sets each associated with a position computed by use of a position sensor. A variable time delay results between a time when data for each geophysical data set is collected and a time when a position associated with each geophysical data set is recorded. A module receives distance transducer data and includes circuitry configured to generate a module signal based on trigger signals from the distance transducer and a calibration value. A data acquisition system (DAS) receives geophysical data sets from the geophysical instrument, positioning data from the positioning sensor, and the module signals. The DAS generates a DAS timestamp in response to each module signal and associates the DAS timestamp with each geophysical data set and a position associated with the geophysical data set, so as to substantially eliminate the variable time delay.

    Positioning correction system and method for single and multi-channel ground penetrating radar
    3.
    发明申请
    Positioning correction system and method for single and multi-channel ground penetrating radar 失效
    单通道和多通道地面穿透雷达定位校正系统及方法

    公开(公告)号:US20090109081A1

    公开(公告)日:2009-04-30

    申请号:US12262140

    申请日:2008-10-30

    IPC分类号: G01S13/00

    CPC分类号: G01V3/12 G01S13/885

    摘要: A mobile geophysical instrument produces geophysical data sets each associated with a position computed by use of a position sensor. A variable time delay results between a time when data for each geophysical data set is collected and a time when a position associated with each geophysical data set is recorded. A module receives distance transducer data and includes circuitry configured to generate a module signal based on trigger signals from the distance transducer and a calibration value. A data acquisition system (DAS) receives geophysical data sets from the geophysical instrument, positioning data from the positioning sensor, and the module signals. The DAS generates a DAS timestamp in response to each module signal and associates the DAS timestamp with each geophysical data set and a position associated with the geophysical data set, so as to substantially eliminate the variable time delay.

    摘要翻译: 移动地球物理仪器产生每个与通过使用位置传感器计算的位置相关联的地球物理数据集。 在收集每个地球物理数据集的数据和记录与每个地球物理数据集相关联的位置的时间之间的时间可变。 模块接收距离传感器数据,并且包括经配置以基于来自距离传感器的触发信号和校准值生成模块信号的电路。 数据采集​​系统(DAS)从地球物理仪器接收地球物理数据集,定位传感器定位数据和模块信号。 DAS响应于每个模块信号生成DAS时间戳,并将DAS时间戳与每个地球物理数据集和与地球物理数据集相关联的位置相关联,以便基本上消除可变时间延迟。

    Offset frequency homodyne ground penetrating radar
    4.
    发明授权
    Offset frequency homodyne ground penetrating radar 有权
    偏移频率零差地面穿透雷达

    公开(公告)号:US09348020B2

    公开(公告)日:2016-05-24

    申请号:US13797929

    申请日:2013-03-12

    摘要: Systems and methods involve generating a baseband signal, up-converting the baseband signal to a radar signal frequency, filtering a lower sideband of the up-converted signal, and transmitting the filtered up-converted signal. Systems and methods also involve receiving a return signal, down-converting the return signal using a signal having a frequency offset from the up-converted signal, filtering the upper sideband of the down-converted return signal, and producing a baseband return signal.

    摘要翻译: 系统和方法涉及生成基带信号,将基带信号上变频为雷达信号频率,对上变频信号的下边带进行滤波,以及发送滤波的上变频信号。 系统和方法还包括接收返回信号,使用具有从上变频信号的频率偏移的信号下变频返回信号,对下变频返回信号的上边带进行滤波,并产生基带返回信号。