Review of electromagnetic waves-based distance measurement technologies for remote monitoring of civil engineering structures

Yiming Liu, Yi Bao

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Measuring distance is essential for health monitoring and condition assessment of civil engineering structures. This paper reviews recent advances in remote sensing technologies for measuring distance based on electromagnetic waves. Specifically, four families of technologies are reviewed, which are the Global Navigation Satellite Systems, microwave radars, laser-based methods, and vision-based methods. The reviewed content covers the measurement principles, signal processing methods, state-of-the-art applications, and key performance metrics. The investigated performance includes the measurement accuracy, sampling frequency, operating distance, robustness to the environment, and compatibility with autonomous platforms. Existing inconsistent viewpoints concerning the performance are discussed. Based on the features of different technologies, a decision tree is presented to facilitate selection of appropriate methods for intended applications. This research is expected to promote development and applications of remote sensing technologies for facilitating condition assessment of engineering structures.

Original languageEnglish
Article number109193
JournalMeasurement: Journal of the International Measurement Confederation
Volume176
DOIs
StatePublished - May 2021

Keywords

  • Computer vision
  • Condition assessment
  • Electromagnetic wave
  • Global navigation satellite system
  • Laser-based measurement
  • Microwave radar
  • Remote sensing

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