1.

Technical Paper
Technical Paper
1. A Comparison of Polynomial & Rational NARMAX Models for Nonlinear System Identification
Zhu, Q.M. ; Billings, S.A.
Pub. info.: NASA Technical Reports.  pp.1-25,  1992.  National Aeronautics and Space Adminstration
2.

Technical Paper
Technical Paper
2. Paramente Estimation for stochastic Nonlinear Rational Models
Zhu, Q.M. ; Billings, S.A.
Pub. info.: NASA Technical Reports.  pp.1-34,  1991.  National Aeronautics and Space Adminstration
3.

Technical Paper
Technical Paper
3. Recursive Parameter Estimation for Nonlinear Rational Models
Zhu, Q.M. ; Billings, S.A.
Pub. info.: NASA Technical Reports.  pp.1-25,  1991.  National Aeronautics and Space Adminstration
4.

Technical Paper
Technical Paper
4. Rational Model Identification Using an Extended Least Squares Algorithm
Billings, S.A. ; Zhu, Q.M.
Pub. info.: NASA Technical Reports.  pp.1-22,  1990.  National Aeronautics and Space Adminstration
5.

Technical Paper
Technical Paper
5. Approximation to Nonlinear Equations Using Nonlinear Rational Models
Zhu, Q.M. ; Billings, S.A.
Pub. info.: NASA Technical Reports.  pp.1-24,  1992.  National Aeronautics and Space Adminstration