公开(公告)号：US20170074974A1

公开(公告)日：2017-03-16

申请号：US14855057

申请日：2015-09-15

Applicant: Texas Instruments Incorporated

Inventor： Sandeep RAO ,  Karthik RAMASUBRAMANIAN

IPC: G01S7/35 ,  G01S13/42 ,  G01S13/89

CPC classification number: G01S7/352 ,  G01S13/42 ,  G01S13/584 ,  G01S13/588 ,  G01S13/89 ,  G01S13/931 ,  G01S2007/356 ,  G01S2013/9332

Abstract: The disclosure provides a radar apparatus. The radar apparatus includes a transmitter that transmits a first chirp. The first chirp is scattered by one or more obstacles to generate a first plurality of scattered signals. A plurality of receivers receives the first plurality of scattered signals. Each receiver of the plurality of receivers generates a digital signal in response to a scattered signal of the first plurality of scattered signals. A processor is coupled to the plurality of receivers and receives the digital signals from the plurality of receivers. The processor performs range FFT (fast fourier transform) and angle FFT on the digital signals received from the plurality of receivers to generate a first matrix of complex samples.

Abstract translation: 本公开提供了一种雷达装置。 雷达装置包括发射第一啁啾的发射机。 第一啁啾被一个或多个障碍物分散以产生第一多个散射信号。 多个接收器接收第一多个散射信号。 多个接收机中的每个接收机响应于第一多个散射信号的散射信号产生数字信号。 处理器耦合到多个接收器并从多个接收器接收数字信号。 处理器对从多个接收机接收的数字信号执行范围FFT（快速傅立叶变换）和角度FFT，以产生第一复杂样本矩阵。