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    • 8. 发明授权
    • Ultra-wideband radar system using sub-band coded pulses
    • 超宽带雷达系统采用子带编码脉冲
    • US06989782B2
    • 2006-01-24
    • US10851635
    • 2004-05-21
    • Michael L. WalkerDavid S. FurunoNaiel K. AskarGerald D. Rogerson
    • Michael L. WalkerDavid S. FurunoNaiel K. AskarGerald D. Rogerson
    • G01S7/28G01S13/00
    • G01S13/284G01S13/0209G01S13/282
    • Methods and apparatus are provided for radar systems using multiple pulses that are shorter than the expected range delay extent of the target to be imaged. In one implementation, a method for performing radar includes the steps of: transmitting a plurality of pulses, each pulse having a different center frequency and a time duration shorter than an expected range delay extent of a target, wherein a total bandwidth is defined by a bandwidth occupied by the plurality of pulses; receiving reflections of the plurality of pulses; and performing pulse compression on the received pulse reflections to generate a detection signal having a radar resolution approximately equivalent to the transmission and reception of a single pulse having the total bandwidth. In preferred form, the pulses comprise ultrawideband (UWB) pulses each occupying a sub-band of the overall system bandwidth.
    • 为使用比要成像的目标的预期范围延迟范围短的多个脉冲的雷达系统提供方法和装置。 在一个实施方式中,执行雷达的方法包括以下步骤:发送多个脉冲,每个脉冲具有与目标的预期范围延迟范围不同的中心频率和持续时间,其中总带宽由 多个脉冲占用的带宽; 接收多个脉冲的反射; 并对所接收的脉冲反射进行脉冲压缩,以生成雷达分辨率近似等于具有总带宽的单个脉冲的发送和接收的检测信号。 在优选形式中,脉冲包括每个占据整个系统带宽的子带的超宽带(UWB)脉冲。