Papers by Maurits Wattimena
Journal of Physics: Conference Series, 2018
This paper describes temperature measurement in the multisensor systems based on the radio-freque... more This paper describes temperature measurement in the multisensor systems based on the radio-frequency identification SAW passive tags which are currently applied in the electric power systems and the switchgears. Different approaches of temperature measurement in the collision case are shown here. The study is based on the tag model with specific topology, which allows us to determine temperature through the response signal with time-frequency information. This research considers the collision case for several passive tags as the temperature sensors which are placed in the switchgear. This research proposal is to analyze the possibility of using several SAW passive sensors in the collision case. We consider the using of the different typical elements for passive surface acoustic wave tag which applies as an anticollision passive sensor. These wireless sensors based on the surface acoustic waves tags contain specifically coded structures. This topology makes possible the reliability o...
On-Board Unlimited Aircraft Complex of Environmental Monitoring
2018 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF), 2018
The problems of the creation and use of autonomous UAVs for environmental monitoring of the earth... more The problems of the creation and use of autonomous UAVs for environmental monitoring of the earth and sea surfaces, as well as the state of ice fields are considered. Technical features of power supply, navigation system, wireless transmission channel and encryption of transmitted data are evaluated. A variant of the equipment of an autonomous complex for monitoring subsurface layers based on six-engine drone with the use of an ultra-wideband radar for implementing the functions of monitoring hazardous objects (forest fires, areas of man-made and natural emergencies), the detection of people and physical objects in the review of marine and coastal zones, as well as ice covers and subsurface layers.
Proceedings of the Proceedings of The 2nd International Conference On Advance And Scientific Innovation, ICASI 2019, 18 July, Banda Aceh, Indonesia, 2019
When testing onboard equipment of aircraft using for local monitoring, there is a need for mathem... more When testing onboard equipment of aircraft using for local monitoring, there is a need for mathematical models of signals reflected from the sea surface. The mathematical model of sea surface echoes based on the log-normal law is proposed, taking into account the spatiotemporal correlation function of the sea surface echo signal observed in the distance gate of the airborne locator of the aircraft. The proposed analytical expressions used to approximate the correlation functions are based on experimental data and a multidimensional logarithmic-normal model of fluctuations in the envelope of the echo signal. The model can be used in the design of onboard location complexes, in the interests of radar mapping, monitoring of environmental pollution, as well as for the synthesis of simulated sea-surface echo signals.
Determination of the coastal edge using on-board radar
SPIE Future Sensing Technologies 2021
International Journal of Advanced Research in Computer Science and Electronics Engineering, 2012
WiMAX Technology is also one of the emerging wireless technology that provide us high speed mobi... more WiMAX Technology is also one of the emerging wireless technology that provide us high speed mobile data and telecommunication services. WiMAX is the first wireless standard that allows the service provider or user to choose a codec based on the application Voice over Internet Protocol (VoIP) is an internet technology for the transmission of voice and multimedia over the Internet Protocol (IP) based network, especially the Internet. It has been widely in use as a communication protocol to replace traditional telephone technology, Public Switched Telephone Network (PSTN). As OPNET 14.5 provides simulated real-life environment, we have chosen as the platform OPNET simulation to study the performance of all of this work. The parameters used to evaluate the network throughput, jitter and packet and to and delay. Performance of VoIP codec is used to analyze traffic on the network wimax.
International Journal of Advanced Research in Computer Science and Electronics Engineering, 2013
Statistical distributions are used to represent behavior of real VoIP traffic. This paper investi... more Statistical distributions are used to represent behavior of real VoIP traffic. This paper investigates the performance of VoIP traffic over WiMAX networks by examining statistical comparison of interarrival time distribution. The parameters are used to analyze the Quality of Service (QoS), like delay, jitter, throughput with respect to Voice Activity Detection (VAD) or Silence Detection (SD) in voice codec G.729. The simulation result indicates that the pareto distribution in interarrival time has a significant impact on the performance of VoIP in WiMAX network.
International Journal of Advanced Research in Computer Science and Electronics Engineering, Sep 27, 2012
WiMAX Technology is also one of the emerging wireless technology that provide us high speed mobil... more WiMAX Technology is also one of the emerging wireless technology that provide us high speed mobile data and telecommunication services. WiMAX is the first wireless standard that allows the service provider or user to choose a codec based on the application Voice over Internet Protocol (VoIP) is an internet technology for the transmission of voice and multimedia over the Internet Protocol (IP) based network, especially the Internet. It has been widely in use as a communication protocol to replace traditional telephone technology, Public Switched Telephone Network (PSTN). As OPNET 14.5 provides simulated real-life environment, we have chosen as the platform OPNET simulation to study the performance of all of this work. The parameters used to evaluate the network throughput, jitter and packet and to and delay. Performance of VoIP codec is used to analyze traffic on the network wimax.
Encoding of Passive Anticollision Radio Frequency Identification Surface Acoustic Waves Tags
Proceeding of the Electrical Engineering Computer Science and Informatics
When testing onboard equipment of aircraft using navigation radar maps for navigation, there is a... more When testing onboard equipment of aircraft using navigation radar maps for navigation, there is a need for mathematical models of signals reflected from the earth's surface and the sea surface. Traditionally, using theoretical constructions, such models were models of stochastic signals, the envelope fluctuations were described by the laws of Rayleigh and Rayleigh-Rice. These models were used both for simulating signals reflected from the earth's surface, and for signals reflected from the sea surface. With low resolution of airborne radars, these models described the statistical characteristics of fluctuating signals quite well. Modern onboard locators have high resolving power and the Rayleigh and Rice models can no longer be used in the synthesis and modeling of modern on-board navigation systems. In this paper, we propose an approach to the construction of models of location signals that uses both theoretical construction and experimental data, which allows us to take into account the features of the reflection of the location signals from small parts of the underlying surface of the earth and the sea, while taking into account both the correlation between the individual sections and the anisotropy of the reflections when observing areas from different angles. Reflections from the sea surface are approximated by a log-normal law, reflections from the terrestrial, in view of the variety of surface types, Beckman and Weibull laws, particular cases of which are the laws of Rice, Hoyt and Rayleigh. These models can be used for high-precision mapping, monitoring environmental pollution, testing the operating modes of aircraft equipment.
In solving the problem of noise immunity in communication systems are widely used compression cha... more In solving the problem of noise immunity in communication systems are widely used compression characteristics PM and LFM signals. Under the
influence noise, such as industrial or specially organized, compression characteristics of complex PM and LFM signals become worse faster. In the simulation method are researching the influence of such interference on the characteristics of signal compression using compression in the time range (matched filtering) and in the frequency range (Fourier Fast Conversion). The comparative analysis of these complex signals Interference and Interference methods of compression. The comparative
analysis of noise protective this complex signals and noise protective methods their compression is held.
Abstract-Statistical distributions are used to represent behavior of real VoIP traffic. This pa... more Abstract-Statistical distributions are used to represent behavior of real VoIP traffic. This paper investigates the performance of VoIP traffic over WiMAX networks by examining statistical comparison of interarrival time distribution. The parameters are used to analyze the Quality of Service (QoS), like delay, jitter, throughput with respect to Voice Activity Detection (VAD) or Silence Detection (SD) in voice codec G.729. The simulation result indicates that the pareto distribution in interarrival time has a significant impact on the performance of VoIP in WiMAX network.
WiMAX Technology is also one of the emerging wireless technology that provide us high speed mobil... more WiMAX Technology is also one of the emerging wireless technology that provide us high speed mobile data and telecommunication services. WiMAX is the first wireless standard that allows the service provider or user to choose a codec based on the application Voice over Internet Protocol (VoIP) is an internet technology for the transmission of voice and multimedia over the Internet Protocol (IP) based network, especially the Internet. It has been widely in use as a communication protocol to replace traditional telephone technology, Public Switched Telephone Network (PSTN). As OPNET 14.5 provides simulated real-life environment, we have chosen as the platform OPNET simulation to study the performance of all of this work. The parameters used to evaluate the network throughput, jitter and packet and to and delay. Performance of VoIP codec is used to analyze traffic on the network wimax.
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Papers by Maurits Wattimena
influence noise, such as industrial or specially organized, compression characteristics of complex PM and LFM signals become worse faster. In the simulation method are researching the influence of such interference on the characteristics of signal compression using compression in the time range (matched filtering) and in the frequency range (Fourier Fast Conversion). The comparative analysis of these complex signals Interference and Interference methods of compression. The comparative
analysis of noise protective this complex signals and noise protective methods their compression is held.