Laboratory for signal processing and remote control

Laboratory for signal processing and remote control is research and educational unit, wich covers interdisciplinary fields of signals and remote control. Both areas are interlaced, a common basis is often signal processing. In general, our fields of activity are signal and systems theory, closed-loop systems control and their use in various fields of sensor, measurement and control technology, computer vision, remote sensing and remote control.
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USRP module

Universal Software Radio Peripheral is a product of National Instruments. We use the NI USRP 2290, 2291 and 2293, wich covering range between 50MHz and 5GHz. USRP devices are used for generating and receiving radio signals. They are used for our research and also education work. Applications developed at the Laboratory for Signal Processing and Remote Control are a decoder for the IEEE 802.15.4 standard, radar, syntetic aperture radar, the humidity measuring system on the basis of radio waves, wall penetrating radar system, GSM signal detector.

Sensor networks

Using sensors, their location is generally unknown or is changing over time. Knowing the sensors location enables development of several services such as security of network operations, locally-based routing, object tracing, intrusion detection, patient monitoring etc. We have been dealing with this interesting field of research in recent years and we have developed two generic methods of sensors location determination: (i) the use of the rotating directional antennas, wich emulate the classic radar operation (ii) using the static field of antennas or use of one complex multi-element antenna with phase shift or power difference measuring.
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Industrial networks

The basic problem of industrial data networks used in automation and remote control is deterministic operation, wich require real-time information transfer and operation of controlled or observed system. Current research is based on the so-called sectoral industrial network. Latest achievements in the development of technologies, standards and requirements are deployment of Ethernet network standards in the industrial environment, energy distribution etc.
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Radar data processing

In collaboration with the German Space Agency (DLR) we are developing algorithms for automatic categorization of the Earth's surface. Our activities in the field of remote sensing covers the processing of radar images, which includes the processing of the final focused SAR image to eliminate spot noise and scene modeling with texture models and indexation. We have developed the detection of soil moisture with and without vegetation method and we are dealing with change detection using interferometric data, ie the classification of information from the interferometric data and assessing the amount of vegetation from SAR data.
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SparcMosquito

Our research and education is based on the use of the Philips LPC1768 micro-controller wich has an ARM Cortex M3 architecture. All modern micro-controllers have several features, such as communication blocks, timers, PWM modules, A/D and D/A converters and GPIO pins. This allow user to connect various external devices. For providing the physical layer of IEEE 802.15.4 we expand the MCU system with the MRF24J40 micro-controller, additionally the MRG24WB0MA module provides the wireless communication.

Control of inverted pendulum

In the context of students diploma work the complete realization of the design and construction of the inverted pendulum on a cart was carried out. The idea was to develop the inverted pendulum and design the control system for stabilization of the vertical positioning pendulum.

Molding pendulum and computer vision

The objective of this term paper was to design the position control of the ball based on the positiom measuring with machine vision system. The camera is installed in front of the pendulum and is capable to recognize the ball and it's position. The closed-loop control system keep the ball at user defined position.
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