公开(公告)号：US09482744B1

公开(公告)日：2016-11-01

申请号：US14161878

申请日：2014-01-23

Applicant: Lockheed Martin Corporation

Inventor： Brian P. Neary ,  Peter H. Stockmann

IPC: G01S7/28 ,  G01S13/22 ,  G01S13/526 ,  G01S13/04 ,  G01S13/18 ,  G01S13/00

CPC classification number: G01S13/526 ,  G01S7/2922 ,  G01S13/18 ,  G01S13/225 ,  G01S13/28 ,  G01S13/5244 ,  G01S13/528

Abstract: A method of operating a pulse-Doppler radar system includes the steps of generating a plurality waveforms, with each waveform comprising a plurality of pulses generated with a staggered pulse repetition frequency (PRF) from pulse to pulse. Received reflected return signals from the generated plurality of waveforms are filtered by a plurality of Doppler filters that span an entire required Doppler visibility range.

Abstract translation: 一种操作脉冲多普勒雷达系统的方法包括产生多个波形的步骤，每个波形包括从脉冲到脉冲的交错脉冲重复频率（PRF）产生的多个脉冲。 来自所生成的多个波形的接收反射的返回信号被跨越整个所需多普勒可见范围的多个多普勒滤波器滤波。

公开(公告)号：US09170320B1

公开(公告)日：2015-10-27

申请号：US13692346

申请日：2012-12-03

Applicant: Lockheed Martin Corporation

Inventor： Peter H. Stockmann ,  Jonathan Fischi

IPC: G01S7/02 ,  G01S7/28 ,  G01S7/40 ,  G01S13/52

CPC classification number: G01S7/2813 ,  G01S7/023 ,  G01S7/40 ,  G01S7/4008 ,  G01S13/52

Abstract: A method of compensating for transmitter instability of a radar system is provided. The method includes the steps of transmitting at least one electromagnetic pulse and directly measuring at least one characteristic of the transmitted pulse. A comparison is made between the at least one measured characteristic of the transmitted pulse to a reference pulse characteristic. The results of this comparison are used to generate a complex weight for the at least one electromagnetic pulse. The weight is applied to the received return of the at least one electromagnetic pulse.

Abstract translation: 提供了一种补偿雷达系统发射机不稳定性的方法。 该方法包括以下步骤：发送至少一个电磁脉冲并直接测量发射脉冲的至少一个特性。 将所发射的脉冲的至少一个测量特性与参考脉冲特性进行比较。 该比较的结果用于产生至少一个电磁脉冲的复数权重。 该重量被应用于接收到的至少一个电磁脉冲的返回。

公开(公告)号：US08970426B1

公开(公告)日：2015-03-03

申请号：US13678045

申请日：2012-11-15

Applicant: Lockheed Martin Corporation

Inventor： Peter H. Stockmann ,  David M. Mittiga

IPC: G01S13/00 ,  G01S7/292

CPC classification number: G01S13/5244 ,  G01S13/28

Abstract: A system for suppressing clutter in a radar system is provided. The system includes an antenna configured to receive radar signals containing clutter and a digital receiver adapted to convert the radar signals received by the radar arrays to complex I/Q samples. These I/Q samples are provided to a Doppler filter bank comprising a plurality of Doppler filters for filtering the pulse compressed data into Doppler bins representative of range values according to Doppler frequency. The system further includes at least one processor for comparing the output of each of the plurality of Doppler filters types to respective background clutter maps, and identifying the Doppler filter which outputs the radar return signal with the greatest magnitude over the clutter map. Once identified, target detection operations may be performed on the output of the identified Doppler filter.

Abstract translation: 提供了一种用于抑制雷达系统中杂波的系统。 该系统包括被配置为接收包含杂波的雷达信号的天线和适于将由雷达阵列接收的雷达信号转换成复杂I / Q样本的数字接收机。 将这些I / Q样本提供给包括多个多普勒滤波器的多普勒滤波器组，用于根据多普勒频率将脉冲压缩数据过滤到表示范围值的多普勒频带。 该系统还包括至少一个处理器，用于将多个多普勒滤波器类型中的每一个的输出与相应的背景杂波图进行比较，以及识别在杂波图上输出最大幅度的雷达返回信号的多普勒滤波器。 一旦识别，可以对所识别的多普勒滤波器的输出执行目标检测操作。