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

Ultra-Wideband Direct Chaotic Velocity and Ranging Radar Device Based on Heterodyne Correlation Method

An ultra-wideband and correlation method technology is applied in the field of ultra-wideband direct chaotic velocity measurement and ranging radar devices to achieve the effects of low power consumption, strong anti-interference ability, and strong anti-multipath fading ability.

Active Publication Date: 2017-05-10
TAIYUAN UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using hardware to achieve direct chaotic radar target ranging has not been reported in the literature

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
  • Ultra-Wideband Direct Chaotic Velocity and Ranging Radar Device Based on Heterodyne Correlation Method
  • Ultra-Wideband Direct Chaotic Velocity and Ranging Radar Device Based on Heterodyne Correlation Method
  • Ultra-Wideband Direct Chaotic Velocity and Ranging Radar Device Based on Heterodyne Correlation Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The chaotic signal (GHz level) generated by the ultra-wideband chaotic signal generator is divided into three in-phase components by a broadband power divider: one is used as a detection signal; the other is mixed with the local oscillator signal (MHz level) generated by the signal generator Ⅰ , as a reference signal I, which is subjected to heterodyne processing with the echo signal; the other is used as a reference signal II, which is subjected to correlation processing with the echo signal. After the received echo signal is amplified by low noise, it is divided into two channels: one channel is subjected to heterodyne processing with the reference signal I, and then input to the I / Q mixer after passing through the band-pass filter and power amplifier, and then enters the data acquisition and processing The unit performs signal acquis...

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 an ultra-wideband direct chaotic speed-measuring and ranging radar device based on a heterodyne correlation method. The ultra-wideband direct chaotic speed-measuring and ranging radar device is characterized in that a chaotic signal generated by a ultra-wideband chaotic generator is directly taken as a radar signal and is divided into three ways of in-phase components by a wideband power splitter, wherein the first way is taken as a detection signal and is transmitted by a broadband ridged horn antenna; the second way is mixed with an intrinsic signal generated by a signal generator and is taken as a reference signal I; the third way is taken as a reference signal II, is directly inputted to a data acquisition and processing unit and is subjected to cross-correlation processing with echo signals. A target scattering signal and a clutter signal are taken as the echo signals to be received by the broadband ridged horn antenna, each of echo signals is divided into two ways of in-phase components; the first way is directly inputted into the data acquisition and processing unit to be subjected to data acquisition and related processing; the second way is subjected to heterodyne processing with the reference signal I and is inputted to an I / Q frequency mixer firstly and then the data acquisition and processing unit to be acquired; the speed information of a target is extracted from an output signal.

Description

technical field [0001] The invention relates to the technical field of radar detection devices, in particular to an ultra-wideband direct chaotic speed-measuring and ranging radar device based on a heterodyne correlation method, which can be applied to remote sensing, investigation and other fields. Background technique [0002] With the rapid development of information technology, radar has become an indispensable tool for modern communication and military support. In the multiple complex interference environment, various applications also put forward higher requirements for radar, namely: high precision, strong anti-interference ability, multi-target tracking, small multi-path interference, good adaptive performance, etc., so it is derived Ultra Wideband Radar. Ultra-wideband radar refers to a radar with an operating bandwidth greater than or equal to 25% of its center frequency. Compared with narrowband radar, UWB radar has the advantages of high transmission rate; good...

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 Patents(China)
IPC IPC(8): G01S13/50G01S13/58
CPCG01S13/582
Inventor 刘丽王冰洁徐航张建国李静霞马瑞霞杨鹏
Owner TAIYUAN UNIV OF TECH
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