Versatile Video Coding for 3.0 Next Generation Digital TV in Brazil

In the past few decades, the video broadcast ecosystem has gone through major changes; Originally transmitted using analog signals, it has been more and more transitioned toward digital, leveraging compression technologies and transport protocols, principally developed by MPEG. Along this way, the introduction of new video formats was achieved with standardization of new compression technologies for their better bandwidth preservation. Notably, SD with MPEG-2, HD with H.264, 4K/UHD with HEVC. In Brazil, the successive generations of digital broadcasting systems were developed by the SBTVD Forum, from TV-1.0 to TV-3.0 nowadays. The ambition of TV-3.0 is significantly higher than that of previous generations as it targets the delivery of IPbased signals for applications, such as 8K, HDR, virtual and augmented reality. To deliver such services, compressed video signals shall fit into a limited bandwidth, requiring even more advanced compression technologies. The Versatile Video Coding standard (H.266/VVC), has been finalized by the JVET committee in 2021 and is a relevant candidate to address the TV3.0 requirements. VVC is versatile by nature thanks to its dedicated tools for efficient compression of various formats, from 8K to 360°, and provides around 50% of bitrate saving compared to its predecessor HEVC. This paper presents the VVC-based compression system that has been proposed to the SBTVD call for proposals for TV-3.0. A technical description of VVC and an evaluation of its coding performance is provided. In addition, an end-to-end live transmission chain is demonstrated, supporting 4K real-time encoding and decoding with a low glass-to-glass latency.

Bistatic Forward ISAR with DVB-T Transmitter of Opportunity

The radar geometry defined by a spatially separated transmitter and receiver with a moving object crossing the baseline is considered as a Bistatic Forward Inverse Synthetic Aperture Radar (BFISAR). As a transmitter of opportunity, a Digital Video Broadcast-Terrestrial (DVB-T) television station emitting DVB-T waveforms was used. A system of vector equations describing the kinematics of the object was derived. A mathematical model of a BFISAR signal received after the reflection of DVB-T waveforms from the moving object was described. An algorithm for extraction of the object’s image including phase correction and two Fourier transformations applied over the received BFISAR signal—in the range and azimuth directions—was created. To prove the correctness of mathematical models of the object geometry, waveforms and signals, and the image extraction procedure, graphical results of simulation numerical experiments were provided.

Analisis Wacana Kritis Pada Debat Pilwakot Surakarta Putaran Kedua Tahun 2020

This study aims to describe the discourse analysis contained in the second round of the Surakarta pilwakot debate in 2020. In a critical discourse analysis study, the debate can be analyzed using William L. Benoit's functional theory which includes acclaims or claims, attacks or attacks, and defends or defends. This research uses descriptive qualitative research by describing the functional theory contained in the second round of the Surakarta Pilwakot debate. The documentation technique was used to collect data by watching, viewing, and writing the most important points in the second round of the Solo Pilwakot debate live video broadcast. Content analysis techniques were used in this study to obtain the forms of acclaim, attacks, and defends used by candidate pairs in arguing. Based on the results of the analysis, the two pairs of candidates equally made acclaims or claims, recognition as one way to convince their supporters. As for attacks or attacks, candidate pair number 1 is superior in attacking candidate pair number 2. On defends, candidate pair number 1 (Gibran-Teguh) defends based on empirical data or facts as an aspect of knowledge which supports his argument. Another case with candidate pair number 2 (Bagyo-Supardjo) who is not strong enough in doing a defense or defends through answers or responses that are out of the context in question

THE MODELS OF AUTO TARGETING STRIKE UAV AT THE MOVING TARGET

A special kind of use of UAVs as transport is their use to deliver the destruction means to the target on the battlefield, i.e. as strike unmanned aerial vehicles (UAVs), capable to inflict missile and bomb strikes on the enemy. Of particular interest are such drones, which do not require constant aiming at the target by the flight operator (ground pilot) with the help of a video transmitting system, but are targeted independently. Such UAVs have onboard a target sighting sensor (coordinator), with which the onboard control system determines the angular position of the target relative to the UAV. It is necessary to determine the most optimal targeting algorithms to be used in onboard control systems. UAVs due to the successful combination of cheap goods, technological availability and availability of other technical indicators (load capacity, efficiency and duration of flight, maneuverability) can be used as vehicles for cargo delivery. For example, UAVs are used to deliver ammunition and medicine to victims. The mechanism of the primary notification to the on-board control system of the UAV of the coordinates of the target to be hit, ie the task of "primary targeting", remains not completely solved by the technical and organizational task when using strike UAVs. Targeting methods using the on-board video broadcast system and direct commands of the ground pilot require, firstly, the installation of appropriate payload on board with an understanding of the loss of this equipment in combat use of UAVs, and secondly, effective avoidance of radio suppression by the enemy. The article presents the results of modeling with the help of Simulink models of the processes of guidance of a strike UAV with targeting on a moving aim by two methods: direct guidance and dynamic bias. The trajectories of UAV flights during diving to the target were obtained. The changes in the main working parameters during the guidance process were obtained as well. The conclusion about the advantage of the method of dynamic bias is made.

Virtual Laboratory for Studying and Programming Stm32 Microcontrollers

Currently, the design of platforms based on microcontrollers is a very promising direction due to their reduction in cost and increase in the performance of circuits. Microcontrollers are installed in industrial equipment, smartphones and audio players, video equipment, and much more. The paper provides the theoretical foundations for working with microcontrollers of the STM32 series, their purpose, system architecture, software model, as well as the features of the ARM Cortex M3 core. 32-bit core has many advantages, but the main one is its versatility. The structure of a software and hardware complex for studying and programming microcontrollers located on a remote server using the step-by-step debugging mode is described. The paper also discusses the features of writing programs for microcontrollers of the STM32 series. The virtual laboratory is a platform for the visual study of microcontrollers and the Assembler programming language. The system allows you to program, flash and debug microcontrollers without purchasing them. The user can test a code on a real device and view memory areas, registers and other debugging information in real time, as well as watch all changes in peripheral devices using video broadcast. The GDB GUI web interface allows you not to install additional applications, but to debug the program right in the browser. All kinds of sensors and indicators can be connected to the system, with which the user can work. Examples of programs written in the Assembler programming language are given to demonstrate the work of a virtual laboratory. The proposed platform can be integrated into a training course for learning the Assembler programming language.