Multistatic radar distribution geometry effects on parameter estimation accuracy

Abstract

An analysis of the parameter estimation uncertainty for the target location and velocity achievable using a single‐transmitter‐multiple‐receiver multistatic radar system is presented. A framework for establishing measures of multistatic radar parameter uncertainties by expansion of the bistatic radar parameter uncertainty measures is presented for systems containing omnidirectionally radiating nodes. The methodology uses analytical methods based on the Cramér–Rao Lower Bounds applied to scenarios in a two‐dimensional physical space with a single target exhibiting Doppler characteristics and a bistatic angle dependent radar cross‐section. A set of geometric descriptors is proposed to characterise the system, and parameter uncertainty results are reported as a function of these descriptors. The results indicate that angular separation between the transmitter and the centre of the receiver distribution is of greater importance than the quantity of receivers within the system when low uncertainty estimation capabilities are desired, though a minimum of two receivers must be available. The proportion of receivers within the system which contributed information crucial to obtaining the minimum estimation uncertainty is reported for systems containing different quantities of receivers. It was observed that, as the total number of receivers available increased, the proportion of receivers required to achieve the minimal uncertainty level reduces significantly.

Guest Editorial: Selected papers from RADAR 2022—International Conference on Radar Systems (Edinburgh, UK)

“…It has been a pleasure to guest-edit this collection, and we take this opportunity to congratulate with all authors and thank them for their contributions. Carmine Clemente 1 Alessio Balleri 2…”

“…An analysis of the parameter estimation uncertainty for the target location and velocity achievable using a singletransmitter multiple-receiver multistatic radar system is presented in Ref. [1]. The paper proposes a framework for establishing multistatic radar parameter estimation uncertainties by an expansion of the bistatic radar performance.…”