Airborne Data Link Research Articles

Retracted: To Improve the Real‐Time Performance of Airborne Data Link Communication System

Retracted: To Improve the Real‐Time Performance of Airborne Data Link Communication System

A Distributed Formation Joint Network Navigation and Positioning Algorithm

In view of the problem that the leader-follower joint navigation scheme relies too much on the absolute navigation and positioning accuracy of the leader node, under the conditions of distributed network-centric warfare (NCW) and to meet the location service accuracy, reliability, and synergy efficiency of the future integrated communication, navigation (ICN), we built a joint navigation and positioning system with low Earth orbit (LEO), airborne data link, and inertial navigation system (INS) as the core; designed a ranging and time-synchronization scheme of the joint navigation and positioning system; and established a joint navigation and positioning method for formation and networking based on mutual ranging and velocity measurement information between aircrafts. Finally, based on the designed LEO constellation, the universality, effectiveness, superiority, and potential superiority of algorithm are verified, respectively. The simulation results show that the scheme can meet the requirements of joint location services in challenging environments, and could be used as a reference scheme for future ICN integration.

Trajectory tracking analysis of airborne data link antenna

With the development of weapons and equipment and changes in combat concepts, airborne data links have become more and more widely used in war communications. Whether their system performance is stable and reliable has gradually become a key indicator for measuring the combat effectiveness of the Air Force. This article mainly introduces the airborne data link to provide graphical information for combatants, solves the problem that people’s information cannot be shared synchronously, expands the transmission scale of data information, and greatly improves the situational awareness of the battlefield. This paper mainly studies the link between the airborne data link between the computer and the aircraft, and makes a substantial analysis of the trajectory tracking, which is helpful for the combatants to be familiar with the trajectory direction and internal structure, and provide clear trajectory information for the fighters Interpretation, you can see at a glance the graphics, and the information obtained by the combatants is consistent. This paper mainly uses the standard Kalman filter algorithm to study the basic characteristics of the target ballistic group motion, and based on the HLA-simulated development of GBR radar integration and completed the system test to verify the accuracy of the simulation signal processing. The experimental results of this paper show that the information acquisition rate of combatants under the airborne data link has been increased by 40%, and the consistency of simultaneous information acquisition has been improved by 90%. This is the future development direction of the theater.

Method for improving trajectory tracking accuracy in sea area of airborne data link

In order to further expand the trajectory of the airborne data link platform to capture the trajectory, the coverage of the data link drone relay communication improves the communication quality and tracking accuracy. The accuracy of the ballistic trajectory is based on the filtering requirements of the received signal strength (RSSI) combined with the automatic selection and analysis of TOS and QOS of the business channel to improve the transmission of airborne data link pairs and land, sea, and sky data link drones multi-path selection. In this paper, the simulation of the trajectory of the ballistic target and the simulation of the received signal and noise are used to verify the trajectory tracking of the airborne data link to achieve the realization of offshore communication, thereby solving and ensuring the effective communication of the airborne data link, feasible and effective, with broad application prospects in the sea.

Safety Assessment Process Optimization for Integrated Modular Avionics

In order to evaluate the safety impacts introduced by the additional interactions between the software partition and the integrated modular avionics platform, an optimized safety assessment process is proposed to address the software partition specific failure mode, quantitative failure rate budget allocation, software reliability verification, and feedback to higher level safety assessment. With a case study based on an airborne datalink system, the optimized safety assessment process is discussed in detail, including the specific failure condition and corresponding preventive/corrective actions, the allocation and verification of software partition failure rate, as well as the feedback channel of these partition software failure rate to item/function failure mode and effect assessment. A reliability framework of partition software is also presented to support the reliability verification of partition software. The methodology is applicable to other IMA-based avionics system.

Effects of Airborne Data Link Communication on Demands, Workload and Situation Awareness

An airborne air-to-ground data link communication interface was evaluated in a multi-sector-planning scenario using an Airbus A 340 full flight simulator. In a close-to-reality experimental setting, eight professional crews performed a flight mission in a mixed voice/data link environment. Experimental factors were the medium (voice vs. data link), workload (low vs. high) and the role in the cockpit (pilot flying vs. pilot non-flying). Data link communication and the usability of the newly developed communication interface were rated positively by the pilots, but there is a clear preference for using a data link only in the phase of cruise. Cognitive demands were determined for selected sections of en-route flight. Demands are affected mainly by increased communication needs. In the pilots’ view, although a data link has no effect on safety or the possibilities of intervention, it causes more problems. The subjective workload, as measured with the NASA Task Load Index, increased moderately under data link conditions. A data link has no general effect on pilots’ situation awareness although flight plan negotiations with a data link cause a distraction of attention from monitoring tasks. The use of a data link has an impact on air-to-ground as well as intra-crew communication. Under data link conditions the pilot non-flying plays a more active role in the cockpit. Before introducing data link communication, several aspects of crew resource management have to be reconsidered.