Radar system and method for reducing clutter in a high-clutter environment
    11.
    发明申请
    Radar system and method for reducing clutter in a high-clutter environment 有权
    雷达系统及其在高杂波环境下减少杂波的方法

    公开(公告)号:US20060273951A1

    公开(公告)日:2006-12-07

    申请号:US11143045

    申请日:2005-06-02

    IPC分类号: G01S13/534

    摘要: A radar system transmits an environment-sensing pulse and processing circuitry time-reverses an order of radar return samples and generates a convolution matrix from the radar return samples resulting from a transmission of the environment-sensing pulse. The processing circuitry may also generate a plurality of return energy-ranked vectors from a decomposition of the convolution matrix. The processing circuitry may select one of the return energy-ranked vectors for generation of a clutter-orthogonal transmit waveform. In some embodiments, the processing circuitry may select a clutter-orthogonal vector from the plurality of return energy-ranked vectors and may quantize the clutter-orthogonal vector for application to the phase modulator for generation of the clutter-orthogonal transmit waveform. The radar system may perform multiple correlations on sampled radar returns from the clutter orthogonal transmit waveform using a family of pseudo-orthogonal waveforms to detect a slow-moving target.

    摘要翻译: 雷达系统传输环境感测脉冲,处理电路对雷达返回样本的顺序进行时间反演,并从环境感测脉冲传输得到的雷达返回样本产生卷积矩阵。 处理电路还可以从卷积矩阵的分解生成多个返回能量排列向量。 处理电路可以选择返回能量排列向量中的一个,以产生杂波正交发射波形。 在一些实施例中,处理电路可以从多个返回能量排列向量中选择杂波正交矢量,并且可以量化杂波正交矢量以供应用于相位调制器以产生杂波正交发射波形。 雷达系统可以使用一系列伪正交波形从杂波正交发射波形对采样的雷达返回执行多个相关性,以检测慢移目标。

    Radar system with adaptive waveform processing and methods for adaptively controlling the shape of a radar ambiguity function
    12.
    发明申请
    Radar system with adaptive waveform processing and methods for adaptively controlling the shape of a radar ambiguity function 有权
    具有自适应波形处理的雷达系统和自适应控制雷达模糊函数形状的方法

    公开(公告)号:US20070008213A1

    公开(公告)日:2007-01-11

    申请号:US11176020

    申请日:2005-07-07

    IPC分类号: G01S13/66 G01S7/292

    摘要: An adaptive waveform radar system transmits a selected waveform of a family of related waveforms and either phase shifts or bit shifts the radar return signal for correlating with the other waveforms of the family. In some embodiments, phase shifting may be performed to null an unwanted target or clutter, while bit shifting may be performed to enhance a desired target, although the scope of the invention is not limited in this respect. In some embodiments, the bits of the return signal may be either phase shifted or bit shifted to match a bit of each one of the other waveforms of the family prior to correlation.

    摘要翻译: 自适应波形雷达系统传输一系列相关波形的选定波形,并且相移或比特移位雷达返回信号以与该系列的其它波形相关。 在一些实施例中,尽管本发明的范围在这方面不受限制,但是可以执行相移以消除不想要的目标或杂波,同时可以执行位移位以增强期望的目标。 在一些实施例中,返回信号的位可以是相移或位移以在相关之前匹配该系列的其它波形中的每一个的位。