Revisit of radar cross section enhancement for two types of radar systems

Liang Yu Ou Yang, Ming Fa Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In recent decades, the fever issue in radar research is how to reduce radar cross section (RCS) of specific targets like fighters. In regard to the other aspect, to increase the detection probability of air targets is also a highlighting feature for military surveillance radars. In this work, RCS of a typical aircraft target for a monostatic radar system in very high frequency (VHF: 30-300 MHz) band and for a bistatic one in X band (8-12 GHz) are investigated. According to the electromagnetic theory, since the RCS of the aircraft in VHF band is within Mie region; the resonant phenomenon of the RCS is observed so the RCS is enhanced and the polarization effect is also described. For the bistatic radar operating in X band, there is also an apparent enlargement of the bistatic RCS at certain incident angles. Two numerical electromagnetism techniques - integrated equation (IE) solver based on moment of method (MoM) and shooting and bouncing ray (SBR) solver based on ray model, are respectively used to calculate RCSs in VHF and X bands for efficacy and accuracy. A guideline to choose an appropriate simulation method in a certain frequency regime is proposed to increase the calculation efficiency and maintain the fidelity of evaluation. The simulated results reveal that these two radar systems indeed have the advantage of detecting stealthy or small targets.

Original languageEnglish
Title of host publicationRadar Sensor Technology XXIV
EditorsKenneth I. Ranney, Ann M. Raynal
ISBN (Electronic)9781510635937
StatePublished - 2020
EventRadar Sensor Technology XXIV 2020 - None, United States
Duration: 27 Apr 20208 May 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceRadar Sensor Technology XXIV 2020
Country/TerritoryUnited States


  • Bistatic
  • Integral equation
  • Radar cross section
  • Shooting and bouncing ray
  • Stealthy target
  • Very high frequency


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