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| 1 | A measurement-driven adaptive probability hypothesis density filter for multitarget tracking显示文摘This paper studies the dynamic estimation problem for multitarget tracking. A novel gating strategy that is based on the measurement likelihood of the target state space is proposed to improve the overall effectiveness of the probability hypothesis density(PHD) filter. Firstly, a measurement-driven mechanism based on this gating technique is designed to classify the measurements. In this mechanism, only the measurements for the existing targets are considered in the update step of the existing targets while the measurements of newborn targets are used for exploring newborn targets. Secondly, the gating strategy enables the development of a heuristic state estimation algorithm when sequential Monte Carlo(SMC) implementation of the PHD filter is investigated, where the measurements are used to drive the particle clustering within the space gate.The resulting PHD filter can achieve a more robust and accurate estimation of the existing targets by reducing the interference from clutter. Moreover, the target birth intensity can be adaptive to detect newborn targets, which is in accordance with the birth measurements. Simulation results demonstrate the computational efficiency and tracking performance of the proposed algorithm. | Si Weijian Wang Liwei Qu Zhiyu | 2015 | Chinese Journal of Aeronautics2015，28，6： | 9 |
| 2 | New method for passive radar seeker to antagonize non-coherent radar decoy显示文摘Using super resolution direction of arrival(DOA) estimation algorithm to reduce the resolution angle is an effective method for passive radar seeker(PRS) to antagonize non-coherent radar decoy.Considering the power and correlation property between radar and non-coherent decoy,an improved subspace DOA estimation method based on traditional subspace algorithm is proposed.Because this new method uses the invariance property of noise subspace,compared with traditional MUSIC algorithm,it shows not only better resolution in condition of closely spaced sources,but also superior performance in case of different power or partially correlated sources.Using this new method,PRS can distinguish radar and non-coherent decoy with good performance.Both the simulation result and the experimental data confirm the performance of the method. | Weijian Si,Xicai Si,and Zhiyu Qu College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,P.R.China | 2010 | Journal of Systems Engineering and Electronics2010，21，3： | 4 |
| 3 | A New Approach for Estimating the Number of Sources under the Coexis- tence of Circular and Various Noncircular Sources 显示文摘 | Si Weijian Zhu Tong Zhang Mengying | 2013 | Circuits Systems and Signal Processing2013，32，6： | 1 |
| 4 | PRI modulation recognition and sequence search under small sample prerequisite显示文摘Pulse repetition interval(PRI)modulation recognition and pulse sequence search are significant for effective electronic support measures.In modern electromagnetic environments,different types of inter-pulse slide radars are highly confusing.There are few available training samples in practical situations,which leads to a low recognition accuracy and poor search effect of the pulse sequence.In this paper,an approach based on bi-directional long short-term memory(BiLSTM)networks and the temporal correlation algorithm for PRI modulation recognition and sequence search under the small sample prerequisite is proposed.The simulation results demonstrate that the proposed algorithm can recognize unilinear,bilinear,sawtooth,and sinusoidal PRI modulation types with 91.43% accuracy and complete the pulse sequence search with 30% missing pulses and 50% spurious pulses under the small sample prerequisite. | ZHANG Chunjie LIU Yuchen SI Weijian | 2023 | Journal of Systems Engineering and Electronics2023，34，3： | 1 |
| 5 | Phase I and pharmacokinetic study of polymeric micelle-formulated paclitaxel in adult Chinese patients with advanced solid tumors显示文摘 | Fangfang Lv Junning Cao Jian Zhang Jun Qian Wei Peng Si Sun Wenhua Li Wen Zhang Weijian Guo Jin Li | 2014 | Cancer Chemotherapy and Pharmacology2014，，6： | 1 |
| 6 | Fast Estimation of Frequency and 2-D Doas for Cylindrical Conformal Array Antenna Using State-space and Propagator Method显示文摘 | Si Weijian Wan Liangtian Liu Lutao | 2013 | Progress in Electromagnetics Research2013，137，： | 1 |
| 7 | Spline Semidiscretization analysis for orthotropic plates and shells显示文摘 | Li Chunxiang Si Weijian Zhenyu Liu | 2003 | ASCE Journal of Engineering2003，129，1： | 1 |
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