제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Performance Evaluation of JADE-MUSIC Estimation for Indoor Environment

  • Satayarak, Peangduen (Department of Information Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang) ;
  • Rawiwan, Panarat (Department of Information Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang) ;
  • Chamchoy, Monchai (Department of Information Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang) ;
  • Supanakoon, Pichaya (Department of Information Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang) ;
  • Tangtisanon, Prakit (Department of Information Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang)
  • Published : 2003.10.22
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Abstract

In this paper, the performance evaluation of the JADE-MUSIC estimation based on the indoor channel is presented. By means of the JADE-MUSIC algorithm, DOA and time delay can be obtained simultaneously. In the JADE-MUSIC method, the channel impulse response is first estimated from the received samples and then this impulse response is employed to estimate DOAs and time delays of multipath waves. Moreover, according to the JADE-MUSIC characteristics, it can work in cases when the number of impinging waves is more than the number of antenna elements, unlike the traditional parametric subspace-based method, such a case is not true. Therefore, we employ the JADE-MUSIC algorithm applying for the real indoor environment where is rich of the multipath propagation waves and can imply that the number of waves is very possibly higher than that of the array element. The experiment is carried out in our laboratory considered to be the real indoor environment. The performance of the JADE-MUSIC algorithm is evaluated in terms of the comparison between the simulation and experiment results by using the simulated channel model and the real indoor channel model, respectively. It is clear that the joint angle and delay estimation using the simulated channel model are in good agreement with the estimation using the real indoor channel model. Therefore, we can say that the JADE-MUSIC algorithm accomplishes the high performance to jointly estimate the angle and delay of the arriving signal for the indoor environment.

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