Some results on characteristics of bistatic high-range resolution profiles for target classification

Abstract

This study focuses on the bistatic high-range resolution profiles (HRRPs) of high-speed and manoeuvring targets and considers how to utilise the length of the bistatic HRRP for target classification. The bistatic HRRP of a high-speed and manoeuvring target is obtained via stretch processing and motion compensation, and its distortion caused by target translation is analysed quantitatively. It is demonstrated that the distortion of bistatic HRRPs is quite different from the monostatic case. The conventional length of the bistatic HRRP cannot reflect the target length, as in the monostatic case, so a new length is defined – the bistatic bisector HRRP length – which corresponds to the length of the target's projection on the bisector of the bistatic angle. Additionally, the sensitivity of the bistatic HRRP to the target aspect and location is discussed and the bistatic bisector HRRP length is proved to be applicable for target classification through computer simulation and electromagnetic calculation.