公开(公告)号：US09590760B2

公开(公告)日：2017-03-07

申请号：US14294783

申请日：2014-06-03

Applicant: Raytheon Company

Inventor： Walter B. Schulte, Jr. ,  John P. Gianvittorio ,  Harry B. Marr

IPC: H04K3/00 ,  H04L7/00 ,  H04L27/34 ,  H04L27/26 ,  G01S7/38

CPC classification number: H04K3/42 ,  G01S7/38 ,  H04L7/0025 ,  H04L27/2627 ,  H04L27/34

Abstract: An electronic analog memory system includes at least one analog programmable delay module configured to receive an input radio frequency pulse. The analog programmable delay module generates a time delayed output signal in response to applying at least one time delay to the input radio frequency pulse. A switching module is configured to selectively deliver the time delayed output signal to an output of the electronic analog memory system. The electronic analog memory system further includes an activity detector module configured to determine the amplitude of the input radio frequency pulse. The activity detector module also controls the switching module to deliver the time delayed output signal to the output in response to the at least one amplitude exceeding an amplitude threshold.

Abstract translation: 电子模拟存储器系统包括被配置为接收输入射频脉冲的至少一个模拟可编程延迟模块。 模拟可编程延迟模块响应于对输入射频脉冲施加至少一个时间延迟而产生时间延迟的输出信号。 开关模块被配置为选择性地将时间延迟的输出信号传送到电子模拟存储器系统的输出端。 电子模拟存储器系统还包括被配置为确定输入射频脉冲的幅度的活动检测器模块。 响应于至少一个振幅超过振幅阈值，活动检测器模块还控制切换模块将延时输出信号传送到输出端。

公开(公告)号：US09543662B2

公开(公告)日：2017-01-10

申请号：US14199126

申请日：2014-03-06

Applicant: Raytheon Company

Inventor： Harry B. Marr ,  Walter B. Schulte, Jr. ,  John P. Gianvittorio

IPC: G01S7/03 ,  G01S13/44 ,  H01Q25/00 ,  H01Q3/24 ,  H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  G01S7/38 ,  H01Q15/02

CPC classification number: H01Q25/008 ,  G01S7/03 ,  G01S7/38 ,  G01S13/4409 ,  H01Q3/2676 ,  H01Q15/02 ,  H04B7/0671 ,  H04B7/0894

Abstract: Embodiments are directed to operating an analog signal processing circuit to emulate a Rotman lens. The analog signal processing circuit applies a plurality of time delays to a plurality of signals associated with a plurality of beam ports. The analog signal processing circuit forms a plurality of output beams for transmission by a plurality of array ports included in an array based on the time delayed signals by summing the time delayed signals. The time delays are based on a direction of transmission of the output beams.

Abstract translation: 实施例涉及操作模拟信号处理电路以模拟Rotman透镜。 模拟信号处理电路对与多个波束端口相关联的多个信号应用多个时间延迟。 模拟信号处理电路通过对时间延迟信号求和来形成多个输出光束，用于通过包括在阵列中的多个阵列端口基于时间延迟的信号进行传输。 时间延迟基于输出光束的传输方向。

公开(公告)号：US10598763B2

公开(公告)日：2020-03-24

申请号：US15221347

申请日：2016-07-27

Applicant: RAYTHEON COMPANY

Inventor： Theodore M. Kellum ,  Walter B. Schulte, Jr. ,  Harry B. Marr

IPC: G01S7/02 ,  G01S13/86 ,  G01S13/10 ,  G01S7/282 ,  H01Q3/26 ,  H04B7/08 ,  H04W16/14

Abstract: A method for concurrent transmission of different signal types by a radar system includes: receiving a waveform request for transmitting a first signal type and a second signal type; determining whether the first signal or the second signal is optimized; when the first signal is optimized: transmitting the first and the second signal simultaneously in separate bands; and when the second signal is optimized: determining a time gap between transmission of the second signal, and adjusting pulse repetition interval (PRI) or pulse width of the first signal to fit in the time gap, transmitting the second signal, and transmitting the first signal in the time gap between the transmission of the second signal.

公开(公告)号：US09588213B2

公开(公告)日：2017-03-07

申请号：US14182505

申请日：2014-02-18

Applicant: Raytheon Company

Inventor： Harry Marr ,  Walter B. Schulte, Jr. ,  John P. Gianvittorio

IPC: G01S5/02 ,  G01S3/14 ,  G01S3/46 ,  G01S3/808

CPC classification number: G01S3/14 ,  G01S3/043 ,  G01S3/46 ,  G01S3/465 ,  G01S3/48 ,  G01S3/808

Abstract: Embodiments are directed to receiving an incoming signal, converting, by an analog circuit, the signal to a discrete time signal, applying, by the analog circuit, a transformation algorithm to the discrete time signal to obtain frequency samples of the discrete time signal, applying, by the analog circuit, a cross correlation algorithm to the frequency samples to obtain a cross spectral density (CSD), detecting, by the analog circuit, phase slopes associated with the CSD, and calculating an angle of arrival (AoA) of the incoming signal based on the phase slopes.

Abstract translation: 实施例旨在接收输入信号，通过模拟电路将信号转换为离散时间信号，由模拟电路将变换算法应用于离散时间信号，以获得离散时间信号的频率采样，应用 通过模拟电路，对频率样本进行交叉相关算法以获得交叉频谱密度（CSD），由模拟电路检测与CSD相关联的相位斜率，并计算输入的到达角（AoA） 信号基于相位斜率。