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Skoda Software for EMS Vehicle Testing

Authors:

Aleš POVALAČ, Jiří DŘÍNOVSKÝ

Type:

software

Date:

2018-12-07

Projects:

SR18857156 ? Studie dynamických zkoušek EMC
LO1401 - Interdisciplinární výzkum bezdrátových technologií (INWITE)

The software automates the validation of electromagnetic susceptibility (EMS) for vehicles. It controls the connected high-frequency devices via GPIB and USB buses, i.e. an RF generator, RF power amplifier, and RF power probes. Depending on the specifications given by the standards, it performs frequency tuning. It supports manual mode for repeated measurement of problematic frequencies and provides a report for EMS verification documentation.


Time Domain Printed Circuit Board Solver (TD-PCBS)

Authors:

Šeděnka, V., Štumpf, M., Kadlec, P.

Type:

software

Date:

2018-11-09

Projects:

GJ17-05445Y - Aplikace časoprostorové reciprocity ve výpočetní elektromagnetické kompatibilitě
LO1401 - Interdisciplinární výzkum bezdrátových technologií (INWITE)
FEKT-S-17-4713 - Mikrovlnné technologie pro budoucí bezdrátové systémy

The Time Domain Printed Circuit Board Solver (TD-PCBS) analyzes multilayer printed circuit boards (power-ground structures) in MATLAB. It uses a hybrid computational method that combines the Time Domain Contour Integral Method (TD-CIM) with the circuit simulator ngspice. The user can define the shape of a structure, excitation and other simulation parameters. TD-CIM computes the voltage responses at ports within each layer. These responses are subsequently used to cast the transfer functions using the Time Domain Vector Fitting (TD-VF). Another program module creates an electric circuit representation using the developed device model which computes the convolution of the transfer function with the electric current. Discrete capacitors model capacitances between port vias and their neighborhood. A KiCad project is created alongside a regular spice source file (*.cir). Users can modify the automatically generated schematics by themselves (i.e. add own parts).


WLAN Physical Layer Simulator

Authors:

Milos, J., Polak, L.

Type:

software

Date:

2018-11-08

Projects:

LTC18021 - Budoucí bezdrátové a radiové komunikační sítě v reálných podmínkách (FEWERCON)

The WLAN Physical Layer Simulator is a universal and flexible simulation tool to provide reproducible evaluation of the IEEE 802.11 signal processing on the physical (PHY) layer level. It allows the user to select among different IEEE 802.11 technologies (e.g. IEEE 802.11n/ac/ah/ax) and different system parameters can be set for the simulation. Type of channel coding and inner modulation, channel bandwidth and the length of guard interval are the most important of them. The simulator also contains different channel models to emulate various conditions in the transmission environment. The WLAN PHY Simulator enables to evaluate dependences of Bit and Frame Error Ratios (BER and FER) and data throughput on the parameter signal-to-noise ratio (SNR). Thanks to the proposed concept, the simulator can be extended by various so called signal modules to create and explore different coexistence scenarios.

These scenarios can be evaluated by the previously mentioned objective parameters (BER and FER). The WLAN Physical Layer Simulator has been developed in the MATLAB and is controlled in the command line. It is distributed under the academic license.

Milos_Polak_WLAN_PHYSIM_r1_01_Nov2018.zip


Antenna Toolbox for MATLAB (AToM)

Authors:

Čapek, M., Adler, V., Kadlec, P., Šeděnka, V., Marek, M., Mašek, M., Losenický, V., Štrambach, M., Hazdra, P.

Type:

software

Date:

2018-01-05

Projects:

TA04010457 - Tools for synthesis of antennas and sensors
LO1401 - Interdisciplinary research of wireless technologies (INWITE)

AToM (Antenna Toolbox for Matlab) is a standalone Matlab program for antenna analysis and synthesis. The toolbox is built from geometry module, mesh generator, boundary conditions setting module, MoM (Method of Moments) frequency domain solvers, module for a computation and classification of characteristic modes and post-processing module. Model variables can be defined parametrically by own Workspace Variables to automatically change the design with a change of a Variable. Software AToM can be controlled via GUI or in batch mode.