Supercharge Your Innovation With Domain-Expert AI Agents!

An ultra wide band low power radiofrequency signal generator and a method thereof

A technology of signal generator and radio frequency signal, which is applied in the direction of instruments, utilization of re-radiation, reflection/re-radiation of radio waves, etc. It can solve the problems of insufficient DAC sampling rate and large volume of frequency doubling scheme, and achieve high signal quality, The effect of low power consumption and small size

Active Publication Date: 2014-03-26
INST OF ELECTRONICS CHINESE ACAD OF SCI
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the current DAC sampling rate is not high enough and the frequency doubling scheme is large, the invention provides an ultra-wideband low-power radio frequency signal generator

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
  • An ultra wide band low power radiofrequency signal generator and a method thereof
  • An ultra wide band low power radiofrequency signal generator and a method thereof
  • An ultra wide band low power radiofrequency signal generator and a method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments of traffic speed measurement and with reference to the accompanying drawings.

[0035] figure 2 A structural diagram of an ultra-wideband low-power radio frequency signal generator disclosed by the present invention is shown. Such as figure 2 As shown, the generator includes baseband signal source, switch, quadrature modulator and broadband signal synthesizer and other parts. First, the baseband signal source generates N connected two-way orthogonal I and Q signals, and then during the effective period of the first chirp signal, the switch connects the output baseband signal to the first quadrature modulator to realize the connection with the first Quadrature modulation of the radio frequency local oscillator to obtain the first radio frequency signal; during the effe...

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 wide band low power radiofrequency signal generator and a method thereof. The signal-generator comprises a baseband signal source used for generating continuous baseband signals, a switch used for controlling the segmentation of the baseband signals into a plurality of portions in terms of time domain, a quadrature modulator which modulates the baseband signals which have been segmented into the plurality of portions to make the baseband signals become a plurality of radiofrequency signals through the utilization of different radio frequency local oscillators, and a synthesizer used for synthesizing the plurality of radiofrequency signals a channel of ultra wide band low power radiofrequency signals in terms of time domain. The signal-generator is mainly used for a radar exciter.

Description

technical field [0001] The invention relates to the technical field of radar exciters, in particular to a synthetic aperture radar (Synthetic Aperture Radar-SAR) ultra-wideband low-power radio frequency signal generator and a method thereof. Background technique [0002] Exciter is an important part of synthetic aperture radar. It is used to generate the low power radio frequency signal required for the operation of the synthetic aperture radar system. In SAR systems, the range resolution is determined by the bandwidth of the transmitted signal. With the development of technology, users have put forward requirements on the resolution of the synthetic aperture radar system on the order of centimeters, which brings the signal bandwidth of the radar system to several GHz. [0003] The development of large-scale integrated circuit technology has led to the rapid development of high-speed digital-to-analog converter (Digital to Analog Convertor-DAC) and direct digital frequency...

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
IPC IPC(8): G01S7/35
CPCG01S7/35G01S13/90
Inventor 李和平朱建光张建龙贾颖新
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com