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논문

전체
A Study on the Enhancement of Detection Performance of Space Situational Awareness Radar System
  • 최은정;이종현;조성기;문현욱;염재명;유지웅;박장현;조중현
  • 2018-12-15
  • Journal of Astronomy and Space Sciences(한국우주과학회지) 35 4 : 279~286
Radar sensors are used for space situational awareness (SSA) to determine collision risk and detect re-entry of space objects. The capability of SSA radar system includes radar sensitivity such as the detectable radar cross-section as a function of range and tracking capability to indicate tracking time and measurement errors. The time duration of the target staying in a range cell is short; therefore, the signal-to-noise ratio cannot be improved through the pulse integration method used in pulse-Doppler signal processing. In this study, a method of improving the signal-to-noise ratio during range migration is presented. The improved detection performance from signal processing gains realized in this study can be used as a basis for comprehensively designing an SSA radar system.