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A Joint Space-Time Array for Communication Signals-Based on a Moving Platform and Performance Analysis
Bin Yang1, Cheng Wang2, Bin Yang3
1Zhengzhou Information Science and Technology Institute, Zhengzhou 450002, China. forestsyoung@outlook.com.
Abstract:
A joint space-time array for communication signals is constructed in this paper to settle the contradiction between the performance of angle estimation and the array aperture. It introduces Doppler information caused by platform motion into the signal processing to obtain favorable performance with limited array aperture. We analyze the theoretical performance in the aspects of distinguishable source number, spatial resolution and Cramér-Rao bound (CRB), respectively. Both theoretical analysis and simulation results demonstrate that the proposed space-time array can give rise to a significant enhancement in achievable array performance.
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