Unlock instant, AI-driven research and patent intelligence for your innovation.

A positioning and timing method based on non-spread spectrum wireless communication system

A wireless communication system and spread spectrum technology, which is applied in the fields of communication, navigation, and time frequency, can solve the problems of positioning and timing in non-spread spectrum wireless communication systems, and achieve the effects of easy implementation, less hardware changes, and a wide range of applications

Active Publication Date: 2021-04-20
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose an effective positioning and timing method for non-spread spectrum communication systems, which can solve the problem of positioning and timing in non-spread spectrum wireless communication systems

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
  • A positioning and timing method based on non-spread spectrum wireless communication system
  • A positioning and timing method based on non-spread spectrum wireless communication system
  • A positioning and timing method based on non-spread spectrum wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Attached below Figure 1~4 The present invention is described in further detail.

[0037] The spread spectrum system can use the correlation of the pseudo-code to measure, and has high precision. The invention aims to solve the measurement problem of the non-spread spectrum communication system. Most of the existing communication equipment can improve the time synchronization accuracy of the non-spread spectrum communication system under the premise of making limited changes, so that the communication system has a certain positioning and timing capability.

[0038] A positioning and timing method based on a non-spread spectrum communication system, the specific process of which is as follows:

[0039] figure 1 It is a working schematic diagram of the method of the present invention. The workflow of the inventive method is as follows:

[0040] (1) Both communication parties establish a communication link, and node B sends a request measurement signal to node A; two n...

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 positioning and timing method based on a non-spread spectrum wireless communication system. This method combines the characteristics of the non-spread spectrum communication system, adopts two-way measurement technology, and uses the MAC layer loading time stamp technology when the signal is sent, and uses high-frequency sampling device and interpolation filter technology when the signal is received, combined with a high stability clock source Realize the distance measurement and time synchronization between the communication parties. On this basis, relative / absolute positioning is realized by using multi-reference node positioning technology. Finally, the measurement problem of the non-spread-spectrum wireless communication system is solved, and the positioning and timing of the non-spread-spectrum wireless communication system is realized.

Description

technical field [0001] The invention relates to the fields of communication, navigation, time frequency and the like, in particular to the problem of positioning and timing based on a non-spread spectrum communication system. Background technique [0002] Since the application of the GPS system, the positioning and timing technology based on the satellite navigation system has been widely used. However, the level of the satellite navigation signal reaching the ground is low, and it is easily blocked by buildings, etc., which affects the positioning and timing effect. For example, in a valley, inside a building, etc., the satellite navigation system is almost unusable. Our country has built a variety of communication systems in the military and civilian fields, with strong signal anti-jamming and blocking capabilities and wide coverage. Therefore, research on positioning and timing methods based on communication systems has attracted more and more attention from scholars. ...

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): H04W56/00H04W4/02H04W64/00
CPCH04W4/02H04W56/00H04W56/001H04W64/00
Inventor 树玉泉蔚保国郑晓冬魏海涛鲍亚川肖遥刘轶龙
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP