公开(公告)号：US20170054449A1

公开(公告)日：2017-02-23

申请号：US15061728

申请日：2016-03-04

Applicant: Texas Instruments Incorporated

Inventor： Anil Mani ,  Sandeep Rao ,  Karthik Ramasubramanian

IPC: H03M7/24

CPC classification number: H03M7/24 ,  G01S7/295 ,  G01S7/352 ,  G01S13/18 ,  G01S13/34 ,  G01S13/343 ,  G01S13/584 ,  G01S13/931 ,  G01S2007/356 ,  H03M7/40 ,  H03M7/4031 ,  H03M7/4075

Abstract: A radar system is provided that includes a compression component configured to compress blocks of range values to generate compressed blocks of range values, and a radar data memory configured to store compressed blocks of range values generated by the compression component.

Abstract translation: 提供一种雷达系统，其包括被配置为压缩范围值的块以产生压缩的范围值的块的压缩部件，以及被配置为存储由压缩部件生成的压缩的范围值块的雷达数据存储器。

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。

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。

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。

公开(公告)号：US09057615B2

公开(公告)日：2015-06-16

申请号：US13661318

申请日：2012-10-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sandeep Rao ,  Deric Wayne Waters

IPC: G01C21/10 ,  G01C21/16

CPC classification number: G01C21/18 ,  G01C17/38 ,  G01C19/42 ,  G01C21/005 ,  G01C21/06 ,  G01C21/16 ,  G01C21/26

Abstract: A method for navigating using a speed sensor and a yaw rate sensor includes computing, for each of a plurality of error parameter values, a distance traveled for each of a plurality of directions of travel. The method also includes selecting the error parameter value that maximizes the distance traveled in one or more of the directions of travel, applying the selected error parameter value to data from the yaw rate sensor, and navigating using dead reckoning based on data from the speed sensor and data from the yaw rate sensor with the applied error parameter value.

Abstract translation: 使用速度传感器和偏航率传感器进行导航的方法包括针对多个误差参数值中的每个错误参数值计算多个行进方向中的每一个行进的距离。 该方法还包括选择误差参数值，该误差参数值使在行进方向中的一个或多个方向上移动的距离最大化，将所选择的误差参数值应用于来自偏航率传感器的数据，以及使用基于来自速度传感器的数据的航位推算 和来自偏航率传感器的数据与应用的误差参数值。

公开(公告)号：US08935597B2

公开(公告)日：2015-01-13

申请号：US13860907

申请日：2013-04-11

Applicant: Texas Instruments Incorporated

Inventor： Sandeep Rao ,  Jawaharlal Tangudu ,  Karthik Ramasubramanian

IPC: H03M13/00 ,  G06F11/10 ,  G01S19/27

CPC classification number: G06F11/10 ,  G01S19/27

Abstract: An electronic circuit (2250) for a satellite receiver (100, 2200). The electronic circuit (2250) includes a correlator circuit (2310) operable to supply a data signal including ephemeris data and a subsequent satellite time datum, and a data processor (2370, 2380) operable to infer satellite time TS from as few as one of the ephemeris data prior to the satellite time datum. Other circuits, devices, receivers, systems, processes of operation and processes of manufacture are also disclosed.

Abstract translation: 一种用于卫星接收机（100,2200）的电子电路（2250）。 电子电路（2250）包括可操作以提供包括星历数据和随后的卫星时间数据的数据信号的相关器电路（2310），以及数据处理器（2370,2808），其可操作以从至少一个 在卫星时间基准之前的星历数据。 还公开了其它电路，设备，接收器，系统，操作过程和制造过程。

公开(公告)号：US12196847B2

公开(公告)日：2025-01-14

申请号：US16121689

申请日：2018-09-05

Applicant: Texas Instruments Incorporated

Inventor： Sandeep Rao ,  Karthik Subburaj ,  Brian Ginsburg ,  Karthik Ramasubramanian ,  Jawaharlal Tangudu ,  Sachin Bharadwaj

IPC: G01S13/58 ,  G01S7/35 ,  G01S13/34 ,  G01S13/931

Abstract: The disclosure provides a radar apparatus for estimating a range of an obstacle. The radar apparatus includes a local oscillator that generates a first ramp segment and a second ramp segment. The first ramp segment and the second ramp segment each includes a start frequency, a first frequency and a second frequency. The first frequency of the second ramp segment is equal to or greater than the second frequency of the first ramp segment when a slope of the first ramp segment and a slope of the second ramp segment are equal and positive. The first frequency of the second ramp segment is equal to or less than the second frequency of the first ramp segment when the slope of the first ramp segment and the slope of the second ramp segment are equal and negative.

公开(公告)号：US20250004100A1

公开(公告)日：2025-01-02

申请号：US18391109

申请日：2023-12-20

Applicant: Texas Instruments Incorporated

Inventor： Jasbir Singh ,  Premkumar Seetharaman ,  Sandeep Rao ,  Rashmi Sachan

IPC: G01S7/35 ,  G06F3/06

Abstract: An example device includes a memory that includes a first portion and a second portion, memory control circuitry structured to receive a first set of data associated with a first radar chirp, receive a second set of data associated with a second radar chirp, store a first subset of the first set of data in the first portion of the memory, store a first subset of the second set of data in the first portion of the memory adjacent to the first subset of the first set of data, and store a second subset of the first set of data and a second subset of the second set of data in the second portion of the memory.

公开(公告)号：US12174311B2

公开(公告)日：2024-12-24

申请号：US17466867

申请日：2021-09-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anil Varghese Mani ,  Sandeep Rao ,  Dan Wang

IPC: G01S7/02 ,  G01S13/58

Abstract: In an example, a method is implemented in a radar system. The method may include transmitting, via transmission channels, a frame of chirps, the chirps transmitted having a programmed frequency offset that is a function of a transmission channel of the transmission channels that is transmitting the frame of chirps, receiving, via a receive channel, a frame of reflected chirps, the reflected chirps comprising the chirps reflected by an object within a field of view of the radar system, and determining a Doppler domain representation of the frame of reflected chirps having a Doppler domain spectrum that includes multiple spectrum bands, the object represented in at least a portion of the spectrum bands based on the reflected chirps, wherein the programmed frequency is configured to cause the Doppler domain spectrum to include a number of spectrum bands greater than the number of transmission channels.

公开(公告)号：US20240272275A1

公开(公告)日：2024-08-15

申请号：US18222047

申请日：2023-07-14

Applicant: Texas Instruments Incorporated

Inventor： Sandeep Rao ,  Anil Mani ,  Karthik Ramasubramanian

IPC: G01S7/35

CPC classification number: G01S7/352

Abstract: A radar system may include a radar sensor circuit, a compression estimation circuit, a compression circuit, and a data storage circuit. The radar sensor circuit may receive a set of sensor data associated with a radar chirp signal. The radar sensor circuit may generate a set of range data associated with the set of sensor data, which may include first range data for a first range bin and second range data for a second range bin. The compression estimation circuit may determine a first compression ratio for the first range data and a second compression ratio for the second range data. The compression circuit may compress the first and second range data based on the first and second compression ratios respectively. The compressed first and second range data may be stored at the data storage circuit.