By Electronic Navigation Research Inst
The digital Navigation examine Institute (ENRI) held its third International Workshop on ATM / CNS in 2013 with the subject of "Drafting the destiny sky".
There is around the globe job happening within the learn and development of smooth air site visitors administration (ATM) and its permitting applied sciences in Communication, Navigation and Surveillance (CNS).
Pioneering paintings is important to give a contribution to the worldwide harmonization of air site visitors administration and keep watch over. At this workshop, best experts in examine, and academia from around the globe met to share their principles and techniques on ATM/CNS comparable topics.
Read Online or Download Air Traffic Management and Systems: Selected Papers of the 3rd ENRI International Workshop on ATM/CNS (EIWAC2013) PDF
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Additional info for Air Traffic Management and Systems: Selected Papers of the 3rd ENRI International Workshop on ATM/CNS (EIWAC2013)
M). 5. Calculate the statistics of the approximate solution, the expected value E[z(p)] and the variance var(z(p)), from the coefficients Cm . 4 Numerical Simulation In this subsection, numerical simulation is conducted to verify the effectiveness and performance of our proposed stochastic trajectory optimization method. 24 Y. Matsuno and T. Tsuchiya Fig. 1 Problem Setting We consider the aircraft flying in two-dimensional plane, the ξ and η coordinate frame as shown in Fig. 1. The state variables are defined as x(t) = (ξ , η , ψ )T where ψ is the heading angle, and the control variable u(t) is the bank angle.
The longitude and latitude directions. Then, we consider five random variables. 57 m/s for the airspeed measurement error and 50 m for the current position estimation errors [2, 17, 21, 24]. The wind prediction error represents uncertainty in the meteorological prediction, and for simplicity the only wind prediction error is considered. Because the Gaussian distributions are used for the uncertainties in this paper, Hermite polynomial basis functions collocated at Gauss-Hermite quadrature points are selected for the gPC method as suggested in the paper by Xiu .
On the other hand, when dsep is 5 nm, the conflict probability of when D is 160 nm is not much different from that of when D is 80 nm. The reasons of this are as follows. As shown in Figs. 4 and 5, when D becomes larger, the standard deviation of the time of arrival gets larger and the probability distribution grows wider. Accordingly, when dsep is 10 nm, the range in which the two probability distributions overlap each other is much larger. In contrast, when dsep is 5 nm, the range of when D is 80 nm is not much different from that of when D is 160 nm.