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In this paper, a novel dual-band, dual-polarized, miniaturized and low-profile base station antenna operating in the frequency bands of 820–960 and 1710–2170 MHz is designed. Elements are arranged such that high-frequency elements are embedded in low frequency elements to reduce volume. A baffle is used to reflect the transmitted power density in the forward direction and also improve isolation between...
A novel approach to the problem of detecting a passive sensor array is proposed in this paper, which is based on the optimization of a cost function with Newton-like method. The method optimizes the DOA and power parameters of a cost function simultaneously. The algorithm can estimate DOA, power and number of sources simultaneously. Computer simulation results show that the algorithm has lower region...
To increase the capacity of mobile communications, it is important to accurately estimate the power and the directions of arrival (DOA) of sources. An efficient algorithm is proposed for this purpose with Davidon Fletcher Powell (DFP) and Broyden Fletcher Goldfarb Shanno (BFGS) algorithm. To estimate DOA and power of sources, the method optimizes the DOA and power parameters of a cost function simultaneously...
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