In this paper, we demonstrate the variation of donut-shaped depletion pattern which influenced by multiple primary aberrations. The simulation is base on a common stimulation emission of depletion (STED) system compos...In this paper, we demonstrate the variation of donut-shaped depletion pattern which influenced by multiple primary aberrations. The simulation is base on a common stimulation emission of depletion (STED) system composed by Gaussian laser and vortex phase plate. The simulation results are helpful guidelines for analyzing the aberration of depletion patterns in real situations.展开更多
In this paper, we consider the problem of irregular shapes tracking for multiple extended targets by introducing the Gaussian surface matrix（GSM） into the framework of the random finite set（RFS） theory. The Gaussi...In this paper, we consider the problem of irregular shapes tracking for multiple extended targets by introducing the Gaussian surface matrix（GSM） into the framework of the random finite set（RFS） theory. The Gaussian surface function is constructed first by the measurements, and it is used to define the GSM via a mapping function. We then integrate the GSM with the probability hypothesis density（PHD） filter, the Bayesian recursion formulas of GSM-PHD are derived and the Gaussian mixture implementation is employed to obtain the closed-form solutions. Moreover, the estimated shapes are designed to guide the measurement set sub-partition, which can cope with the problem of the spatially close target tracking. Simulation results show that the proposed algorithm can effectively estimate irregular target shapes and exhibit good robustness in cross extended target tracking.展开更多
The objective of this paper is to design and simulate a shaping amplifier circuit for silicon strip,Si(Li),CdZnTe and CsI detectors,etc.,which can be further integrated the whole system and adopted to develop CMOS-bas...The objective of this paper is to design and simulate a shaping amplifier circuit for silicon strip,Si(Li),CdZnTe and CsI detectors,etc.,which can be further integrated the whole system and adopted to develop CMOS-based application,specific integrated circuit for Front End Electronics(FEE) of read-out system of nuclear physics,particle physics and astrophysics research,etc.It's why we used only CMOS transistor to develop the entire system.A Pseudo-Gaussian shaping amplifier made by fourth-order integration stage and a differentiation stage give a result same as a true CR-RC4 filter,we perform shaping time in the range,465 ns to 2.76μs with a low output resistance and the linearity almost good.展开更多
文摘In this paper, we demonstrate the variation of donut-shaped depletion pattern which influenced by multiple primary aberrations. The simulation is base on a common stimulation emission of depletion (STED) system composed by Gaussian laser and vortex phase plate. The simulation results are helpful guidelines for analyzing the aberration of depletion patterns in real situations.
基金supported by the National Natural Science Foundation of China(6130501761304264+1 种基金61402203)the Natural Science Foundation of Jiangsu Province(BK20130154)
文摘In this paper, we consider the problem of irregular shapes tracking for multiple extended targets by introducing the Gaussian surface matrix（GSM） into the framework of the random finite set（RFS） theory. The Gaussian surface function is constructed first by the measurements, and it is used to define the GSM via a mapping function. We then integrate the GSM with the probability hypothesis density（PHD） filter, the Bayesian recursion formulas of GSM-PHD are derived and the Gaussian mixture implementation is employed to obtain the closed-form solutions. Moreover, the estimated shapes are designed to guide the measurement set sub-partition, which can cope with the problem of the spatially close target tracking. Simulation results show that the proposed algorithm can effectively estimate irregular target shapes and exhibit good robustness in cross extended target tracking.
基金Support by the Third World Academy of Sciences (TWAS)the National Natural Science Foundation of China (No.10735060)
文摘The objective of this paper is to design and simulate a shaping amplifier circuit for silicon strip,Si(Li),CdZnTe and CsI detectors,etc.,which can be further integrated the whole system and adopted to develop CMOS-based application,specific integrated circuit for Front End Electronics(FEE) of read-out system of nuclear physics,particle physics and astrophysics research,etc.It's why we used only CMOS transistor to develop the entire system.A Pseudo-Gaussian shaping amplifier made by fourth-order integration stage and a differentiation stage give a result same as a true CR-RC4 filter,we perform shaping time in the range,465 ns to 2.76μs with a low output resistance and the linearity almost good.
