Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 2413

j) as specified in 4.4.2.7: 1) the intruder involved in each encounter is not equipped (4.4.2.7 a)); or 2) the intruder is ACAS-equipped but follows a trajectory identical to that in the unequipped encounter (4.4.2.7 b)); or 3) the intruder is equipped with an ACAS having a collision avoidance logic identical to that of own ACAS (4.4.2.7 c)). Note.— The phrase “altitude measurement” refers to a measurement by an altimeter prior to any quantization. 4.4.2.1.1 The performance of the collision avoidance logic shall not degrade abruptly as the statistical distribution of the altitude errors or the statistical distributions of the various parameters that characterize the standard encounter model or the response of pilots to the advisories are varied, when surveillance reports are not available on every cycle or when the quantization of the altitude measurements for the intruder is varied or the altitude measurements for own aircraft are quantized. 4.4.2.2 STANDARD RANGE ERROR MODEL The errors in the simulated range measurements shall be taken from a Normal distribution with mean 0 ft and standard deviation 50 ft. 4.4.2.3 STANDARD BEARING ERROR MODEL The errors in the simulated bearing measurements shall be taken from a Normal distribution with mean 0.0 degrees and standard deviation 10.0 degrees. 4.4.2.4 STANDARD ALTIMETRY ERROR MODEL 4.4.2.4.1 The errors in the simulated altitude measurements shall be assumed to be distributed as a Laplacian distribution with zero mean having probability density ( ) exp e p e ⎛ ⎞ = − ⎜ ⎟ λ λ ⎝ ⎠ 4.4.2.4.2 The parameter λ required for the definition of the statistical distribution of altimeter error for each aircraft shall have one of two values, λ1 and λ2, which depend on the altitude layer of the encounter as follows: Chapter 4 Annex 10 — Aeronautical Telecommunications 4-33 22/11/07 Layer m ft m ft m ft m ft m ft m ft λ1 λ2 4.4.2.4.3 For an aircraft equipped with ACAS the value of λ shall be λ1. 4.4.2.4.4 For aircraft not equipped with ACAS, the value of λ shall be selected randomly using the following probabilities: Layer prob(λ1) 0.391 0.320 0.345 0.610 0.610 0.610 prob(λ2) 0.609 0.680 0.655 0.390 0.390 0.390 4.4.2.5 STANDARD PILOT MODEL The standard pilot model used in the assessment of the performance of the collision avoidance logic shall be that:

Source: https://magyarkozlony.hu/hivatalos-lapok/bfd0d67db9f223889f627fd618725b03526630e2/dokumentumok/d5234fd7275da04023366ab8a434989962a31bdf/letoltes