Results 101 to 110 of about 100,223 (210)

MIMO Channel Capacity Improvement Using Space Time Coding

open access: yesJournal of Engineering and Sustainable Development, 2015
Wireless communication systems play an important role in our life and society. In this paper, the different types of wireless communication systems Single Input-Single Output (SISO), Single Input-Multiple Output (SIMO), Multiple Input-Single Output ...
Raad Hamdan Thaher   +1 more
doaj  

Weighted target detector via estimated SNR in a multipath environment

open access: yesThe Journal of Engineering, 2019
Multipath effect cause serious performance degradation in low-altitude target detection. To overcome the negative multipath effect in a low-altitude environment, a novel weighted detector based on the estimated signal-to-noise ratio (ESNR) is proposed ...
Hao Zhou   +3 more
doaj   +1 more source

Moving target detection with polarimetric distributed MIMO radar in heterogeneous clutter

open access: yesThe Journal of Engineering, 2019
In this study, the authors consider the problem of moving target detection in the presence of heterogeneous clutter. The knowledge-aided method has been extended to derive the polarimetric multiple-input multiple-output (MIMO) radar detector.
Yan Xiang   +3 more
doaj   +1 more source

Design of a compact ultra-wideband MIMO antenna

open access: yesThe Journal of Engineering, 2019
A compact ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna is presented. The MIMO antenna consists of four monopoles which are printed on FR4 substrate, whose impedance bandwidth is from 2 to 12 GHz, and the isolation of two adjacent ...
Wang Youcheng   +3 more
doaj   +1 more source

Efficient and low-complexity matrix inversion scheme for massive multiple-input multiple-output systems using rapid numerical algorithms

open access: yesThe Journal of Engineering, 2019
Performances of the regularised zero forcing (RZF) precoder, rapid numerical algorithm (RNA) precoder and the truncated polynomial expansion (TPE) Precoder are compared and analysed for massive multiple-input multiple-output (MIMO) wireless system in a ...
Emmanuel Mukubwa, Oludare A. Sokoya
doaj   +1 more source

DOA estimation for sub-array MIMO radar with limited samples

open access: yesThe Journal of Engineering, 2019
The problem of DOA estimation for sub-array multiple-input multiple-output radar is concerned. Employing compressive sampling concept and the minimum mean-square error (MMSE) technology, the proposed algorithm alternates between updating sample ...
Jiaolong Shan, Tao Yuan, Guanglei Zhang
doaj   +1 more source

Home - About - Disclaimer - Privacy