Real-time resource allocation is crucial for phased array radar to undertake multi-task with limited resources,such as the situation of multi-target tracking,in which targets need to be prioritized so that resources c...Real-time resource allocation is crucial for phased array radar to undertake multi-task with limited resources,such as the situation of multi-target tracking,in which targets need to be prioritized so that resources can be allocated accordingly and effectively.A three-way decision-based model is proposed for adaptive scheduling of phased radar dwell time.Using the model,the threat posed by a target is measured by an evaluation function,and therefore,a target is assigned to one of the three possible decision regions,i.e.,positive region,negative region,and boundary region.A different region has a various priority in terms of resource demand,and as such,a different radar resource allocation decision is applied to each region to satisfy different tracking accuracies of multi-target.In addition,the dwell time scheduling model can be further optimized by implementing a strategy for determining a proper threshold of three-way decision making to optimize the thresholds adaptively in real-time.The advantages and the performance of the proposed model have been verified by experimental simulations with comparison to the traditional twoway decision model and the three-way decision model without threshold optimization.The experiential results demonstrate that the performance of the proposed model has a certain advantage in detecting high threat targets.展开更多
Fluorescence lifetime provides a third independent dimension of information for the reso-lution of total luminescence spectra of multicomponent mixtures. The incorporation of this pa-rameter into the Excitation-Emissi...Fluorescence lifetime provides a third independent dimension of information for the reso-lution of total luminescence spectra of multicomponent mixtures. The incorporation of this pa-rameter into the Excitation-Emission Matrix (EEM) by the phase-modulation technique resultsin a three-dimensional Excitation-Emission-Frequency Array (EEFA). Multicomponent analysisbased on the three-dimensional EEFA brings a qualitative change for the resolved spectra, i.e.,individual spectra can be uniquely resolved, which is impossible with any two-dimensional anal-ysis. In this paper, we present a method for analyzing the EEFA. We show mathematicallythat with the three-dimensional analysis of the EEFA individual spectra and lifetimes can be ob-tained. Our algorithm is developed in mathematical detail and demonstrated by its applicationto a two-component mixture.展开更多
基金the Aeronautical Science Foundation of China(2017ZC53021)the Open Project Fund of CETC Key Laboratory of Data Link Technology(CLDL-20182101).
文摘Real-time resource allocation is crucial for phased array radar to undertake multi-task with limited resources,such as the situation of multi-target tracking,in which targets need to be prioritized so that resources can be allocated accordingly and effectively.A three-way decision-based model is proposed for adaptive scheduling of phased radar dwell time.Using the model,the threat posed by a target is measured by an evaluation function,and therefore,a target is assigned to one of the three possible decision regions,i.e.,positive region,negative region,and boundary region.A different region has a various priority in terms of resource demand,and as such,a different radar resource allocation decision is applied to each region to satisfy different tracking accuracies of multi-target.In addition,the dwell time scheduling model can be further optimized by implementing a strategy for determining a proper threshold of three-way decision making to optimize the thresholds adaptively in real-time.The advantages and the performance of the proposed model have been verified by experimental simulations with comparison to the traditional twoway decision model and the three-way decision model without threshold optimization.The experiential results demonstrate that the performance of the proposed model has a certain advantage in detecting high threat targets.
文摘Fluorescence lifetime provides a third independent dimension of information for the reso-lution of total luminescence spectra of multicomponent mixtures. The incorporation of this pa-rameter into the Excitation-Emission Matrix (EEM) by the phase-modulation technique resultsin a three-dimensional Excitation-Emission-Frequency Array (EEFA). Multicomponent analysisbased on the three-dimensional EEFA brings a qualitative change for the resolved spectra, i.e.,individual spectra can be uniquely resolved, which is impossible with any two-dimensional anal-ysis. In this paper, we present a method for analyzing the EEFA. We show mathematicallythat with the three-dimensional analysis of the EEFA individual spectra and lifetimes can be ob-tained. Our algorithm is developed in mathematical detail and demonstrated by its applicationto a two-component mixture.
