公开(公告)号：US20150212198A1

公开(公告)日：2015-07-30

申请号：US14573382

申请日：2014-12-17

Applicant: FUJITSU TEN LIMITED

Inventor： Daisuke NISHIO ,  Masatoshi AOKI

IPC: G01S7/41 ,  G01S13/02

CPC classification number: G01S7/415 ,  G01S13/345 ,  G01S13/42 ,  G01S13/424 ,  G01S13/584 ,  G01S13/931 ,  G01S2013/9353 ,  G01S2013/9375

Abstract: A radar apparatus is installed in a vehicle and receives a reflection wave from a target to derive information about the target. The radar apparatus includes a signal processor to extract a peak signal that is obtained from a difference frequency between a transmission signal whose frequency changes in a prescribed cycle and a reception signal representing reception of a reflection wave that is generated from a transmission wave of the transmission signal reflected by the target, in each of an up period in which the frequency of the transmission signal increases and a down period in which the frequency decreases; and to determine whether a target information derivation environment is good or bad based on a number of the peak signals each of which corresponds to a static object having a plurality of angle information.

Abstract translation: 将雷达装置安装在车辆中并从目标接收反射波以得到关于目标的信息。 雷达装置包括：信号处理器，用于提取从规定周期的频率变化的发送信号与表示从发送的发送波生成的反射波的接收的接收信号之间的差频获得的峰值信号 在传输信号的频率增加的上升周期和频率下降的下降周期的每一个中，由目标反射的信号; 并且基于与具有多个角度信息的静态对象相对应的峰值信号的数量来确定目标信息导出环境是好还是坏。

公开(公告)号：US20170363717A1

公开(公告)日：2017-12-21

申请号：US15602545

申请日：2017-05-23

Applicant: FUJITSU TEN LIMITED

Inventor： Hiroyuki ISHIMORI ,  Daisuke NISHIO

IPC: G01S7/35 ,  G01S13/34 ,  G01S13/93

Abstract: There is provided a radar device. An estimating unit estimates peak signals corresponding to a target in the latest periods of each of UP and DOWN beat sections of a beat signal on the basis of histories of peak signals corresponding to the target in past periods of the UP and DOWN beat sections. A pairing unit extracts peak signals within predetermined ranges defined with reference to the estimate peak signals on the basis of the histories, and pairs the extracted peak signals. In a case where a distance to the target is equal to or shorter than a predetermined value, the pairing unit extracts peak signals corresponding to the target, from a first range which is a predetermined angular range defined with reference to the estimate peak signals, or a second range which is a predetermined transverse position range defined with reference to the estimate peak signals.