Surveillance and data link communication performance analysis for NextGen

Chung, William; Linse, Dennis J.; Alaverdi, Omeed; Ifarragurrie, Carlos; Salvano, Dan; Seifert, Scott

doi:10.1109/icnsurv.2012.6218395

Cited by 1 publication

(2 citation statements)

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“…The CAZ is made of three components assured collision avoidance distance, position and trajectory uncertainty as shown in Fig.2 [6]. The assured collision avoidance distance (ACAD) is minimum distance that is needed to avoid collision which depends on the size of the aircrafts in conflict as shown in Fig.1 [7]. TCAS generates alerts in the form of vertical speed change when CAZ is penetrated by other aircraft with a look-ahead time 30-40 sec.…”

Section: Conflict Zones and Separation Assurancementioning

confidence: 99%

“…Paper considers changing only ownship velocity vector characterstics as it is desirable to change one aircraft flight path instead of both aircraft, from safety point of view. The relative vector rel V has to be rotated by an angle for resolution, either by heading or speed change by ownship as shown in Fig-3, this would in turn cause change in magnitude of relative velocity vector defined by equation- (7). For a given rotation of relative vector, the manouvre that causes minimum change in magnitude of relative vector would be considered as optimal maneuver.…”

Section: A Effect Of Conflict Angle On Manouvre Strengthmentioning

confidence: 99%

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Traffic avoidance and separation system

Katta

Madani

2017

2017 International Conference on Advances in Computing, Communications and Informatics (ICACCI)

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Aircraft need to be separated from other aircraft by either a minimum vertical distance of 1000ft or by a minimum horizontal distance of 5NM to avoid mid-air collisions. Traffic Alert and Collision Avoidance System (TCAS) work well as a tactical safety backups to avoid collision, but cannot perform separation assurance. This paper presents the design aspects of system that would predict separation infringement and provide flight crew with necessary guidance for maintaining separation. This paper discusses formulation of system function based on ADS-B, mathematical models, simulation and results. A system model has been implemented in MATLAB and various encounters with different speed ratios at various conflict angles has been fed as input to system model with a goal of avoidance and recovery to original waypoint. Both Heading and Speed maneuvers are evaluated and results are presented. The required strength of resolution maneuver as a function of conflict geometry is studied and automatic maneuver selection function is implemented in system model and maneuver selection function is evaluated with discussion of results.

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Section: Conflict Zones and Separation Assurancementioning

confidence: 99%

Section: A Effect Of Conflict Angle On Manouvre Strengthmentioning

confidence: 99%