Cirka, L., Fikar, M.: Identification tool for Simulink. 
Department of Process Control, FCT STU, Technical Report KAMF9803, 1998.
The recursive parameter estimation algorithm LDDIF has been recoded for SIMULINK. Additional blocks are defined as: continuous and discrete time filters to construct delayed (differentiated) variables needed as input to LDDIF, blocks for continuous and discrete identification. Any comments are welcome.
  • Contents of the Toolbox and Installation
  • LDDIF Description
  • Algorithm
  • Implementation
  • Tutorial
  • Discrete-time case
  • Continuous-time case
  • Reference Guide
  • LDDIF
  • C-filter
  • D-filter
  • C-ident
  • D-ident

    • History

  • Version 1 has been coded in 1998 and its manual finally written 5.11.1998
  • Version 1.1, 20.1.1999: In MATLAB 5, two LDDIF blocks in paralel caused problems due to the covariance matrix as both were fed to the block id_kovar. In this version, covariance matrix is an output of LDDIF directly. Therefore, the blocks depending on LDDIF have been changed. As a consequence, slight incompatibility between versions exists.  Known problem: Help button in MATLAB 5 does not work properly.
  • Version 2.0, 10.1.2000. Several small enhancements.
  • Version 3.0, 30.3.2004. Internal reorganisation, MATLAB 6.5, 7.

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