Výsledky vyhledávání

Akademický článek

Small Target Detection in Sea Clutter Background Based on Tsallis Entropy of Doppler Spectrum

Autor: CHEN Shichao, LUO Feng, HU Chong, NIE Xueya

Publikováno v: Leida xuebao, Vol 8, Iss 3, Pp 344-354 (2019)

According to the different concentration levels of Doppler spectrum between sea clutter and target, small target in sea clutter background can be detected using Shannon entropy. However, Shannon entropy is merely a special case of Tsallis entropy and

Externí odkaz: https://doaj.org/article/789de05fd1184e5f9da191d967f2ea0a

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Akademický článek

Weighted Adaptive Step Coherent Integration Method for Maneuvering Target Based on Dynamic Programming

Autor: Chen Shuailin, Luo Feng, Zhang Linrang, Hu Chong, Chen Shichao

Publikováno v: Leida xuebao, Vol 6, Iss 3, Pp 309-315 (2017)

In allusion to the coupling relationship among radial velocity variation, range migration, and Doppler spread of a maneuvering target, a Dynamic Programing (DP)-based Weighted Adaptive Coherent Integration (DPWACI) detection method is proposed. The t

Externí odkaz: https://doaj.org/article/e9e8dd6b346a4302957ceadcfa6bcc45

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Akademický článek

Design and Optimization of Six-bar Leg-supporter Mechanism

Autor: Hu Chong, Huang Songtan, Ying Fuqiang, Duan Lijiang

Publikováno v: Jixie chuandong, Vol 41, Pp 164-168 (2017)

For the most of the leg-supporter mechanism of leisure chairs,it can’t run smoothly during the movement and hard to keep working condition etc. Aiming at these problems,a new six-bar leg-supporter mechanism is designed based on the theory of ergono

Externí odkaz: https://doaj.org/article/10cb807368194e8d9e67dd6a6c2f312a

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