Seismic-data acquisition methods and apparatus
    1.
    发明申请
    Seismic-data acquisition methods and apparatus 失效
    地震数据采集方法和装置

    公开(公告)号:US20050276162A1

    公开(公告)日:2005-12-15

    申请号:US11118104

    申请日:2005-04-28

    IPC分类号: G01V1/00

    CPC分类号: G01V1/003 G01V1/223 G01V1/24

    摘要: A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“DTMF”) digits. A geophone interface is provided with a geophone for collecting acoustic data incident on the geophone. A memory is connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units. A battery power source is connected with the microprocessor.

    摘要翻译: 提供用于采集地震数据的独立数据采集单元。 该单元具有微处理器和适于接收电磁信号的天线。 解码器与微处理器连接,适用于将接收到的电磁信号转换为双音多频(“DTMF”)位。 地震检波器接口配有地震检波器,用于收集入射在地震检波器上的声学数据。 存储器与地震检波器接口连接,用于存储所收集的声学数据的表示,并存储用于同步由其他数据采集单元收集的声学数据的参考电磁信号的表示。 电池电源与微处理器连接。

    APPARATUS FOR DIRECTION FINDING OF WIRELESS SIGNALS
    2.
    发明申请
    APPARATUS FOR DIRECTION FINDING OF WIRELESS SIGNALS 有权
    用于寻找无线信号的方法

    公开(公告)号:US20130038487A1

    公开(公告)日:2013-02-14

    申请号:US13570006

    申请日:2012-08-08

    IPC分类号: G01S3/04

    CPC分类号: G01S3/325 G01S3/04 G01S3/26

    摘要: Provided herein is a compact and economical direction finding antenna using a mono-pulse antenna system, where a plurality of antenna elements are disposed in a circular array. The directional antennas may be formed by any type of antenna element, including a patch or reflector. The antenna beams of the directional antenna elements overlap, so that from any azimuthal direction, the point is covered by more than one antenna beam. Signals from each pair of adjacent antenna elements of the circular array are processed in order to determine the angle of arrival of a received signal.

    摘要翻译: 本文提供了一种使用单脉冲天线系统的紧凑且经济的测向天线,其中多个天线元件以圆形阵列布置。 定向天线可以由任何类型的天线元件形成,包括贴片或反射器。 定向天线元件的天线波束重叠,使得从任何方位方向,该点被多于一个天线波束覆盖。 来自圆形阵列的每对相邻天线元件的信号被处理以确定接收信号的到达角。

    Apparatus for direction finding of wireless signals

    公开(公告)号:US09645222B2

    公开(公告)日:2017-05-09

    申请号:US13570006

    申请日:2012-08-08

    IPC分类号: G01S3/32 G01S3/04 G01S3/26

    CPC分类号: G01S3/325 G01S3/04 G01S3/26

    摘要: Provided herein is a compact and economical direction finding antenna using a mono-pulse antenna system, where a plurality of antenna elements are disposed in a circular array. The directional antennas may be formed by any type of antenna element, including a patch or reflector. The antenna beams of the directional antenna elements overlap, so that from any azimuthal direction, the point is covered by more than one antenna beam. Signals from each pair of adjacent antenna elements of the circular array are processed in order to determine the angle of arrival of a received signal.