Parallel Track Models from Road Measurements

AKÇAY H., TÜRKAY S.

18th International Carpathian Control Conference (ICCC), Sinaia, Romania, 28 - 31 May 2017, pp.252-257 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/carpathiancc.2017.7970406
  • City: Sinaia
  • Country: Romania
  • Page Numbers: pp.252-257
  • Keywords: road roughness, power spectral density, coherence, parallel tracks, COHERENCE FUNCTION, POWER SPECTRA, ROUGHNESS, IDENTIFICATION, SIMULATION, PROFILES
  • Anadolu University Affiliated: Yes

Abstract

In this paper, coherence function estimation for parallel tracks from road measurements is studied. A two-stage scheme is proposed. In the first stage, the measurements are de-trended and periodic components are removed. An auto regressive moving-average (ARMA) model is fitted in the second stage to the vector-valued residuals derived from the left and right track measurements by using a recently developed spectral estimation algorithm. The ARMA model yields not only the power spectral density (PSD) estimates of the individual tracks, but also the coherence function estimate of the parallel tracks. The proposed model development procedure is tested on the real data from the Long Term Pavement Performance (LTPP) database.