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    SYSTEM AND METHOD FOR RADAR GESTURE RECOGNITION
    51.
    发明申请
    SYSTEM AND METHOD FOR RADAR GESTURE RECOGNITION 审中-公开

    公开(公告)号：US20190087009A1

    公开(公告)日：2019-03-21

    申请号：US15952453

    申请日：2018-04-13

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Sandeep Rao ,  Sachin Bharadwaj ,  Piyali Goswami

    IPC: G06F3/01 ,  G06F3/16 ,  G01S13/58 ,  G01S7/35 ,  G01S7/41

    Abstract: A method for gesture recognition includes receiving, by a processor, a first digital intermediate frequency (IF) signal stream from a first receive antenna and receiving, by the processor, a second digital IF signal stream from a second receive antenna. The method also includes computing, by the processor, a weighted Doppler metric stream based on the first digital IF signal stream and the second digital IF signal stream and computing, by the processor, an angle metric stream based on the first digital IF signal stream and the second digital IF signal stream. Additionally, the method includes computing, by the processor, a correlation between the weighted Doppler metric stream and the angle metric stream, to generate a first correlation and recognizing, by the processor, a gesture, based on the first correlation.

    Methods and Apparatus for Velocity Detection in MIMO Radar Including Velocity Ambiguity Resolution
    53.
    发明申请
    Methods and Apparatus for Velocity Detection in MIMO Radar Including Velocity Ambiguity Resolution 审中-公开

    公开(公告)号：US20180011170A1

    公开(公告)日：2018-01-11

    申请号：US15371754

    申请日：2016-12-07

    Applicant: Texas Instruments Incorporated

    Inventor： Sandeep Rao ,  Karthik Subburaj ,  Dan Wang ,  Adeel Ahmad

    IPC: G01S7/35 ,  G01S13/58

    CPC classification number: G01S7/354 ,  G01S13/343 ,  G01S13/42 ,  G01S13/92 ,  G01S2007/356

    Abstract: In accordance with described examples, a method determines if a velocity of an object detected by a radar is greater than a maximum velocity by receiving on a plurality of receivers at least one frame of chirps transmitted by at least two transmitters and reflected off of the object. A velocity induced phase shift (φd) in a virtual array vector S of signals received by each receiver corresponding to a sequence of chirps (frame) transmitted by each transmitter is estimated. Phases of each element of virtual array vector S are corrected using φd to generate a corrected virtual array vector Sc. A first Fourier transform is performed on the corrected virtual array vector Sc to generate a corrected virtual array spectrum to detect a signature that indicates that the object has an absolute velocity greater than a maximum velocity.

    Performing GPS operations in receiver sensor engine and position engine
    58.
    发明授权
    Performing GPS operations in receiver sensor engine and position engine 有权
    在接收机传感器引擎和位置引擎中执行GPS操作

    公开(公告)号：US09360560B2

    公开(公告)日：2016-06-07

    申请号：US14686310

    申请日：2015-04-14

    Applicant: Texas Instruments Incorporated

    Inventor： Goutam Dutta ,  Tarkesh Pande ,  Sandeep Rao ,  Deric W. Waters

    IPC: G01S19/47 ,  G01C21/16 ,  G01S19/20 ,  G01S19/49 ,  G01S19/52

    CPC classification number: G01S19/47 ,  G01C21/165 ,  G01S19/20 ,  G01S19/49 ,  G01S19/52

    Abstract: Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.

    Abstract translation: 本公开的实施例提供了用于全球导航卫星系统中的传感器集成的交叉耦合位置引擎结构。 在一个实施例中，公开了一种用于在定位系统接收器内处理惯性传感器数据的数据处理引擎。 数据处理引擎包括用于接收传感器数据的第一输入端和用于接收定位数据的第二输入端。 数据处理系统还包括存储器和处理器。 数据处理系统的处理器耦合到存储器和第一和第二输入端。 数据处理系统的处理器被配置为从惯性传感器数据和定位数据计算净加速度曲线数据。 由数据处理系统的处理器计算的净加速度曲线数据用于全球定位系统（GPS）接收机，以随后计算位置和速度数据。

    Controlling Radar Transmission to Enable Interference Mitigation
    59.
    发明申请
    Controlling Radar Transmission to Enable Interference Mitigation 有权
    控制雷达传输以实现干扰减轻

    公开(公告)号：US20160146933A1

    公开(公告)日：2016-05-26

    申请号：US14552505

    申请日：2014-11-25

    Applicant: Texas Instruments Incorporated

    Inventor： Sandeep Rao ,  Karthik Subburaj

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

    CPC classification number: G01S7/023 ,  G01S7/28 ,  G01S7/354 ,  G01S13/34 ,  G01S13/343 ,  G01S13/38 ,  G01S13/583 ,  G01S13/931

    Abstract: Radar detection of an object is achieved by identifying a first range associated with a possible object based on a first return from a first radar transmission having a first chirp rate, and identifying a second range associated with the possible object based on a second return from a second radar transmission having a second chirp rate that differs from the first chirp rate. The first and second ranges are evaluated together to determine whether the possible object is a true object.

    Abstract translation: 通过基于来自具有第一啁啾率的第一雷达传输的第一返回来识别与可能对象相关联的第一范围，并且基于来自第一啁啾率的第二返回来识别与可能对象相关联的第二范围来实现对象的雷达检测 第二雷达传输具有与第一啁啾率不同的第二啁啾率。 一起评估第一和第二范围以确定可能的对象是否是真实对象。

    "> METHOD TO
    60.
    发明申请
    METHOD TO "ZOOM INTO" SPECIFIC OBJECTS OF INTEREST IN A RADAR 有权
    将“缩小为”雷达利益特定目标的方法“

    公开(公告)号：US20160116570A1

    公开(公告)日：2016-04-28

    申请号：US14521325

    申请日：2014-10-22

    Applicant: Texas Instruments Incorporated

    Inventor： Karthik Ramasubramanian ,  Sandeep Rao

    IPC: G01S7/02 ,  G01S13/08

    CPC classification number: G01S7/02 ,  G01S7/03 ,  G01S7/354 ,  G01S13/08 ,  G01S13/343 ,  G01S13/931 ,  G01S2007/356

    Abstract: The disclosure provides a radar apparatus fur estimating a distance of the one or more obstacles in a range of interest. The radar apparatus includes a local oscillator that generates a first ramp segment having a first start frequency. A frequency shifter receives the first ramp segment and generates a transmit signal and a mixer signal. The transmit signal is scattered by a one or more obstacles in the range of interest to generate the scattered signal. A mixer mixes the scattered signal and the mixer signal to generate a non-zero IF signal which is filtered to generate a filtered non-zero IF signal. An ADC (analog to digital converter) samples the filtered non-zero IF signal to generate a valid data. A DSP (digital signal processor) processes the valid data for estimating the distance of the one or more obstacles.

    Abstract translation: 本公开提供了一种雷达装置，用于估计感兴趣的范围内的一个或多个障碍物的距离。 雷达装置包括本地振荡器，其产生具有第一起始频率的第一斜坡段。 频移器接收第一斜坡段并产生发射信号和混频器信号。 发射信号被感兴趣范围内的一个或多个障碍物散射以产生散射信号。 混频器将散射信号和混频器信号混合以产生非零IF信号，其被滤波以产生经滤波的非零IF信号。 ADC（模数转换器）对滤波后的非零IF信号进行采样以生成有效数据。 DSP（数字信号处理器）处理有效数据以估计一个或多个障碍物的距离。

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