KEYWORDS: Sensors, Signal processing, Cameras, Analog electronics, Clocks, Microcontrollers, Information security, Prototyping, Surveillance, Homeland security
A characterization study is made from a trilateration system for impulsive sounds, in which theoretical analysis and experimental results are presented. This system uses an analog trilateration method, avoiding to implement high frequency ADC conversion elements. It also presents the optimization of the chosen array of microphones, thus allowing for a better trilateration algorithm behavior.
KEYWORDS: Prototyping, Databases, Sensors, Consumer electronics, System identification, Digital signal processing, Forensic science, Computer security, Algorithm development, System integration
This work presents a prototype of low-cost gunshots identification system that uses consumer electronics in order to ensure the existence of gunshots and then classify it according to a previously established database. The implementation of this tool in the urban areas is to set records that support the forensics, hence improving law enforcement also on developing countries. An analysis of its effectiveness is presented in comparison with theoretical results obtained with numerical simulations.
A low-cost acoustic localization system is presented, in which a video camera is directed towards the source of impulsive sounds such as gunshots. An analog filter is implemented at the first stage, in order to reduce the range of frequencies to analyze, hence narrowing and improving the localization of gunshots. The system is design for the integration of open source consumer electronics and processing devices, which makes large-scale deployment possible even in developing countries. Furthermore, results are also obtained with a prototype that shows a high percentage of successes.
An analysis of 1-dimensional quantum device is presented by comparing between two possible mathematical methods.
The first is a continuous scheme where both the mass and the potential vary along the Z-axis, while the second one
presents segmentation in three main sections where the mass remains constant along each phase. These analysis where
made with the help of a Computer Algebra Software (CAS) due to its extensive mathematical development. A discussion
about both schemes and its possible applications to photonic devices are presented.
The Battle of the Sexes game is analyzed from quantum game theory using quantum initial states as possible strategies
for two players. Quantum circuits are presented as schemes of development proposing also the use of Yang-Baxter
operators as quantum gates in the circuits. This formalism is implemented using a Computer Algebra Software (CAS)
due to its complex and long mathematical treatment. Payoff matrices of the players are given as the results for each case
shown. Biology and finances applications are also proposed.
The known Hawk and Dove game is analyzed from quantum mechanics with another two possible behaviors, Bully and
Retaliator. The formalism used in the development of the strategies is not Dirac's due to its complex implementation in
Computer Algebra System (CAS) but the matrix analysis is proposed. Both are completely alike in the results given, so
the matrix method used is not less efficient than Dirac's. The classical game with the four strategies is also described and
compared. As results of the quantum game, are presented pay-offs matrixes for possible players, the density matrix and
its relation to quantum information and communication. Applications such as finances and biology are also presented
and proposed.
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