Fuzzy processing method of high-precision ranging radar based on modulation pulse sequence

A technology of ranging radar and pulse sequence, applied in the field of communication, can solve the problems of affecting the target positioning resolution, unable to obtain better positioning accuracy, etc., and achieve the effect of easy upgrade

Inactive Publication Date: 2010-03-10
BEIJING UNIV OF POSTS & TELECOMM
View PDF0 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the step-by-step frequency modulation measurement method will produce a fuzzy distance within a certain range, and the size of the distance is related to the specific frequency modulation step size
Moreover, the...

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
  • Fuzzy processing method of high-precision ranging radar based on modulation pulse sequence
  • Fuzzy processing method of high-precision ranging radar based on modulation pulse sequence
  • Fuzzy processing method of high-precision ranging radar based on modulation pulse sequence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] figure 1 A simplified block diagram of a superheterodyne receiver radar system is schematically shown. The repetitive narrow-pulse radar signal sequence generated by the transmitter is radiated into space by the radar transmitting antenna, and the transceiver switch completes the transmission and reception through time division multiplexing between the transmitting antenna and the receiving antenna. Space reflector target interception will scatter a part of the radar signal radiated on it, and a small amount of signal returns along the direction of the radar to form a radar echo signal, which is amplified by the receiver. In the receiving system, as shown in the figure, 101 is a signal splitter, which is used to divide the signal into two, and input two paths for processing at the same time, which are I (In the phase, referred to as the same phas...

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 relates to the field of communication. The embodiment of the invention discloses a fuzzy processing method of a high-precision ranging radar based on a modulation pulse sequence. The method comprises a resolution determining method of a frequency conversion probe sequence with variable impulse width, a fuzzy problem processing method in a radar impulse sequence, a multipath interference eliminating method in a ranging radar receiver, a non-fuzzy high-precision positioning process of an adjustable variable pulse sequence and a superheterodyne receiving system with high-precision fuzzy eliminating. Non-fuzzy high-precision positioning with long distance can be completed by adjusting the detecting sequence of radar signal and upgrading a signal processing software of the radar receiver according to the method of the invention, the signal processing software of the prior system is easy to be updated, the expansibility is better, and the cost is relatively low. The invention can solve the contradiction of fuzzy distance measured by the radar and target detection resolution, and provides the complete implementation process for measuring the adjustable variable pulse sequence at the same time.

Description

technical field [0001] The invention relates to the communication field, in particular to a fuzzy processing method for a high-precision ranging radar based on a modulated pulse sequence. Background technique [0002] Radar is a radio device that uses radio waves to determine the position of objects. Electromagnetic waves are the same as sound waves. According to the echo signals of obstacles encountered, the radar receiver determines the size and movement characteristics of the target, and uses the electromagnetic wave reflection characteristics to achieve distance. Target measurement, etc. The shorter the working wavelength of the electromagnetic wave, the more obvious its particle nature, the better the linearity of propagation, and the stronger the reflection performance. Conversely, the longer the working wavelength of the radar, the more obvious its fluctuation and the more obvious the diffraction effect. Usually, radar uses radio waves in the microwave band. In rece...

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): G01S7/28G01S7/41
Inventor 李彬黄善国谭代炜罗沛郭秉礼顾畹仪
Owner BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap