Patent ID: 6859772
Filing Date: 2005-02-22
Classification: G10L

Abstract:
1. A method for providing a reduced order set of parameters associated with a dynamical environment having a plurality of signal sources, the method comprising the steps of: (i) Inverse transforming an initial reduced cost set of discrete time parameters into a reduced cost set of continuous time parameters; (ii) Converting the reduced cost set of continuous time parameters into a balanced converted set of parameters; (iii) Transforming the balanced converted set of parameters into a modified set of discrete time parameters; (iv) Estimating from the modified set of discrete time parameters a reduced cost set of discrete time parameters; (v) Repeating steps (i) to (iv) until the reduced cost set of discrete time parameters provides a rate of change value of a cost function that reaches a pre-determined value; and (vi) Providing the balanced reduced cost set of discrete time parameters from the reduced cost set of discrete time parameters after the rate of change value of the cost function reaches the pre-determined value.