Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for adaptively detecting multiple targets by using vehicle-mounted millimeter wave radar

An adaptive detection and millimeter-wave radar technology, applied in radio wave measurement systems, radio wave reflection/re-radiation, measurement devices, etc., can solve the problems of increased false alarm loss, interference target detection, and improved noise levels, etc., to achieve The effect of eliminating shielding effects

Pending Publication Date: 2019-12-20
立晟智能科技(成都)有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional radar adaptive target detection methods include CA-CFAR, GO-CFAR, SO-CFAR, and OS-CFAR. These methods lack the ability to adapt to multi-target environments when identifying effective targets in complex driving environments.
In a multi-target environment, the loss of false alarms increases, and the shielding effect is obvious
[0004] like figure 1 As shown, the traditional radar adaptive target detection methods CA-CFAR, GO-CFAR, SO-CFAR, OS-CFAR, these methods directly perform target detection on one-dimensional or two-dimensional spectrum when detecting targets, and use the The spectrum of the noise is used as the basis for target detection. In this process, if there are multiple targets in the scene, there are targets such as figure 2 As shown, it will significantly increase the noise level, interfere with the detection of the target, and form a shielding effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for adaptively detecting multiple targets by using vehicle-mounted millimeter wave radar
  • Method for adaptively detecting multiple targets by using vehicle-mounted millimeter wave radar
  • Method for adaptively detecting multiple targets by using vehicle-mounted millimeter wave radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The invention discloses a method for adaptively detecting multiple targets with a vehicle-mounted millimeter-wave radar. The method for adaptively detecting multiple targets at least includes the following steps:

[0020] Step S1: Based on the two-dimensional spectrum detected by the radar, use the average method to obtain the noise floor factor.

[0021] Preferably, in the step S1, the noise floor factor can also be obtained by using the ordered statistics method to obtain the noise factor.

[0022] Preferably, in the step S1, the acquisition of the noise floor factor can also obtain the noise factor by using the histogram statistics method.

[0023] Furthermore, in the process of obtaining the noise floor of the two-dimensional spectrum, a segmentation processing method can be combined to divide the distance bands, so that different noise factors can be obtained for different distance bands.

[0024] Step S2: Based on the noise floor factor and the detection threshol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for adaptively detecting multiple targets by using a vehicle-mounted millimeter wave radar. The method for adaptively detecting the multiple targets at least comprisesthe steps of: S1, acquiring a background noise factor through employing an averaging method based on a two-dimensional frequency spectrum detected by means of the radar; S2, removing a strong targetcausing a shielding effect in the two-dimensional frequency spectrum based on the background noise factor and a detection threshold value to obtain a clean background noise frequency spectrum; and S3,performing traditional adaptive target detection based on the background noise frequency spectrum obtained in the step S2, and acquiring target information. The method for adaptively detecting the multiple targets by using the vehicle-mounted millimeter wave radar has the advantages of acquiring the background noise factor at first, then performing target replacement to acquire the background noise frequency spectrum, adaptively detecting the targets based on the background noise frequency spectrum at last, being capable of adapting to a multi-target scene, being capable of effectively resisting the shielding effect in a multi-target environment, and improving the precision of target detection.

Description

technical field [0001] The invention belongs to the field of vehicle-mounted millimeter-wave radars, in particular to a method for self-adaptive detection of multiple targets by vehicle-mounted millimeter-wave radars. Background technique [0002] Due to the advantages of high precision and low price, millimeter-wave radar is more and more widely used in the automotive neighborhood, and will also play an irreplaceable role in the driverless neighborhood. [0003] At present, the application of millimeter wave radar in automobiles is mainly divided into side angle radar and forward radar. In the actual driving process, vehicle millimeter wave radar presents the characteristics of high precision and multiple targets within the effective detection range. Traditional radar adaptive target detection methods include CA-CFAR, GO-CFAR, SO-CFAR, and OS-CFAR. These methods lack the ability to adapt to multi-target environments when performing effective target recognition in complex dr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/93
CPCG01S13/931
Inventor 雷阳
Owner 立晟智能科技(成都)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com