Association Journal of CSIAM
Supervised by Ministry of Education of PRC
Sponsored by Xi'an Jiaotong University
ISSN 1005-3085  CN 61-1269/O1

Chinese Journal of Engineering Mathematics ›› 2023, Vol. 40 ›› Issue (4): 523-544.doi: 10.3969/j.issn.1005-3085.2023.04.002

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Modeling and Analysis of Operation Effectiveness Evaluation for TT{\&}C Equipment

LIANG Jun1,  SONG Jianguo1,  CHEN Jiaming1,  LIU Jianye2,  LI Xiaochao3,  LEI Han1   

  1. 1. China Xi'an Satellite Control Center, Xi'an 710043;
    2. 32039 Unit, People's Liberation Army of China, Beijing 102399;
    3. 63620 Unit, People's Liberation Army of China, Jiuquan 735214
  • Received:2020-09-03 Accepted:2023-05-22 Online:2023-08-15 Published:2023-10-15
  • Supported by:
    The National Natural Science Foundation of China (91638202).

Abstract:

In recent years, the number of spacecraft has rapidly increased, the types of telemetry track and command (TT{\&}C) equipment have become more diverse, and the variety of TT{\&}C requirements has become increasingly diverse, making TT{\&}C become a complex system engineering problem. At present, the evaluation of the daily operation effectiveness of TT{\&}C equipment is still in the stage of manual statistical data and one-sided calculation of a single index, which lacks a systematic and effective evaluation model and is difficult to comprehen-sively reflect the actual operation effectiveness of TT{\&}C equipment. In order to scientifically and accurately analyze the daily operation effectiveness for TT{\&}C equipment, the evaluation modeling is studied from different time scales of time period, day and month in this paper. Based on the evaluation indexes such as load rate, idle availability rate and idle fragment rate, the evaluation model of average operation effectiveness for TT{\&}C equipment in the geographical region is first constructed. Second, the evaluation model of daily operation effectiveness for the TT{\&}C equipment with the largest contribution of load duration in each region is established. Finally, a significance statistical test calculation formula for the operation effectiveness of TT{\&}C equipment is further constructed, which can effectively test whether there are significance in the same evaluation model between different TT{\&}C regions or different TT{\&}C equipment. In addition, the operation data of 21 TT{\&}C equipment in the west, east, south and north of the space TT{\&}C network are used for operation effectiveness evaluation and analysis in the simulation case, which provides scientific and effective evaluation means support for further improving the effectiveness of TT{\&}C equipment in space TT{\&}C system.

Key words: TT{\&}C equipment, operation effectiveness evaluation, load rate, idle availability rate, idle fragment rate

CLC Number: