公开(公告)号：US20150070099A1

公开(公告)日：2015-03-12

申请号：US14024940

申请日：2013-09-12

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： JAMES F. SEARCY ,  RYAN K. ROSSITER

IPC: H03L7/00

CPC classification number: H03L7/00 ,  G01S7/35 ,  G01S7/4008 ,  G01S13/34 ,  G01S13/931

Abstract: A system for generating a variable frequency is provided. The system includes a voltage controlled oscillator (VCO) and an integrator. The VCO is configured to output a frequency signal with a frequency value dependent on a voltage value of a control signal. The integrator is configured to vary the control signal provided to the VCO. The ramp rate of the integrator is varied so the frequency value changes at a substantially constant frequency rate over a period of time, i.e. is linearized. In one configuration, the ramp rate of the integrator is based on an input value of an input signal to the integrator determined by a digital to analog convertor (DAC).

Abstract translation: 提供了一种用于产生可变频率的系统。 该系统包括压控振荡器（VCO）和积分器。 VCO被配置为输出具有取决于控制信号的电压值的频率值的频率信号。 积分器被配置为改变提供给VCO的控制信号。 积分器的斜率变化，使得频率值在一段时间内以基本恒定的频率速率改变，即线性化。 在一种配置中，积分器的斜率基于由数模转换器（DAC）确定的对积分器的输入信号的输入值。

公开(公告)号：US20170160380A1

公开(公告)日：2017-06-08

申请号：US14962092

申请日：2015-12-08

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： JAMES F. SEARCY ,  ALEBEL HASSEN ARAGE ,  STEPHEN W. ALLAND ,  SIYANG CAO

IPC: G01S7/32 ,  H04B7/04

CPC classification number: G01S13/288 ,  G01S7/038 ,  G01S7/2921 ,  G01S13/42 ,  G01S13/931 ,  G01S2007/2883 ,  H04B7/0413

Abstract: A Pseudo-Random Phase Modulation (PRPM) multiple-input-multiple-output (MIMO) radar system suitable for use on an automated vehicle includes a first transmit-antenna that transmits a first transmit-signal generated by a first PRPM-code, a second transmit-antenna that transmits a second transmit-signal generated by a second PRPM-code, a receive-antenna used to detect a first reflected-signal arising from the first transmit-signal and a second reflected-signal arising from the second transmit-signal, and a controller. The controller is in communication with the receive-antenna and is operable to generate the first PRPM-code and the second PRPM-code. The controller is configured to generate a first sub-channel-output based on a down-converted-signal from the receive-antenna and the first PRPM-code, generate a second sub-channel-output based on the down-converted-signal from the receive-antenna and the second PRPM-code, determine a first residue-signal based on the second sub-channel-output, and determine a first residue-removed-signal by subtracting the first residue-signal from the first sub-channel-output.

公开(公告)号：US20180024233A1

公开(公告)日：2018-01-25

申请号：US15204056

申请日：2016-07-07

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： JAMES F. SEARCY ,  RYAN K. ROSSITER ,  STEPHEN W. ALLAND

IPC: G01S13/00 ,  G01S7/00

CPC classification number: G01S13/003 ,  G01S7/006 ,  G01S7/032

Abstract: A bi-static radar system configured for coherent detection of a radar-signal includes a plurality of radar-transceivers, a controller, and a communications device. The plurality of radar-transceivers is characterized as physically spaced apart with respect to each other. The controller is in communication with the each of the radar-transceivers and is configured to coherently operate each of the radar-transceivers. The communications device communicates both a reference-clock signal and a frame-sync signal from the controller to each of the plurality of radar-transceivers whereby the plurality of radar-transceivers operate coherently. Alternatively, the system may include a reference-signal generator, a transmitter, and a plurality of receivers. The reference-signal generator generates a reference-signal characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal transmitted. The transmitter generates the radar-signal at the radar-frequency based on the reference-signal. The plurality of receivers operates coherently to detect the radar-signal based on the reference-signal.

公开(公告)号：US20160197400A1

公开(公告)日：2016-07-07

申请号：US14591120

申请日：2015-01-07

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： DAVID W. ZIMMERMAN ,  JAMES F. SEARCY ,  CHARLES I. DELHEIMER

IPC: H01Q1/50 ,  H05K1/02

CPC classification number: H01Q1/50 ,  H01L23/66 ,  H01L2223/6683 ,  H01L2224/48472 ,  H01L2224/49175 ,  H01L2924/0002 ,  H01P5/028 ,  H01Q21/065 ,  H05K1/02 ,  H05K1/0243 ,  H05K1/141 ,  H05K1/184 ,  H05K3/368 ,  H05K2201/041 ,  H05K2201/10007 ,  H05K2201/10098 ,  H05K2203/049

Abstract: A circuit board assembly includes a low-frequency (LF) substrate, a monolithic microwave integrated circuit (MMIC), electrical components, a high-frequency (HF) substrate, and an antenna. The LF substrate is formed of FR-4 type material. The LF substrate defines a waveguide through the LF substrate. The MMIC is attached to the top-side of the LF substrate and outputs the radio-frequency signal. The electrical components are electrically attached to the LF substrate. The HF substrate is soldered to the top side of the LF substrate. An opening through the HF substrate surrounds the MMIC. A vertical transition guides the radio-frequency signal output by the MMIC to the waveguide. A plurality of wire bonds electrically connects the MMIC to the HF substrate and couple the radio-frequency signal from the MMIC to the vertical transition. The antenna is attached to the LF substrate and configured to radiate the radio-frequency signal from the waveguide.

Abstract translation: 电路板组件包括低频（LF）衬底，单片微波集成电路（MMIC），电气部件，高频（HF）衬底和天线。 LF基板由FR-4型材料形成。 LF衬底限定通过LF衬底的波导。 MMIC连接到LF基板的顶侧，并输出射频信号。 电气部件电连接到LF基板。 将HF衬底焊接到LF衬底的顶侧。 通过HF衬底的开口围绕MMIC。 垂直转换将MMIC输出的射频信号引导到波导。 多个引线键合将MMIC电连接到HF衬底，并将来自MMIC的射频信号耦合到垂直转换。 天线连接到LF衬底并且被配置为辐射来自波导的射频信号。

公开(公告)号：US20160033631A1

公开(公告)日：2016-02-04

申请号：US14445569

申请日：2014-07-29

Applicant: Delphi Technologies, Inc.

Inventor： JAMES F. SEARCY ,  STEPHEN W. ALLAND

IPC: G01S13/28 ,  G01S7/28 ,  G01S13/18

CPC classification number: G01S13/28 ,  G01S7/2806 ,  G01S7/354 ,  G01S13/18 ,  G01S13/343 ,  G01S13/584 ,  G01S13/931 ,  G01S2007/356 ,  G01S2013/9392 ,  H03M7/30

Abstract: A radar system includes a controller equipped with memory for storing data. The controller is configured to receive a time-domain signal representative of a reflected signal detected by an antenna, and transform the time-domain signal into a plurality of range datasets. Each range dataset corresponds to one of the plurality of chirps, each range dataset is represented by a series of values assigned to a plurality of range bins, and each of the values includes a sign bit. The controller is also configured to compress the plurality of range datasets by storing in the memory a portion of each of the values assigned to at least one of the plurality of range bins, wherein the portion is defined to exclude a first number of redundant sign bits of each value. The controller may further compress the portion by retaining a second number of bits of the data by excluding some of the least significant bits of each value.

Abstract translation: 雷达系统包括配备有用于存储数据的存储器的控制器。 控制器被配置为接收表示由天线检测的反射信号的时域信号，并将时域信号变换为多个范围数据集。 每个范围数据集对应于多个啁啾中的一个，每个范围数据集由分配给多个范围仓的一系列值表示，并且每个值包括符号位。 控制器还被配置为通过在存储器中存储分配给多个范围区中的至少一个范围区的每个值的一部分来压缩多个范围数据集，其中该部分被定义为排除第一数量的冗余符号位 的每个值。 控制器可以通过排除每个值的一些最低有效位来保留数据的第二数量位来进一步压缩该部分。