103 research outputs found
Improved Transients in Multiple Frequencies Estimation via Dynamic Regressor Extension and Mixing
A problem of performance enhancement for multiple frequencies estimation is
studied. First, we consider a basic gradient-based estimation approach with
global exponential convergence. Next, we apply dynamic regressor extension and
mixing technique to improve transient performance of the basic approach and
ensure non-strict monotonicity of estimation errors. Simulation results
illustrate benefits of the proposed solution.Comment: This paper is submitted for the ALCOSP 2016 conferenc
Adaptive observer for a LTV system with partially unknown state matrix and delayed measurements
Problem of adaptive state observer synthesis for linear time-varying (LTV)
system with unknown time-varying parameter and delayed output measurements is
considered. State observation problem has attracted the attention of many
researchers . In this paper the results proposed in the , ,
are developed. It is supposed that the state matrix can be represented
as sum of known and unknown parts. Output vector is measured with known
constant delay. An adaptive identification algorithm which reconstructs unknown
state and unknown time varying parameter is proposed.Comment: 6 pages, 10 figure
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