scholarly journals Forward Design Method of Avionics System Based on Communication

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Yuyang Peng
Keyword(s):  
Communication Systems ◽  
Trusted Computing ◽  
Design Method ◽  
Rapid Development ◽  
Data Communication ◽  
Electronic System ◽  
Data Systems ◽  
Basic Protocol ◽  
Increasing Demand ◽  
Space Data

With the rapid development of computer technology, electronic technology, and control technology, communication-based avionics systems can provide greater potential for the improvement of aircraft combat capabilities. Moreover, during the flight, passengers have an increasing demand for space communications. How to provide passengers with a communication-based aerospace electronic system that is indistinguishable from the ground during the flight is a problem that needs to be solved urgently. The research on the forward design method of this system has been highly valued by experts at home and abroad. This article is a communication-based forward design method for avionics systems. Based on the development of aerospace data communication technology, this article discusses the advantages of the application of the CCSDS (Consultative Committee for Space Data Systems) protocol in the design of aerospace electronic communication systems. This research designs the technical scheme of the entire aerospace communication electronic system and refers to the relevant CCSDS protocol to complete the design of the distributor’s fast transmission telemetry package and the distributor’s slow transmission telemetry package. This article introduces the two existing architectures of the integrated avionics system, compares and analyzes them, and then elaborates the integrated avionics system architecture based on trusted computing and the trust chain transfer mechanism. The experimental results show that the method designed in this paper uses the NBSP basic protocol in an aeronautical communication environment with a nesting depth of 2 s. When the data transmission delay is 2 s, the NBSP scheme is 0.9 and the NERON scheme is 0.4. This shows that the design method of this study is able to meet the requirements of the system and technical indicators.

Mobile Commerce

2007 ◽  
pp. 455-460 ◽  
Author(s):  
J. Wang
Keyword(s):  
Mobile Applications ◽  
Rapid Development ◽  
Data Communication ◽  
Mobile Commerce ◽  
Mobile Telecommunication ◽  
Short Article ◽  
Telecommunication Systems ◽  
Application Architecture ◽  
Increasing Demand ◽  
Voice Data

The rapid development and deployment in wireless networks and mobile telecommunication systems are leading to a phenomenal growth of innovative and intelligent mobile applications generally referred to as mobile commerce (m-commerce). Mobile devices like the mobile phone become a necessity for everyone. M-commerce makes networks more productive by seamlessly bringing together voice, data communication, and multimedia services. There is an increasing demand in mobile applications or m-commerce. The objective of this short article is to discuss the reasons for the growth of m-commerce. First, variety of wireless and mobile telecommunication technologies will be reviewed. Second, the evolution of m-commerce application architecture will be studied. Third, we will examine the landscape of m-commerce. Finally, we conclude the article.

scholarly journals Research on Spacecraft Integrated Electronic System Architecture Based on Information Fusion

2018 ◽  
Vol 228 ◽  
pp. 01018 ◽  
Author(s):  
Qiang Ji ◽  
Shifeng Zhang ◽  
Haoguang Zhao
Keyword(s):  
Information Fusion ◽  
System Architecture ◽  
Electronic System ◽  
Satellite System ◽  
Transport Layer ◽  
Data Systems ◽  
Consultative Committee ◽  
Application Layer ◽  
Space Data ◽  
Protocol Architecture

This paper has designed the integrated electronic system and protocol architecture based on the standard of Consultative Committee for Space Data Systems (CCSDS) and European Communication Satellite System (ECSS). The application layer, application support layer, transport layer and sub network layer in the architecture can be described in detail, and the functions can be realized through the combination of various business and protocols. The architecture can provide technical support for the intellectualization and networking of spacecraft, standardize the spacecraft interface and protocol, it can promote the generalization of spacecraft equipment and software, and provide more flexible and powerful functions for the spacecraft.

scholarly journals Delay Analysis for End-to-End Synchronous Communication in Monitoring Systems

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3615 ◽  
Author(s):  
Junwei Cao ◽  
Yuxin Wan ◽  
Haochen Hua ◽  
Yuchao Qin
Keyword(s):  
Power Systems ◽  
Smart Grids ◽  
Communication Systems ◽  
Rapid Development ◽  
Data Communication ◽  
Simulation Software ◽  
Communication Delay ◽  
Synchronous Communication ◽  
Network Calculus ◽  
End To End

With the rapid development of smart grid technologies, communication systems are further integrated in the existing power grids. The real-time capability and reliability of the power applications are receiving increasing concerns. Thus, it is important to measure the end-to-end delay in communication systems. The network calculus theory has been widely applied in the communication delay measuring tasks. However, for better operation performance of power systems, most power applications require synchronous data communication, in which the network calculus theory cannot be directly applied. In this paper, we expand the network calculus theory such that it can be used to analyze the communication delay for power applications in smart grids. The problem of communication delay calculation for the synchronization system is converted into a maximum path problem in graph theory. Finally, our theoretical results are compared with the experimental ones obtained with the network simulation software EstiNet. The simulation results verify the feasibility and effectiveness of the proposed method.

scholarly journals Reducing Subcarriers Beam-Squinting of Ultra-Wideband Mobile Communication Systems using Phased Array Antennas

2021 ◽  
Vol 10 (4) ◽  
pp. 213-217
Author(s):  
Dr. K. Rama Devi ◽  
◽  
M. Nani ◽  
Keyword(s):  
Communication Systems ◽  
Phased Array ◽  
Rapid Development ◽  
Radio Spectrum ◽  
Ultra Wideband ◽  
Closed Form Expression ◽  
Wireless Devices ◽  
Phased Array Antennas ◽  
Fifth Generation ◽  
Increasing Demand

There has been increasing demand for accessible radio spectrum with the rapid development of mobile wireless devices and applications. For example, a GHz of spectrum is needed for fifth-generation (5G) cellular communication, but the avail- able spectrum below 6 GHz cannot meet such requirements. Fortunately, spectrum at higher frequencies, in particular, millimeter-wave bands, can be utilized through phased-array analog beamforming to provide access to large amounts of spectrum. However, the gain provided by a phased array is frequency dependent in the wideband system, an effect called beam squint. We examine the nature of beam squint and develop convenient models with a uniform linear array. To further simplify the evaluation of the system performance, an approximated closed-form expression for the array gain is derived. Furthermore, to evaluate the performance of the proposed design, rigorous numerical results concerning different system parameters are provided in this paper.

Presentation, Design and Application of a New Parallel Frame Synchronization Scheme

2013 ◽  
Vol 677 ◽  
pp. 455-459
Author(s):  
Bao Tang Shan
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Satellite Communication ◽  
Design Method ◽  
Data Communication ◽  
Decision Time ◽  
Frame Synchronization ◽  
Decision Performance ◽  
Synchronization Scheme ◽  
Parallel Frame

To solve the problems of frame sync words gotten unstably and short frame synchronization state decision time, a new parallel frame synchronization scheme is presented. The proposed method improves the robustness and state decision performance of the frame synchronization system. The method is implemented and verified in a high-speed satellite communication system. Based on that practical application, a multi-channel parallel frame synchronization design method is given for even higher speed data communication systems.

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