基本信息:
- 专利标题： SYNTHETIC APERTURE RADAR SYSTEM AND METHOD FOR LOCAL POSITIONING
- 专利标题（中）：合成孔径雷达系统和局部定位方法
- 申请号：PCT/US2004/021366 申请日：2004-06-30
- 公开(公告)号：WO2005015258A1 公开(公告)日：2005-02-17
- 发明人： STEPHENS, Scott, A.
- 申请人： NAVCOM TECHNOLOGY, INC. , STEPHENS, Scott, A.
- 申请人地址： 20780 Madrona Avenue, Torrance, CA 90503 US
- 专利权人： NAVCOM TECHNOLOGY, INC.,STEPHENS, Scott, A.
- 当前专利权人： NAVCOM TECHNOLOGY, INC.,STEPHENS, Scott, A.
- 当前专利权人地址： 20780 Madrona Avenue, Torrance, CA 90503 US
- 代理机构： BREGMAN, Dion, M.
- 优先权： US10/614,097 20030703
- 主分类号： G01S13/87
- IPC分类号： G01S13/87
摘要：
A positioning system includes a passive, isotropic reflecting landmark at a fixed position and a device. The device transmits an electromagnetic pulse having a circular polarization and receives a return signal over a period of time. The return signal includes a reflected pulse from the reflecting landmark. The processes the return signal to isolate the reflected pulse from the return signal and to determine a range from the device to the reflecting landmark. The reflecting landmark includes a first passive reflector, a second passive reflector, and a static structure configured to statically position the second passive reflector at an angle relative to the first passive reflector. The device optionally moves in a particular direction while receiving the return signal, detects a Doppler shift in the reflected pulse portion of the return signal, and determines an angle between the particular direction and, a straight line between the device and the landmark.
摘要（中）：
定位系统包括在固定位置的无源，各向同性反射界标和装置。 该装置发送具有圆偏振的电磁脉冲，并在一段时间内接收返回信号。 返回信号包括来自反射界标的反射脉冲。 处理返回信号以将反射的脉冲与返回信号隔离并确定从器件到反射标记的范围。 反射地标包括第一无源反射器，第二无源反射器和被配置为相对于第一无源反射器成一定角度静止地定位第二无源反射器的静态结构。 该装置可选地在接收返回信号的同时沿特定方向移动，检测返回信号的反射脉冲部分中的多普勒频移，并确定特定方向与装置与地标之间的直线之间的角度。