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Single Frequency Networks (SFN) in Digital Terrestrial Broadcasting
(Společnost pro radioelektronické inženýrství, 2007-12)
The paper deals with principles and properties of single frequency networks of digital television and radio transmitters. Basic definitions and contextual relationships (guard interval, area of SFN, influence of used ...
Testing of DVB-H Mobile Terminals Capability
(Společnost pro radioelektronické inženýrství, 2007-12)
This paper deals with the transmission of digital television to the DVB-H mobile terminals and interaction of DVB-H system with GSM/UMTS network. The mobile terminals testing approach is introduced including the testing ...
New Methods of Stereo Encoding for FM Radio Broadcasting Based on Digital Technology
(Společnost pro radioelektronické inženýrství, 2007-12)
The article describes new methods of stereo encoding for FM radio broadcasting. Digital signal processing makes possible to construct an encoder with properties that are not attainable using conventional analog solutions. ...
Robust Digital Watermarking Based on the Log-Polar Mapping
(Společnost pro radioelektronické inženýrství, 2007-12)
The geometrical attacks are still an open problem for many digital watermarking algorithms used in present time. Most of geometrical attacks can be described by using affine transforms. This article deals with digital ...
Content Adaptive True Motion Estimator for H.264 Video Compression
(Společnost pro radioelektronické inženýrství, 2007-12)
Content adaptive true motion estimator for H.264 video coding is a fast block-based matching estimator with implemented multi-stage approach to estimate motion fields between two image frames. It considers the theory of ...
On the Relationship between Integer Lifting and Rounding Transform
(Společnost pro radioelektronické inženýrství, 2007-12)
In this paper we analyze the relationship between integer Lifting scheme and Rounding transform as means to compute the wavelet transform in signal processing area. We bring some new results which better describe relationship, ...
Chip Interleaving and its Optimization for PAPR Reduction in MC-CDMA
(Společnost pro radioelektronické inženýrství, 2007-12)
This paper analyzes the usability of peak to average power ratio (PAPR) reduction in multicarrier code division multiple access (MC-CDMA) by the chip interleaving optimization. This means chip position formatting to PAPR ...
New Watermarking Scheme for Security and Transmission of Medical Images for PocketNeuro Project
(Společnost pro radioelektronické inženýrství, 2007-12)
We describe a new Watermarking system of medical information security and terminal mobile phone adaptation for PocketNeuro project. The later term refers to a Project created for the service of neurological diseases. It ...
Multi-Carrier Modulation and MIMO Principle Application on Subscriber Lines
(Společnost pro radioelektronické inženýrství, 2007-12)
The multi-carrier modulation is used in many applications, primary for a wireless transmission, for example Wi-Fi and WiMAX networks or DVB-T. But the same physical principle can be used also for metallic lines in access ...
Evaluation of Measurement Performance in Averaging Quantization System with Noise
(Společnost pro radioelektronické inženýrství, 2007-12)
Statistical description of quantization process is common in the theory of quantization. For the case of nonsubtractive dither theoretical analyses of the dithered quantizer have been confronted with experimental results. ...