fwl 中文意思是什麼
fwl
解釋
自由水位-
In the body of the dissertation, different performance indexes are defined and analyzed based on the analysis of different types of fwl errors in digital controller, and different fwl digital controller design and realization problems are considered and solved. the major contributions of this dissertation are as follows : considering the fwl errors of controller coefficients, define and analyze the closed - loop transfer function sensitivity measure with respect to the controller coefficients, obtain the optimal controller realizations via minimizing the transfer function sensitivity measure
本論文首先對數字系統，特別是數字控制器設計與實現中的有限字長問題和非脆弱控制器設計的背景、歷史發展情況等作了簡單介紹，然後通過分析數字控制器中不同來源的有限字長誤差，定義不同的性能指標，較系統地分析並討論不同的有限字長數字控制器設計和實現問題。 -
An ideal system can be implemented in different but equivlent realizations theoretically, however, due to the finite word length ( fwl ) effects resulting from actual devices, modules or subsystems, the system performance will always deviate from the ideal performance in practice
從理論上講，一個理想系統可以有許多種完全等價的實現方案，然而，在用物理元器件、模塊或子系統實現系統時，由於存在著有限字長效應，實際系統中的性能往往要偏離理想性能。 -
2 kerr fwl. pathology of trigeminal neuralgia light and electron microscopic observation. j neurosurg 1967, 26 : 151
1陳喬爾.三叉神經痛脫髓鞘改變的光鏡和電鏡觀察。臨床與實驗病理學雜志1996 ； 12 （ 4 ） 323 ? 325 -
Looks like she ' s getting an fwl
看上去她在fwi -
Thus, the fwl effects need to be considered when a digital controller is designed and implememted
在數字控制器的設計與實現過程中，必須考慮到有限字長對系統性能的影響。 -
One approach of fwl controller study is to obtain the optimal realizations of a given fwl controller to minimize the fwl effects. an alternative approach is to design the fwl controller directly according to some given performance index. the backgrounds and a historical view of fwl problems and non - fragile controller design are presented at the beginning of the dissertation
有限字長控制器研究的一個方向是有限字長控制器的實現問題，即對于已經設計好的控制器，得到能最小化有限字長影響的控制器實現；另一個方向是直接設計一個有限字長控制器，使閉環系統能滿足一定的性能指標。
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