Optimization of Spatiotemporal Apertures in Channel Sounding

Abstract--In this paper, we investigate the impact of the spatiotemporal aperture of a channel sounding system equipped with antenna arrays at the transmitter and receiver on the accuracy of joint estimation of Doppler frequency and bidirection. The contribution of this paper is threefold. First, we state a spatiotemporal model that can describe parallel as well as switched sounding systems. The proposed model is applicable for arbitrary layouts of the spatial arrays. To simplify the derivations, we investigate the special case of linear spatial arrays. However, the results obtained for linear arrays can be generalized to arbitrary arrays. Secondly, we give the necessary and sufficient conditions for a spatiotemporal array to yield the minimum Cram

• Type: Journal
• Year: 2008
• Where: TSP
• Authors: Troels Pedersen, Claus Pedersen, Xuefeng Yin, Bernard H. Fleury
• Keywords: Spatial Arrays, Spatiotemporal Aperture, Spatiotemporal Arrays, TSP 2008