Promising technologies for improving the efficiency of specialized aviation and rocket-space communication systems

2021 ◽  
pp. 11-18
Author(s):  
В.С. Бабин
Keyword(s):  
Information Exchange ◽  
Communication Systems ◽  
Space Systems ◽  
Space Communication ◽  
Voice Communication ◽  
Personal Qualities ◽  
Speech Information ◽  
Familiar Form

Развитие авиационных и ракетно-космических систем специальной связи в настоящий момент характеризуется увеличением объемов речевых информационных сообщений. Речь, как наиболее привычная форма общения, позволяет выражать эмоции и личные качества говорящего, чего гораздо сложнее добиться иными путями информационного обмена. Растущий спрос на голосовую связь порождает необходимость выработки перспективных технологий повышения эффективности функционирования таких систем, анализ которых и проведен в данной статье. The development of aviation and rocket-space systems of special communication is currently characterized by an increase in the volume of speech information messages. Speech, as the most familiar form of communication, allows you to express the emotions and personal qualities of the speaker, which is much more difficult to achieve in other ways of information exchange. The growing demand for voice communication creates the need to develop promising technologies to improve the efficiency of such systems, the analysis of which is carried out in this article.

The problem of improving the efficiency of specialized aviation and space-rocket communication systems in the context of increasing flows of speech messages

2020 ◽  
pp. 27-33
Author(s):  
В.С. Бабин
Keyword(s):  
Communication Systems ◽  
Voice Communication ◽  
Time Frequency ◽  
Stage Of Development ◽  
Space Rocket ◽  
Personal Qualities ◽  
Cost Of Time ◽  
The Cost ◽  
Speech Information ◽  
Current Stage

Современный этап развития авиационных и ракетно-космических систем специальной связи характеризуется увеличением объемов речевых информационных сообщений. Речь придает эмоциональный окрас общению, а также позволяет выражать личные качества говорящего, чего гораздо сложнее добиться путем обмена видеозаписями или изображениями. Данные аспекты подтверждают, что, во-первых, растет спрос на голосовую связь, а, во-вторых, возникает проблема повышения эффективности ССС. Возможным направлением решения таковой проблемы целесообразно считать минимизацию затрат частотно-временных ресурсов, в основе которой лежит совершенствование методов обработки данных. he current stage of development of aviation and rocket and space special communication systems is characterized by an increase in the volume of speech information messages. Speech gives an emotional color to communication, and also allows you to Express the personal qualities of the speaker, it is much more difficult to achieve by exchanging videos or images. These aspects confirm that, firstly, the demand for voice communication is growing, and, secondly, there is a problem of improving the efficiency of the CCC. It is advisable to consider minimizing the cost of time-frequency resources, which is based on improving data processing methods, as a possible way to solve this problem.

Radio Frequency Support for Space Systems Based on Multi-Satellite Constellations Taking into Account the ITU-R Requirements and the WRC-19 Results

2021 ◽  
Vol 8 (4) ◽  
pp. 72-76
Author(s):  
А. А. Talanov ◽  
◽  
S. А. Fedotov ◽  
А. М. Stepanov ◽  
◽  
...  
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
Communication Systems ◽  
Electromagnetic Compatibility ◽  
Satellite Communication ◽  
Space Systems ◽  
Satellite Constellations ◽  
Broadband Internet ◽  
State Commission ◽  
Radio Frequency Spectrum

Deployment of space systems based on multi-satellite constellations to provide broadband Internet access and communication services acutely raises the question of their radio frequency support including issues of electromagnetic compatibility (EMC) between competing space systems using multi-satellite constellations (StarLink, OneWeb, Kuiper, etc.), their EMC with traditional space systems (satellite communication systems that employ spacecraft in geostationary and non-geostationary orbits, space systems of other services), as well as regulatory issues of entering into service and staged deployment of space systems. The article formulates the problematic issues of radio frequency support of modern space systems taking into account the trends of satellite constellations deployment and proposes the solutions with consideration to international and national requirements in the regulation of radio frequency spectrum including the ITU requirements and the requirements of Russian State Commission for Radio Frequencies. The paper shows the ways to share the radio frequency spectrum to meet new requirements of the World Radiocommunication Conference 2019 (WRC-19).

PENGARUH PENGGUNAAN CODEC STANDART ITU G.729 TERHADAP SISTEM KOMUNIKASI VOIP

2021 ◽  
Vol 17 (1) ◽  
pp. 11-22
Author(s):  
Wahyu Adi Prijono
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Internet Protocol ◽  
Voice Over Internet Protocol ◽  
Data Communications ◽  
Voice Communication ◽  
Internet Telephony ◽  
Voice Signal ◽  
Ip Network ◽  
Packet Switch

Voice over Internet Protocol (VoIP) is a technology that is capable of passing voice traffic, in the form of packets through the network Internet Protocol (IP). IP network itself is a data communications network based packet-switch. The voice signal before experiencing bundled voice coding or format conversion of sound into digital form that can be passed over an IP network. Telephony, Internet telephony, or termed VoIP (Voice Over Internet Protocol.This communication system use VoIP (Voice over Internet Protocol), ie voice calls over data services (internet). This communication was developed using Android-based devices. Based on characteristics, android devices are open source, so users do not need to have a license to be able to have android-based devices. In addition, the android device that must be connected to a SIP (Session Iniation Protocol) is a data service that can be done with a paid subscription of the user of the operator using a conventional pulse. Telecommunications designed will use a hybrid system, the merger between VoIP communications with data communications GSM network. With basic calculations where Coding standards G 729, is a standard that can be used for voice communication system through data networks with rate of 8 Kbps. The implementation of the G729 codec is effect on communication systems VOIP.

Evaluating the Effects of Noise on Voice Communication Systems

2018 ◽  
pp. 125-152
Author(s):  
William D. Voiers ◽  
Alan D. Sharpley ◽  
Ira L. Panzer
Keyword(s):  
Communication Systems ◽  
Voice Communication

scholarly journals Sistem Komunikasi Suara Bawah Air dengan Metoda Simplex menggunakan Visible Light Communication (VLC)

2019 ◽  
Vol 7 (2) ◽  
pp. 253
Author(s):  
LUCIA JAMBOLA ◽  
ARSYAD RAMADHAN DARLIS ◽  
LITA LIDYAWATI ◽  
DZIKRI FACHRI HUSAENI
Keyword(s):  
Visible Light ◽  
Communication Systems ◽  
Light Transmission ◽  
Visible Light Communication ◽  
Color Filter ◽  
Underwater Communication ◽  
Test Results ◽  
Voice Communication ◽  
Yellow Color ◽  
Long Time

ABSTRAKSistem komunikasi suara bawah air telah dikenal sejak lama, diantaranya sonar dan akustik. Seiring perkembangan zaman dan kemajuan teknologi, kini hadir komunikasi dengan media transmisi cahaya tampak yaitu Visible Light Communication (VLC) yang dapat diterapkan pada komunikasi bawah air. Pada penelitian ini telah dilakukan komunikasi suara bawah air (simplex) menggunakan VLC, dengan media akuarium berisi air dan beberapa pengujian diantaranya menggunakan color filter, didapat hasil pengujian terbaik yaitu tegangan 4,4 Vpp dan frekuensi 3,003 kHz untuk color filter yellow, pengujian menggunakan lensa didapat hasil pengujian terbaik yaitu tegangan 4,4 Vp-p dan frekuensi 3,051 kHz untuk lensa (+50), dan pengujian terakhir menggunakan lampu UV didapat hasil pengujian terbaik dengan tegangan 4,4 Vp-p dan frekuensi 3,010 kHz. Implementasi sistem VLC ini menunjukkan hasil yang baik dan layak untuk diterapkan pada komunikasi suara bawah air (simplex).Kata kunci: VLC, Komunikasi Suara Bawah Air, Simplex. ABSTRACTUnderwater voice communication systems have been known for a long time, including sonar and acoustics. Along with the development and advancement of technology, now there is communication with visible light transmission media, namely Visible Light Communication (VLC) which can be applied to underwater communication. Under this study underwater voice communication (simplex) has been carried out using VLC, with aquarium media containing water and several tests including using a color filter, the best test results obtained are voltage 4.4 Vp-p and frequency 3.003 kHz for yellow color filter, testing using the lens obtained the best test results namely voltage 4.4 Vp-p and frequency 3.051 kHz for lenses (+50), and the last test using UV lights obtained the best test results with a voltage of 4.4 Vp-p and a frequency of 3.010 kHz. The implementation of the VLC system shows good and feasible results to be applied to underwater voice communication (simplex).Keywords: VLC, Underwater Voice Communication, Simplex.

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