Accession Number : ADA114655

Title :   Reduction and Analysis of Mode C Altitude Data Collected at High Altitudes Over the Continental United States.

Descriptive Note : Final rept. Sep 77-Apr 78,


Personal Author(s) : Rigolizzo,Robert

PDF Url : ADA114655

Report Date : Mar 1982

Pagination or Media Count : 101

Abstract : This report describes the reduction and analysis of mode C altitude data collected over the en route centers of Cleveland, Ohio; Memphis, Tennessee; and Albuquerque, New Mexico. The data were gathered under the aegis of the separation standards program primarily for the study of lateral navigation performance over the continental United States at high altitudes. This study provides a procedure for estimating the vertical flight technical error as evidenced from mode C altitude data recorded at the en route centers. It does not account for basic altimeter system error or flight technical error biases and/or fluctuations that are not observable in the ground-derived mode C reported altitude. The data are fitted to six different analytical distributional forms. The effect that data quantization has on the estimation of the parameters of the distributions is examined. Then statistical tests are performed to evaluate the appropriateness of each distributional model in representing the histogram of the mode C deviations. A preliminary analysis is conducted to investigate the association between mode C altitude and aircraft environmental performance characteristics commonly utilized in evaluating separation criteria, as well as identifying aircraft attributes that are of major interest when evaluating vertical flight technical error. (Author)

Descriptors :   *Flight paths, *Vertical orientation, *Commercial aviation, Separation, High altitude, Transmeridian flights, Data acquisition, Data processing, Test methods, Error analysis, Data reduction, Data management, Commercial aircraft, Digital systems, Mission profiles, Tables(Data), Graphs, Standards, Specifications, Test and evaluation, Systems analysis, United States

Subject Categories : Civilian Aircraft
      Commercial and General Aviation

Distribution Statement : APPROVED FOR PUBLIC RELEASE