Abstract
A scheme for multitarget identification and localization using bistatic MIMO radar systems is proposed. Multitarget can be distinguished by Capon method, as well as the targets angles with respect to transmitter and receiver can be synthesized using the received signals. Thus, the locations of the multiple targets are obtained and spatial synchronization problem in traditional bistatic radars is avoided. The maximum number of targets that can be uniquely identified by proposed method is also analyzed. It is indicated that the product of the numbers of receive and transmit elements minus-one targets can be identified by exploiting the fluctuating of the radar cross section (RCS) of the targets. Cramer-Rao bounds (CRB) are derived to obtain more insights of this scheme. Simulation results demonstrate the performances of the proposed method using Swerling II target model in various scenarios.
Highlights
Multiple-input multiple-output (MIMO) radar has been recently become a hot research area for its potential advantages
Many MIMO radar schemes have been proposed to resist the fluctuations of the target radar cross section (RCS) with the spatial diversity of target scatters to get superiority with waveform diversity in MIMO radar [1], to improve detection performance [2], to create spatial beampatterns ranging from the high directionality of phased-array system to the omnidirectionallity of MIMO system with orthogonal signals through the choice of a signal cross-correlation matrix [3], or to achieve high resolution and excellent interference rejection capability with the direct application of many adaptive techniques [4]
We demonstrate the influence of the transmitted signals with three transmitted signal cases: Hadamard code pulse signals (HCP) signals, frequency Hadamard code pulse signals (FHCP) signals, and Random Binary-phased Code Pulse signals (RBCP) signals
Summary
Multiple-input multiple-output (MIMO) radar has been recently become a hot research area for its potential advantages. MIMO radar uses multiple antennas to simultaneously transmit several independent waveforms and exploit multiple antennas to receive the reflected signals. It is required that the transmitting beam and the receiving beam illuminate to the same target simultaneously to solve space synchronization problem [9]. A bistatic MIMO radar scheme of transmit spatial diversity had been proposed in [7], and the estimation performance is analyzed. A bistatic MIMO radar scheme is proposed to identify and locate multiple targets in this paper. The method proposed in this paper can parry automatically the spatial 2D angles of targets, which solves the space synchronization problem in conventional bistatic radar system. The maximum number of identified targets and Cramer-Rao bounds (CRB) for target location are analyzed in Section 4 to obtain more insights of the proposed scheme.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
