A NEW INSTRUMENTAL VARIABLE METHOD —— THE TEST REPEAT INSTRUMENTAL VARIABLE METHOD

In this paper, a new instrumental variable (Ⅳ) method——the Test Repeat Ⅳ (TRIV) method is put forth. This method is applicable to the identification of closed-loop systems. And it is accurate, rapid, simple in algorithm, easy in order determination. Its consistency problem is analyzed and its validity is testified by Monte Carlo simulation experiments.