Accession Number : ADA304279

Title :   A Study of Technology for Detection of Nonluminous Artificial Satellites in Daylight. (Baitian Feizifaguang Tianti Mubiao Tance Jishu De Yanjiu),

Corporate Author : NATIONAL AIR INTELLIGENCE CENTER WRIGHT-PATTERSON AFB OH

Personal Author(s) : He, Cheng ; Zhu, Qixiang

PDF Url : ADA304279

Report Date : 21 DEC 1995

Pagination or Media Count : 15

Abstract : In this paper, the authors discuss the detection limits of systems for detecting nonluminous artificial satellites in daylight, as well as the relationship of target contrast and signal-to-noise ratio to artificial satellite characteristics, sky background characteristics, optical system parameters, and CCD (charge-coupled device) parameters. The authors discuss in depth the effects of spectral filtering technology on detection limits, contrast, and signal-to-noise ratio. Results of numerical simulations demonstrate that spectral filtering technology can increase the target satellite's optical contrast by 4 to 8 times, raise the target satellite's signal-to-noise ratio by 1.3 to 2.3 times, and enhance the system's limit detection brightness by 0.4 to 0.7 visual magnitude. (AN)

Descriptors :   *OPTICAL DETECTION, *ARTIFICIAL SATELLITES, COMPUTERIZED SIMULATION, CONTRAST, ELECTROOPTICS, SIGNAL TO NOISE RATIO, OPTICAL ANALYSIS, QUANTUM EFFICIENCY, PHOTONS, TRANSLATIONS, NOISE REDUCTION, TARGET DETECTION, PIXELS, BACKGROUND RADIATION, SPECTRUM ANALYSIS, CHINA, DAYLIGHT, OPTICAL FILTERS, CHINESE LANGUAGE, SKY BRIGHTNESS, CHARGE COUPLED DEVICES, SHOT NOISE.

Subject Categories : Optical Detection and Detectors
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE