公开(公告)号：US09541637B2

公开(公告)日：2017-01-10

申请号：US14445569

申请日：2014-07-29

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： James F Searcy ,  Stephen W. Alland

IPC: G01S13/18 ,  G01S13/28 ,  G01S13/34 ,  G01S13/58 ,  G01S13/93 ,  H03M7/30 ,  G01S7/28 ,  G01S7/35

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。