Process for en route aircraft conflict alert determination and p

Details Process for en route aircraft conflict alert determination and p Process for en route aircraft conflict alert determination and p

1986-07-28

1989-06-13

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Position indicating

342 29, 342 30, 364461, G01S 302

Patent

active

048396583

ABSTRACT:
A process is provided for establishing when selected pairs of airborne aircraft are in en route conflict or are in potential en route conflict. The process includes a number of "filtering" steps arranged in three branches. At each step, different conditions, such as height separation, lateral separation, height convergence, lateral convergence and "look-ahead" projections are examined for each aircraft pair. Criteria are established for each "filtering" step such that aircraft pairs not passing the filter to the next step are exited as either "no conflict", "current conflict" as "potential conflict". Sixteen such filtering steps are provided, one of which establishes a "current conflict" status and four of which establish a "potential conflict" status.

REFERENCES:
patent: 3808598 (1974-04-01), Carter
patent: 4359733 (1982-11-01), O'Neill
patent: 4623966 (1986-11-01), O'Sullivan
Hughes Proprietary Engineering Notebook Entries 5.3.12, 7/85.
Hughes Proprietary Engineering Notebook Entries 5.2.12.2, 9/85.
Computer Program Functional Specifications for En Route Conflict Alert, Oct. 1975, The MITRE Corporation-MITRE Tech. Report MTR-7061.

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