公开(公告)号：US3849779A

公开(公告)日：1974-11-19

申请号：US34560373

申请日：1973-03-28

申请人： US NAVY

发明人： BOYD W

IPC分类号： G01S13/42 ,  G01S13/68 ,  G01S9/02

CPC分类号： G01S13/68 ,  G01S13/422

摘要： A multiple target indicator and discriminator is provided for use on a tracking radar of the sequential lobe type. Multiple targets occurring within one radar beam-width cause the radar return signal to have a phase modulated component at the scan rate frequency and also an additional second harmonic, amplitude modulated component at twice the scan rate frequency. These modulated components are detected and removed from the radar return signal and used to provide a multiple target indicating signal. These modulated components are also used to produce an angle bias signal which, when added to an angle error signal in the radar angle track loop, causes the radar to track only one target in a formation of targets. Since the angle bias signal is developed directly from either the phase modulated component or the amplitude modulated component of the return signal produced by the multiple targets, such bias signal is responsive to any change in target reflectivity and thereby provides an adaptive angle bias signal.

摘要翻译： 提供多目标指示符和鉴别器用于顺序波瓣类型的跟踪雷达。 在一个雷达波束宽度内发生的多个目标导致雷达返回信号具有扫描速率频率的相位调制分量，以及扫描速率频率两倍的附加二次谐波调幅分量。 从雷达返回信号中检测和去除这些调制分量，并用于提供多目标指示信号。 这些调制分量也用于产生一个角度偏置信号，当角度误差信号被加到雷达角度轨道环路中时，该雷达只能在目标的形成中跟踪一个目标。 由于角度偏置信号直接由相位调制分量或由多个目标产生的返回信号的幅度调制分量产生，所以这种偏置信号响应于目标反射率的任何变化，从而提供自适应角度偏置信号。