Modelling of PT326 Hot Air Blower Trainer Kit Using PRBS Signal and Cross–Correlation Technique

Authors

  • Mohd. Fua’ad Rahmat
  • Keat Hoe Yeoh
  • Sahnius Usman
  • Adem Abdul Wahab

DOI:

https://doi.org/10.11113/jt.v42.749

Abstract

Pengenalpastian sistem merupakan suatu ujikaji untuk menentukan rangkap pindah atau matematik model bagi sesuatu sistem dengan menggunakan isyarat masukan yang sesuai. Dalam kertas kerja penyelidikan ini, pseudorandom binary sequence (PRBS) bagi 5 jujukan maksimum yang berlainan iaitu 15, 31, 63, 127, dan 255 digunakan sebagai isyarat masukan untuk menentukan rangkap pindah sistem bagi keadaan gelung buka dan gelung tutup. Fungsi sekaitan auto bagi isyarat masukan dan sekaitan silang bagi isyarat masukan dan keluaran dilaksanakan dengan menggunakan Dynamic Signal Analyzer (DSA) dan perisian MATLAB. Rangkap pindah kemudiannya ditentukan dari graf sekaitan silang melawan masa lengah dan graf sekaitan auto melawan masa lengah. Kata kunci: Pengenalpastian sistem, pseudorandom binary sequence, sekaitan auto, sekaitan silang, pengesahan model System identification is an experimental approach to determine the transfer function or equivalent mathematical description for the dynamic of system component by using a suitable input signal. A pseudorandom binary sequence (PRBS) signal of 5 different maximum lengths sequence of 15, 31, 63, 127, and 255 has been used as an input signal to determine the open–loop and closed–loop model of a hot air blower system. The autocorrelation of the input signal and cross-correlation between the input and output signal is performed using the Dynamic Signal Analyzer (DSA) and MATLAB software. From the correlograms of cross-correlation and autocorrelation, the transfer function model can be determined. Key words: System identification, pseudorandom binary sequence, autocorrelation

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Published

2012-02-25

Issue

Section

Science and Engineering

How to Cite

Modelling of PT326 Hot Air Blower Trainer Kit Using PRBS Signal and Cross–Correlation Technique . (2012). Jurnal Teknologi (Sciences & Engineering), 42(1), 9–22. https://doi.org/10.11113/jt.v42.749