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Device and method for synchronous wireless difference frequency phase ranging

A technology of phase ranging and wireless transmitting device, which is applied in the field of wireless ranging, and can solve the problems that the phase information cannot be obtained by the asynchronous receiving scheme, and the phase information cannot be extracted by the carrier signal.

Inactive Publication Date: 2021-09-24
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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  • Device and method for synchronous wireless difference frequency phase ranging
  • Device and method for synchronous wireless difference frequency phase ranging
  • Device and method for synchronous wireless difference frequency phase ranging

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Embodiment Construction

[0038] 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.

[0039] Such as 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 ...

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Abstract

The invention discloses a synchronous wireless difference frequency phase ranging device. The device includes a wireless transmitting device and a wireless receiving device. The wireless transmitting device includes a clock circuit, a first wireless transmitting circuit and a second wireless transmitting circuit. The first wireless transmitting circuit and the second wireless transmitting circuit are used to simultaneously transmit two different frequencies. Wireless signal; the wireless receiving device includes a first wireless receiving circuit, a second wireless receiving circuit, a phase difference calculator, a clock synchronization unit, a first down-converter and a second down-converter, and the clock synchronization unit synchronizes the clock signal of the wireless transceiver circuit , the phase difference calculator is used to calculate the phase difference of two wireless signals. According to the distance measurement of phase information of different carrier difference frequencies, the distance measurement precision can be adjusted by changing the carrier frequency, and the millimeter-level distance measurement precision can be easily realized.

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 Patents(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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