Wideband acoustic positioning with precision calibration and joint parameter estimation

An acoustic and position-referring technology, applied in various systems such as positioning, reradiation of sound waves, and orientation, can solve problems such as the inability of acoustic methods to fully develop their potential

Pending Publication Date: 2020-04-17
SKYWORKS SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, despite these advantages, acoustic methods still fall short of their full potential

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  • Wideband acoustic positioning with precision calibration and joint parameter estimation
  • Wideband acoustic positioning with precision calibration and joint parameter estimation
  • Wideband acoustic positioning with precision calibration and joint parameter estimation

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[0039] Introduction

[0040] As used in this application and the claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Additionally, the term "comprises" means "includes". Furthermore, the term "coupled" does not exclude the presence of intermediate elements between the coupled items.

[0041]The systems, devices and methods described herein should not be construed as limiting in any way. Rather, the present disclosure is directed to all novel and non-obvious features and aspects of the various disclosed embodiments individually and in various combinations and subcombinations with each other. The disclosed systems, methods and apparatus are not limited to any specific aspect or feature or combination thereof, nor do the disclosed systems, methods and apparatus require the existence of any one or more specific advantages or problems to be solved. Any theories of operation are presented for convenience of explan...

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Abstract

A system includes at least one processor and at least one memory storing program instructions that, when executed by the at least one processor, cause the system to send an acoustic ranging transmitter signal between a plurality of calibration reference positions and at least one anchor point, receive an acoustic ranging receiver signal associated with the acoustic ranging transmitter signal and with distances between the plurality of calibration reference positions and the at least one anchor point, and estimate a speed of sound based on the acoustic ranging receiver signal.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 484,278, filed April 11, 2017, the entire contents of which are hereby incorporated by reference. technical field [0003] This field deals with acoustic localization and calibration. Background technique [0004] Indoor positioning has a variety of applications, including those that require positioning accuracy better than millimeters. Estimation of the position of a set of one or more points can be used to determine the shape and orientation of an object, which can be used, among other things, in clinical research in kinesiology, virtual reality, assisted reality, fine gesture control, and the entertainment industry motion capture. Advances in sensor technology, wireless connectivity, and low-power computing have enabled widespread deployment of such positioning instruments. [0005] A review of the latest publications [1]-[3] in the field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/30G01S15/02
CPCG01S5/18G01S5/22G01S5/30G01S3/8003
Inventor A.库玛尔J.麦克纳梅斯
Owner SKYWORKS SOLUTIONS INC
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