Enhancement of system performance in directly modulated metro-WDM systems by a spectral filtering method

Sung-Bum Park; Chang-Hee Lee

doi:10.1049/el:20020300

Enhancement of system performance in directly modulated metro-WDM systems by a spectral filtering method

Electronics Letters ◽

10.1049/el:20020300 ◽

2002 ◽

Vol 38 (9) ◽

pp. 418 ◽

Cited By ~ 5

Author(s):

Sung-Bum Park ◽

Chang-Hee Lee

Keyword(s):

System Performance ◽

Spectral Filtering ◽

Filtering Method

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A spectral filtering method based on hybrid wiener filters for speech enhancement

Speech Communication ◽

10.1016/j.specom.2008.09.003 ◽

2009 ◽

Vol 51 (3) ◽

pp. 259-267 ◽

Cited By ~ 28

Author(s):

Huijun Ding ◽

Ing Yann Soon ◽

Soo Nee Koh ◽

Chai Kiat Yeo

Keyword(s):

Speech Enhancement ◽

Spectral Filtering ◽

Filtering Method ◽

Wiener Filters

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Study on Transformation of Kuznetsov-Ma Soliton to Quasi-Fundamental Soliton Based on Spectral-Filtering Method

Acta Optica Sinica ◽

10.3788/aos201636.0619002 ◽

2016 ◽

Vol 36 (6) ◽

pp. 0619002 ◽

Cited By ~ 1

Author(s):

杨光晔 Yang Guangye ◽

李禄 Li Lu ◽

田晋平 Tian Jinping

Keyword(s):

Spectral Filtering ◽

Filtering Method

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Daytime star detection device using polarization and spectral filtering method

10.1117/12.866874 ◽

2010 ◽

Author(s):

Gongpu Lan ◽

Wenli Ma ◽

Feng Cheng

Keyword(s):

Spectral Filtering ◽

Filtering Method

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Negative Input Shaping: Eliminating Overcurrenting and Maximizing the Command Space

Journal of Dynamic Systems Measurement and Control ◽

10.1115/1.2957646 ◽

2008 ◽

Vol 130 (6) ◽

Cited By ~ 5

Author(s):

Khalid L. Sorensen ◽

Aayush Daftari ◽

William E. Singhose ◽

Keith Hekman

Keyword(s):

Rise Time ◽

System Performance ◽

Three Dimensional ◽

Mitigation Strategies ◽

Input Shaping ◽

Bridge Crane ◽

Flexible Systems ◽

Filtering Method ◽

Dimensional Simulation ◽

Insight Into

Input shaping is a filtering method used for reducing oscillation in flexible systems. A class of these filters, called negative input shapers, has been developed to improve system rise-time beyond what is achievable using conventional input-shaping filters. However, negative input shapers can cause overcurrenting and subsequent system oscillation, when used with certain reference commands. This class of reference commands is examined in the context of the command space. The command space represents the space of all possible signals that may be issued to a system. It provides insight into how overcurrenting occurs, how overcurrenting can be mitigated, and the influence that mitigation strategies have on system performance. Two overcurrenting mitigation strategies are presented. The operational effects of overcurrenting and overcurrenting mitigation are evaluated using a three-dimensional simulation of a bridge crane, and experimental results from a 10ton industrial bridge crane.

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