Identification > Identifiability

The questions of identifiability of blood circulation system arise under solution of diagnostic problems with the use of mathematical models and under control of units of artificial and accessory blood circulation.

Identifiablity is a problem of definition a priori, whether the identificational experiment can give full information about all unknown parameters of mathematical model of prototype system.

Without giving strict mathematical definitions here, we note, that the dynamic system is named identifiable if on basis of observations of its output it is possible to unambiguously define all its unknown parameters .

The question of identifiability is closely connected with the problem of construction of measuring system on the blood circulation system, i. e. what and when to measure to receive full information about prototype system, that helps to unambiguously solve the problem of identification.

Theoretical problems of system identifiability of a blood circulation are set up in article [20]. In this article a findings of investigation of identifiability of the elementary model of system of a circulation of the considered class-room is yielded. In this job the impossibility of practical implementation of complete, that is enabling the unequivocal definition of arguments all without exception, an instrumentation system is displayed. For example, from practical reasons obviously, that direct instrumental gaugings of volumes of blood in the vascular bed stray patches, identifiabilities [20] required by conditions to execute it is impossible. The carried out probes of more difficult working mathematical model display, that for it also is impossible to realise a complete set of gaugings. In the conditions of ambiguity naturally there is a problem on modes of exposition of flock of task solutions of identification and on what helpful information on the object can be extracted, if such exposition is received by any mode.