Synchronization wireless difference frequency ranging device and method

A phase ranging and wireless receiving device technology, applied in the field of wireless ranging, can solve the problems that the carrier signal cannot extract the phase information, the asynchronous receiving scheme cannot obtain the phase information, etc., and achieve the effect of millimeter-level ranging accuracy

Inactive Publication Date: 2018-02-09
南京索尔维电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Asynchronous reception scheme cannot get usable phase information
In addition, the existing wireless ranging technology directly uses the information carried by single or multiple carrier frequencies
Regardless of whether the receiver is synchronous or asynchronous, a single-frequency carrier signal cannot extract usable phase information

Method used

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  • Synchronization wireless difference frequency ranging device and method
  • Synchronization wireless difference frequency ranging device and method
  • Synchronization wireless difference frequency ranging device and method

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Embodiment Construction

[0040] The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0041] like Figures 1 to 3 As shown, the embodiment of the present invention provides a synchronous wireless difference frequency phase ranging device, the device includes a wireless transmitting device and a wireless receiving device, the wireless signal transmitting device includes a clock circuit 1, a first wireless transmitting circuit 2 and a second wireless Transmitting circuit 3, clock circuit 1 is connected with the first wireless transmitting circuit 2 and the second wireless transmitting circuit 3 respectively, for synchronizing the clock of the first wireless transmitting cir...

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PUM

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Abstract

The invention discloses a synchronization wireless difference frequency ranging device and method. The device includes a wireless transmission device and a wireless receiving device. The wireless transmission device includes a clock circuit, a first wireless transmission circuit and a second wireless transmission circuit. The first wireless transmission circuit and the second wireless transmissioncircuit are used for transmitting two wireless signals of different frequencies. The wireless receiving device includes a first wireless receiving circuit, a second wireless receiving circuit, a phase difference calculator, a clock synchronizing unit, a first down converter and a second down converter. The clock synchronizing unit synchronizes clock signals of the wireless transmitting circuits and the wireless receiving circuits. The phase difference calculator is used for calculating the phase difference of the two wireless signals. According to the invention, ranging is performed accordingto phase information of difference frequency of different carrier waves. The ranging precision can be adjusted through changing the carrier wave frequency, so that millimeter level ranging precisioncan be achieved easily.

Description

technical field [0001] The invention relates to the field of wireless distance measurement, in particular to a synchronous wireless frequency difference phase distance measurement device and method. Background technique [0002] Radio ranging is a ranging method based on electromagnetic wave application technology. Radio ranging is to measure distance by radio, which is one of the basic tasks of radio positioning. [0003] The clocks of the existing wireless ranging are asynchronous, and the clocks of the receiver and the transmitter are not synchronized. Asynchronous reception schemes do not have usable phase information. In addition, existing wireless ranging technologies directly use information carried by a single or multiple carrier frequencies. Regardless of whether the receiver is synchronous or asynchronous, a single-frequency carrier signal cannot extract usable phase information. Contents of the invention [0004] The purpose of the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/32
CPCG01S13/32
Inventor 吕俊文
Owner 南京索尔维电子科技有限公司
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