Josef Casar

Simplification of missile effective coverage zone in air defence simulations

Military modelling and simulation plays a key role in troops training as well as in verification of military scenarios. Most of topics in the modelling of military performance were already successfully implemented into the simulators (like troops moving, fighting, aircraft simulation, etc.) however the simulation of surface (ground) based air defence systems capabilities are not fully developed now. For last five years, Department of Air Defence Systems, University of Defence Brno, has been experimenting with different approaches to modelling of missile systems firing capabilities. This paper is based on one approach how to simulate these capabilities and deals with the simplification of missile systems effective coverage zones for the easier implementation into the military simulators.

Multi-agent system as operational center support

Civilian or military operational centers are typical for their specific set of activities according to solved problems. Operational personnel have to perform procedural as well as positive kind of control of its controlled entities. To help these personnel with their decisions, we propose to build an automated system based on knowledge structure. This paper deals with procedural reasoning multi agent system designed to take over certain kind of task at operational center like firefighting operational center or military air operations center.

Utilization of optimization methods cooperation for the improvement of optimization process

The article deals with the proposal of new methods combinations that are designed to solve general optimization problems. These methods tackle the problems without constraints and therefore can be utilized in most fields of human activity. Issues dealing with solution of optimization problems that are focused especially on three basic optimization algorithms are presented and theoretically analyzed in this paper. An important part is the description of the parameters that have a significant influence on the process of finding extremes. The attention is also paid to the basic optimization methods and to inclusion of different methods into the overall concept of optimization. As a result, there are proposed algorithms that solve the cooperation of optimization methods. The optimization process improvements reached by using newly developed composite methods is proved by comparing achieved values obtained from series of tests with the values of the basic versions of used algorithms.

Evaluation Methodology and Measurement of Physiological Data to Determine Operational Preparedness of Air Defense Staff: Preliminary Results

The aim of the article is to introduce new evaluation methodology to determine operational preparedness of air defense staff based on measurement of physiological data. The individuals working with air defense systems are under very high level of stress and long‐term monotone air picture observation workload during the mission. We designed an experiment and a method of measuring the biomedical signals for monitoring the actual operator condition during long‐term work on air picture simulator that shows real‐time aircraft flight information. Long‐term monitoring and recording of potential airborne targets in the area of interest to which operators are subjected is accompanied by monitoring the physiological data such as heart rate, body temperature, movement activity and perspiration intensity of operators. The proposed methodology and measurements were tested on four air defense system operators of the Army of the Czech Republic. Operators took part in a 4‐h intensive measurement without any break and their training was evaluated. Designed methods could help to monitor, on the base of physiological data and data from simulators, the stress load level and operational preparedness.

P 160 - Non-linear analysis of trunk movement of air defense staff: Pilot study

Measurements of acceleration of a persons body segment by wearable MoCap system is one of the most important tool to investigate a movement activity. However, the aim of our study is to assess the ability of the trunk movement activity assessment by non-linear method to identify and differences in traffic density and hours of shift work. Poincaré plot with five minute intervals in four hour length data was used to calculate the standard deviations SD1 and SD2. Also, air traffic density with five minute intervals in four hour length data was calculated. The results show that SD1 reflects the short-term variability, and SD2 reflects both short-term and long-term variability. The statistically significant differences found on SD1 values of different hours is the most important finding and indicates that the short-term variability of trunk movement activity is changing during hours of shift work. On the other hand, the traffic density does not have influence on SD. An explanation for this is that motion activity does not change with higher workload, but longer work activity does. Therefore, these findings and the proposed method can be used to optimize the duration of work shifts and working breaks of Air Defense Staff members.

Operational Scenario Modelling Supporting Unmanned Autonomous Systems Concept Development

There exists a connection between a growing number of Unmanned Autonomous Systems (UAxS) and a number of possible security challenges. The likelihood that swarms of UAxS will be employed in high populated mega-city environments in the long and mid-term exacerbates these future challenges. The problem is two-fold: UAxS are likely to be used as additional capability for friendly forces, but they are also to be considered as possible threat. The challenges that an autonomous system poses depend not only on their physical vulnerability or the security of the networks and data, but also on the interaction with traditional troops and operating procedures to be followed, their levels of autonomy and Command and Control (C2) chain behind their employment. An extensive experimentation is necessary to address some of these challenges in a Concept Development and Experimentation (CD&E) process aimed to envision solutions. Modelling and Simulation (M&S) tools and architecture are essential to speed up this process in a cost effective way. This paper presents how the development of a particular air operational scenario in an urban environment, according to the Simulation Interoperability Standard Organization (SISO) guide using M&S tools, can support the capability development process for future UAxS as well as their countermeasures.

Application of Tactical Data Links from perspective of Federated Mission Networking concept: In line with Spiral 2 of the concept

The article is focused on analysis of Tactical Data Links deployment within the Czech Armed Forces according to a Federated Mission Networking (FMN) Spiral 2 Specification based on its candidate draft meant for endorsement by the FMN Management Group by the end of 2017. At the beginning the article briefly describes the Tactical Data Links and FMN concept itself. Then, in line with purpose of the FMN concept, a hypothesis presuming that application of FMN Spiral 2 could be a solution to eliminate persisting weak points in TDL area within the Czech Armed Forces is stated. Following part describes TDL from FMN concept perspective in detail. Main part is dedicated to its analysis and evaluation regarding the current situation within the Czech Armed Forces. Based on evaluation the hypothesis is assessed. Subsequently there are suggested solutions to ameliorate the current situation that are based on other FMN Instructions, own experience and contemporary projects to fulfill requirements of the Czech Armed Forces. The article is concluded with proposed procedure.

Mobile phone optical sensor usage for navigation tasks

The article deals with algorithm design for object detection and identification using common mobile phone optical sensor. Final algorithm was implemented into the robotic device for visual navigation. Mobile phone platform is based on Android operating system. Several measurements were realised for evaluation of accuracy of object detection depending on different distances. Article includes the description of the process of getting the real object dimension parameters and the calculation of the measurement uncertainty of the dimensions.

Manipulating mechanism of sensors of wheeled chassis

The article deals with the proposal of manipulating mechanism device for adjustment of set of sensors designed for controlling the movement of wheeled chassis. There is a proposal of kinematic chain of the mechanism, the calculation of movement kinematics and the proposal of mechanism prototype. For solving the kinematic variables, the matrix method of calculation is used, with the help of Matlab.