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21.发明授权公开(公告)号：US11327166B2
公开(公告)日：2022-05-10
申请号：US16832073
申请日：2020-03-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Murtaza Ali , Dan Wang , Muhammad Zubair Ikram
Abstract: In the proposed low complexity technique a hierarchical approach is created. An initial FFT based detection and range estimation gives a coarse range estimate of a group of objects within the Rayleigh limit or with varying sizes resulting from widely varying reflection strengths. For each group of detected peaks, demodulate the input to near DC, filter out other peaks (or other object groups) and decimate the signal to reduce the data size. Then perform super-resolution methods on this limited data size. The resulting distance estimations provide distance relative to the coarse estimation from the FFT processing.
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公开(公告)号：US10809365B2
公开(公告)日：2020-10-20
申请号：US14833916
申请日：2015-08-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sujeet Milind Patole , Anand Dabak , Lei Ding , Murtaza Ali
Abstract: A frequency modulated continuous wave (FMCW) radar system that includes a transceiver coupled to an analog to digital converter (ADC), and a digital signal processor (DSP) coupled to the ADC. The transceiver is configured to transmit a plurality of FMCW chirps, receive a plurality of reflected FMCW chirps, and mix the plurality of reflected FMCW chirps with at least one of the FMCW chirps to generate a plurality of beat signals. The reflected FMCW chirps are the FMCW chirps after being reflected off of a target object. The ADC is configured to convert the beat signals into a plurality of digital chirps. The DSP is configured to receive the digital chirps and quantify a plurality of vibration parameters for the target object based on a comparison of phase information in a frequency domain between one of the plurality of FMCW chirps and one of the plurality of digital chirps.
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Patent Agency Ranking
公开(公告)号：US09594159B2
公开(公告)日：2017-03-14
申请号：US14277033
申请日：2014-05-13
Applicant: Texas Instruments Incorporated
Inventor： Dan Wang , Murtaza Ali
IPC: G01S13/93 , G01S7/292 , G01S13/72 , G01S13/42 , G01S7/41 , G01S13/58 , G01S7/35 , G01S13/524 , G01S13/50
CPC classification number: G01S13/72 , G01S7/292 , G01S7/2922 , G01S7/2927 , G01S7/354 , G01S7/414 , G01S13/42 , G01S13/50 , G01S13/5244 , G01S13/581 , G01S13/931 , G01S2013/9332
Abstract: A set of radar data is organized as a two dimensional (2D) array with multiple lines of data. A 2D cross point analysis is performed on each set of data to detect objects in range of the radar system. A set of candidate objects is identified by performing an initial one dimensional (1D) analysis on a line of data along a first axis of the set if data to determine a candidate location of each candidate object along the first axis; however, the set of candidate objects may include false objects. The set of candidate objects is pruned by performing a cross 1D analysis of the data along a second axis of the set of data at a position corresponding to each candidate location along the first axis to select a set of most likely candidate objects from the set of candidate objects.
Abstract translation: 一组雷达数据被组织为具有多行数据的二维（2D）阵列。 对每组数据执行2D交叉点分析，以检测雷达系统范围内的对象。 通过对沿着该组的第一轴的数据线进行初始一维（1D）分析来识别一组候选对象，如果数据用于确定沿着第一轴的每个候选物体的候选位置; 然而，候选对象的集合可以包括假对象。 通过在与沿着第一轴的每个候选位置相对应的位置处沿着该组数据的第二轴执行数据的十字1D分析来修剪候选对象集合，以从该组中选择一组最可能的候选对象 候选对象。
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公开(公告)号：US20160291142A1
公开(公告)日：2016-10-06
申请号：US15089956
申请日：2016-04-04
Applicant: Texas Instruments Incorporated
Inventor： Adeel Ahmad , Dan Wang , Muhammad Zubair Ikram , Murtaza Ali
CPC classification number: G01S7/352 , G01S7/414 , G01S7/415 , G01S13/931 , G01S2007/356
Abstract: An FMCW radar is used to detect live objects by processing the matched, filtered radar return on a frame by frame basis. An FFT cross correlation coefficient is computed, followed by computing a modified geometric mean of the absolute value of the cross correlation coefficients. The modified geometric mean is then compared to a preset threshold to determine whether the object is moving or is stationary.
Abstract translation: FMCW雷达用于通过逐帧处理匹配的滤波雷达回波来检测实时物体。 计算FFT互相关系数，然后计算互相关系数绝对值的修正几何平均值。 然后将修改的几何平均值与预设阈值进行比较，以确定对象是移动还是静止。
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公开(公告)号：US20160245911A1
公开(公告)日：2016-08-25
申请号：US14277033
申请日：2014-05-13
Applicant: Texas Instruments Incorporated
Inventor： Dan Wang , Murtaza Ali
CPC classification number: G01S13/72 , G01S7/292 , G01S7/2922 , G01S7/2927 , G01S7/354 , G01S7/414 , G01S13/42 , G01S13/50 , G01S13/5244 , G01S13/581 , G01S13/931 , G01S2013/9332
Abstract: A set of radar data is organized as a two dimensional (2D) array with multiple lines of data. A 2D cross point analysis is performed on each set of data to detect objects in range of the radar system. A set of candidate objects is identified by performing an initial one dimensional (1D) analysis on a line of data along a first axis of the set if data to determine a candidate location of each candidate object along the first axis; however, the set of candidate objects may include false objects. The set of candidate objects is pruned by performing a cross 1D analysis of the data along a second axis of the set of data at a position corresponding to each candidate location along the first axis to select a set of most likely candidate objects from the set of candidate objects.
Abstract translation: 一组雷达数据被组织为具有多行数据的二维（2D）阵列。 对每组数据执行2D交叉点分析，以检测雷达系统范围内的对象。 通过对沿着该组的第一轴的数据线进行初始一维（1D）分析来识别一组候选对象，如果数据用于确定沿着第一轴的每个候选物体的候选位置; 然而，候选对象的集合可以包括假对象。 通过在与沿着第一轴的每个候选位置相对应的位置处沿着该组数据的第二轴执行数据的十字1D分析来修剪候选对象集合，以从该组中选择一组最可能的候选对象 候选对象。
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公开(公告)号：US20160066890A1
公开(公告)日：2016-03-10
申请号：US14944759
申请日：2015-11-18
Applicant: Texas Instruments Incorporated
Inventor： Udayan Dasgupta , David P. Magee , Murtaza Ali
CPC classification number: G01S15/8981 , A61B8/06 , A61B8/13 , A61B8/461 , A61B8/488 , A61B8/5207 , G01S7/52095 , G01S15/8979
Abstract: Methods for color Doppler imaging in an ultrasound imaging system are disclosed herein. Ultrasound radio frequency RF data is demodulated using a nested processing loop including an inner loop and an outer loop. A plurality of Wall filter coefficients are fetched from ultrasound imaging system memory in a single memory access cycle. The plurality Wall filter coefficients are applied to a plurality of complex ultrasound data values in a single execution cycle. The Wall filtered ultrasound data are provided to a flow estimator.
Abstract translation: 本文公开了超声成像系统中彩色多普勒成像的方法。 使用包括内环和外环的嵌套处理环来解调超声射频RF数据。 在单个存储器访问周期中，从超声成像系统存储器中获取多个壁滤波器系数。 多个Wall滤波器系数在单个执行周期中被应用于多个复数超声数据值。 将经过滤波的超声波数据提供给流量估计器。
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公开(公告)号：US20160018511A1
公开(公告)日：2016-01-21
申请号：US14633647
申请日：2015-02-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Jasbir Singh Nayyar , Brian Paul Ginsburg , Sudipto Bose , Murtaza Ali
CPC classification number: G01S7/03 , G01S7/352 , G01S13/343 , G01S13/42 , G01S13/87 , G01S13/878 , G01S13/931 , G01S2007/356
Abstract: A cascaded radar system is provided that includes a first radar system-on-a-chip (SOC) operable to perform an initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels of the radar SOC, a second radar SOC operable to perform the initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels in the radar SOC, and a processing unit coupled to the first radar SOC and the second radar SOC to receive results of the initial portion of signal processing from each radar SOC, the processing unit operable to perform a remaining portion of the signal processing for object detection using these results.
Abstract translation: 提供了一种级联雷达系统，其包括第一雷达系统芯片（SOC），其可操作以执行信号处理的初始部分，用于由雷达SOC的多个接收通道产生的数字差拍信号上的物体检测;第二雷达 SOC，用于对由雷达SOC中的多个接收信道产生的数字差拍信号执行对象检测的信号处理的初始部分，以及耦合到第一雷达SOC和第二雷达SOC的处理单元，以接收初始部分的结果 来自每个雷达SOC的信号处理，处理单元可操作以使用这些结果执行用于对象检测的信号处理的剩余部分。
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