Publikační činnost akademických pracovníků FEI / FEI Research Outputshttps://hdl.handle.net/10195/345392019-07-21T13:33:11Z2019-07-21T13:33:11ZError Behavior of the Nystrom Method With Singularity Subtraction Applied To a Singular Fredholm Integral Equation of the Second KindRak, Josefhttps://hdl.handle.net/10195/729272019-05-22T08:53:48Z2018-01-01T00:00:00ZError Behavior of the Nystrom Method With Singularity Subtraction Applied To a Singular Fredholm Integral Equation of the Second Kind
Rak, Josef
This paper describes one method for a numerical solution of a Fredholm integral equation of the second kind. The kernel function has a special type of singularity called the diagonal one. The main result of this paper is the error estimation of the numerical solution based on the Nystrom method with singularity subtraction. The error estimate is compared to numerical examples. The error behavior and computing time of the Nytrom method is compared with alternative method.
2018-01-01T00:00:00ZSpatial Lag Model for Apartment Prices in Pardubice RegionPozdílková, AlenaMarek, Jaroslavhttps://hdl.handle.net/10195/729242019-05-22T08:53:29Z2018-01-01T00:00:00ZSpatial Lag Model for Apartment Prices in Pardubice Region
Pozdílková, Alena; Marek, Jaroslav
The article is devoted to modelling the relationship of apartment prices between neighbouring small municipalities within Pardubice region. A spatial lag model will be used for the calculation, and the unknown parameters will be estimated using the least squares method. This model is often used to describe geo-informational phenomena.
2018-01-01T00:00:00ZThe Certain Possibility of Compensation of the Frequency Response of a LP S-K Biquad Based on the Signal Flow GraphBrtník, BohumilMatoušek, Davidhttps://hdl.handle.net/10195/729152019-05-22T08:52:29Z2018-01-01T00:00:00ZThe Certain Possibility of Compensation of the Frequency Response of a LP S-K Biquad Based on the Signal Flow Graph
Brtník, Bohumil; Matoušek, David
The Sallen-Key low-pass filter structures of the even orders have one general problem. This problem is a decreasing of the attenuation at high frequencies. This denoted decreasing of the attenuation is typical for the filters of the even orders only. Therefore, this ineligible frequency response is typical for the filters assembled exclusively from biquads. The reasons for this effect are explained in this paper and then verified by simulations. The Sallen-Key filter with fully differential i/o amplifier is a structure that eliminates decreasing of the attenuation at high frequencies. Firstly, this circuit solution is used as a reference circuit. Secondary, a structure that does not have this property is designed based on the signal flow graph. The resulted frequency response of this proposed structure is verified by computer simulation. These simulations were performed by MicroCap version 11.
2018-01-01T00:00:00ZComparison of the Methods of Graphical Solution of Symbolic SensitivityBrtník, BohumilMatoušek, Davidhttps://hdl.handle.net/10195/729142019-05-22T08:52:22Z2018-01-01T00:00:00ZComparison of the Methods of Graphical Solution of Symbolic Sensitivity
Brtník, Bohumil; Matoušek, David
Signal-flow graph (SFG) technique is a very useful tool for a hand analysis of a small and medium-size networks and/or subnetworks of large systems. Last days, the SFG's have been effectively used for the sensitivity solutions, too. This paper describes the comparison between two graph methods for derivation transfer function: the nullor modified Coates flow graph symbolic analysis and the transformation graphs for symbolic analysis. As is given, in some cases the transformation graphs are more useful thanks to their clarity than standard solving methods.
2018-01-01T00:00:00Z