System identification and filtering using pseudo random binary inputs

Tamal Bose, Somenath Mitra

Research output: Contribution to journalArticle

3 Scopus citations


The problem of identifying the impulse response of an unknown system is investigated when the input is restricted to a pseudo random binary sequence (PRBS). The well-known methods, such as the Least Mean Square (LMS) and the Recursive Least Square (RLS) algorithms, are studied for system modeling with a PRBS input and the results are compared. It is shown that post-processing the impulse response with a suitable filter may lead to even better identification. A new post-processing filter, namely, the Med-Mean (MM) filter, is proposed which smoothes the baseline noise of the identified impulse response while preserving the edges.

Original languageEnglish (US)
Pages (from-to)765-774
Number of pages10
JournalJournal of the Franklin Institute
Issue number4
Publication statusPublished - 1992
Externally publishedYes


ASJC Scopus subject areas

  • Signal Processing
  • Information Systems and Management
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics
  • Control and Optimization
  • Modeling and Simulation

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