Method and system for determining state parameters of a measured object
A state parameter and determination method technology, applied in radio wave measurement system, measurement device, sound wave re-radiation, etc., can solve the problems of low positioning accuracy of acoustic wave positioning, weak anti-interference ability, low positioning accuracy of pulse acoustic wave, etc.
Active Publication Date: 2020-08-28
TOUCHAIR TECH
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Problems solved by technology
[0003] The electromagnetic wave positioning system (GPS, Bluetooth, wifi, etc.) is not accurate enough, especially in places with complex environments or places where electromagnetic waves cannot cover, it is almost impossible to locate
[0004] Due to the low positioning accuracy of pulse acoustic waves and weak anti-interference ability, and due to the Doppler effect, the positioning accuracy of acoustic positioning is not high
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[0094] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.
[0095] In order to be concise and intuitive in description, the solution of the present invention will be explained by describing several representative embodiments below. A large number of details in the embodiments are only used to help understand the solutions of the present invention. However, it is obvious that the implementation of the technical solution of the present invention may not be limited to these details. In order to avoid unnecessarily obscuring the solution of the present invention, some embodiments are not described in detail, but only a framework is given. Hereinafter, "including" means "including but not limited to", and "according to..." means "at least according to..., but not limited to only according to...". Due to Chinese language habit...
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The invention provides a method and a system for determining the state parameters of a measured object. The method includes the following steps: at an acoustic transmitter, generating an acoustic signal, multiplying the acoustic signal by a spread spectrum pseudo-random code to obtain an acoustic ranging signal, sending out the acoustic ranging signal, and extracting the acoustic characteristic parameters of the acoustic transmitter; at an acoustic receiver, capturing the acoustic ranging signal, and extracting the acoustic characteristic parameters of the acoustic receiver; and detecting thestate parameters of a measured object based on the acoustic characteristic parameters of the acoustic transmitter and the acoustic characteristic parameters of the acoustic receiver. The spread spectrum technology is applied to acoustic measurement, and therefore, the state parameters of the measured object can be measured more accurately.
Description
Technical field [0001] The invention belongs to the technical field of acoustic wave measurement, in particular to a method and system for determining the state parameters of a measured object. Background technique [0002] At present, the systems mainly used for positioning include electromagnetic wave positioning system, acoustic wave positioning system, and light positioning system. [0003] Electromagnetic wave positioning systems (GPS, Bluetooth, wifi, etc.) are not accurate enough, especially in places where the environment is complicated or where electromagnetic waves cannot cover, it is almost impossible to locate. [0004] Due to the low accuracy of pulse acoustic wave positioning and weak anti-interference ability, and due to the Doppler effect, the positioning accuracy of acoustic wave positioning is not high. Summary of the invention [0005] The embodiment of the present invention proposes a method and system for determining the state parameter of the measured object. [...
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IPC IPC(8): G01S15/02G01S15/06G01S15/50
CPCG01S15/02G01S15/06G01S15/50
Inventor 窦新玉
Owner TOUCHAIR TECH