公开(公告)号：US20200081111A1

公开(公告)日：2020-03-12

申请号：US16466335

申请日：2017-10-04

Applicant: NEC Corporation

Inventor： Osamu HOSHUYAMA ,  Kentarou KUDOU ,  Shohei IKEDA

IPC: G01S13/56 ,  G01S13/536

Abstract: The present invention relates to a signal processing device for accurately detecting a moving object without being influenced by the speed of the moving object. This signal processing device is provided with: at least two cross-correlation calculation units for calculating cross-correlation functions for the waveform of a reflection signal obtained through the reflection, by an object, of a transmission signal having a varying frequency and different correlation waveforms generated from the waveform of the transmission signal; a combination unit for combining the at least two cross-correlation functions from the at least two cross-correlation calculation units so as not to be separated in the frequency shift direction; and a detection unit for detecting the object on the basis of the cross-correlation function resulting from the combination.

公开(公告)号：US20200081109A1

公开(公告)日：2020-03-12

申请号：US16494811

申请日：2018-03-23

Applicant: NEC Corporation

Inventor： Osamu HOSHUYAMA ,  Kentarou KUDOU ,  Shohei IKEDA

IPC: G01S13/536 ,  G01S7/35

Abstract: In order to achieve object detection that does not detect an object moving at a speed within a prescribed speed range, the present invention comprises at least two cross-correlation calculation units which each calculate a cross correlation function between a waveform of a reflection signal obtained when a transmission signal having changing frequencies is reflected by a target object, and a different correlation waveform generated from the waveform of the transmission signal, and a synthesis unit that synthesizes at least two cross-correlation functions from at least the two cross-correlation calculation units so as to make detection of a target object moving at a speed within the prescribed speed range less likely, and that outputs the synthesis results to a post-processing unit.

公开(公告)号：US20190187274A1

公开(公告)日：2019-06-20

申请号：US16099471

申请日：2017-05-15

Applicant: NEC CORPORATION

Inventor： Nobuharu KAMI ,  Kentarou KUDOU ,  Shohei IKEDA

IPC: G01S13/89 ,  G01S13/08 ,  G06F1/12 ,  G06F1/14

CPC classification number: G01S13/89 ,  G01S13/08 ,  G06F1/12 ,  G06F1/14 ,  G06F9/46 ,  G06F11/16 ,  G06F13/00 ,  G06F15/173

Abstract: A distributed-cooperative-information-processing device according to the present invention is allocated in a distributed manner within a predetermined field. The device measures an environment by using a sensor device; generates estimate determination information being information indicating a probability of a hypothetical set of states in the environment, based on a measurement result of the environment; receives the estimate determination information generated by another distributed-cooperative-information-processing device within the field; manages information of the another distributed-cooperative-information-processing device; and integrates the estimate determination information generated by own device and the estimate determination information received from the another distributed-cooperative-information-processing device.