公开(公告)号：US06664914B2

公开(公告)日：2003-12-16

申请号：US10204953

申请日：2002-10-17

申请人： Denis Longstaff ,  David Noon ,  Chris Leat ,  Glen Stickley ,  Mikhail Cherniakov

发明人： Denis Longstaff ,  David Noon ,  Chris Leat ,  Glen Stickley ,  Mikhail Cherniakov

IPC分类号： G01S1388

CPC分类号： H01Q9/28 ,  G01S13/0209 ,  G01S13/88 ,  G01S13/885

摘要： A ground penetrating radar includes a signal generator, a return signal processor, a gate and an antenna. The signal generator is a dual frequency synthesizer that generates a stepped frequency master signal and a tracking signal offset by an intermediate frequency. The return signal processor is a dual channel quadrature receiver that mixes down a return signal and a sample of the master signal to intermediate frequency using the tracking signal. The signal generator is pulsed by the gate and the return signal is gated at the same frequency. Hollow pyramidal antennas are also described that have an ultrawide band bowtie structure with antenna electronics located within one antenna element. A method of operating the radar is also described.

摘要翻译： 地面穿透雷达包括信号发生器，返回信号处理器，门和天线。 信号发生器是双频合成器，其产生阶跃频率主信号和由中间频率偏移的跟踪信号。 返回信号处理器是双通道正交接收器，其使用跟踪信号将返回信号和主信号的采样与中频混合。 信号发生器由门脉冲，并且返回信号以相同的频率门控。 还描述了具有位于一个天线元件内的天线电子装置的超宽带弓形结构的中空金字塔形天线。 还描述了操作雷达的方法。