In this brief note we present two new parameter identifiers whose estimates converge in finite time under weak interval excitation assumptions. The main novelty is that, in contrast with other finite-convergence time (FCT) estimators, our schemes preserve the FCT property when the parameters change. The previous versions of our FCT estimators can track the parameter variations only asymptotically. Continuous-time and discrete-time versions of the new estimators are presented

翻译：在本简短说明中,我们提出了两个新的参数识别符号,其估计值在短短的间隔引力假设下以有限的时间在有限的时间内汇合。主要的新颖之处是,与其他有限的聚合时间估计器(FCT)不同的是,我们的计划在参数变化时保留了FCT属性。我们以前的FCT估计器只能不时跟踪参数的变化。