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題名 | An Advanced Updating Increment to Speed-Up the Measurement of AC Skin Impedance Based on a Fuzzy Inference Approach=以模糊推論機為基礎的前進更新增量法來加速交流膚阻抗之量測 |
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作者 | 張保榮; Chang, Bao R.; |
期刊 | 高苑學報 |
出版日期 | 19960200 |
卷期 | 5:1 1996.02[民85.02] |
頁次 | 頁1-5 |
分類號 | 448.537 |
語文 | eng |
關鍵詞 | 模糊推論; 前進更新增量法; 交流膚阻抗; 量測; |
中文摘要 | 傳統方法使用從直流到一百萬赫茲寬頻帶的離線式,估計交流膚阻抗,雖然估計 值夠精確,但是缺乏快速即時效果。一種利用模糊推論機為基礎的直接式量測交流膚阻抗, 其測量比傳統方式快,因為只需要單一高頻輸入信號,且採用即時線上計算方法。然而,如 何挑選一適當的增量更新法,使其在本問題中,能有高效率的計算表現,是本論文所著重探 討的地方。因此,在本文中提出一種前進式更新增量法,來加速以模糊推論機為基礎的膚阻 抗計算。 |
英文摘要 | Conventional methods for determining AC skin impedance with a wide range of frequency process DC to 1MHz resulting from the off-line estimation are accurate but lack real-time convenience. In our previous proposed methods, the direct measurement is faster than conventional methods because it uses a real-time. on-line measurement and computation, and requires only one high frequency input sifnal. However, the algorithm to specify the sutiable updating value (the defuzzification output multiplied by a gain) in fuzzy inference system is not unique, and the selecting an appropriate updating method for the estimation process of AC skin impedance in fuzzy inference system is necessitated. In order to speed-up measurement, an advanced updating gain, which has a significant effect of the time-performance, is introduced in the real-time analysis of AC skin impedance based on a fuzzy inference system. |
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