翻訳と辞書 Words near each other ・ Second-in-command ・ Second-language acquisition ・ Second-language acquisition classroom research ・ Second-language attrition ・ Second-language phonology ・ Second-level domain ・ Second-order ・ Second-order arithmetic ・ Second-order cellular automaton ・ Second-order co-occurrence pointwise mutual information ・ Second-order conditioning ・ Second-order cone programming ・ Second-order cybernetics ・ Second-order election ・ Second-order fluid ・ Second-order intercept point ・ Second-order logic ・ Second-order predicate ・ Second-order propositional logic ・ Second-order simulacra ・ Second-order stimulus ・ Second-person narrative ・ Second-rate ・ Second-term curse ・ Second-tier Mexican sugar ・ Second-tier sourcing ・ Second-wave feminism ・ Seconda B ・ Seconda Categoria ・ Seconda pratica Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Second-order intercept point ： ウィキペディア英語版 Second-order intercept point The Second Order Intercept Point, also known as the SOI, IP2, or IIP2 (Input Intercept Point), is a measure of linearity that quantifies the second-order distortion generated by nonlinear systems and devices. Examples of frequently used devices that are concerned with this measure are amplifiers and mixers. It is related to the third-order intercept point, which is generally used for quantifying degree of nonlinearity of a nonlinear system or it can also be used to estimate the nonlinear products present at the output of such a system. ==Definition== At low power levels, the fundamental output power rises in a one-to-one ratio (in terms of dB) of the input power, while the second-order output power rises in a two-to-one ratio. If the input power is high enough for the device to reach saturation, the output power flattens out in both the first- and second-order cases. The second order intercept point is the output power point at which the extrapolated first- and second-order lines intersect on a plot, since the actual power levels will flatten off due to saturation at much lower power level typically. In other words, the response is assumed to be perfect all the way to infinity. There are actually values for both the input and output SOI (known as the ISOI & OSOI or IIP2 & OIP2) of a device or system, being related by the small signal gain of the device or system. The OSOI in dB is simply the ISOI in dB plus the small signal gain of the device or system. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Second-order intercept point」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.