fpn 中文意思是什麼
fpn
解釋
不管細節部分的額頂網-
Number of 1, 500 fpn issued
1 ， 500定額罰款通知書的數目 -
The column output circuit is realized by double sample and hold circuit which can effectively decrease fpn ( fixed pattern noise )
列輸出電路採用雙采樣電路，該電路能有效地消除固定模式噪聲。 -
Every column in sensor array work in parallel and have their own cds noise reducing circuit. the signals after fpn reducing are output from the output buffer amplifiers
傳感陣列中各列感光單元的傳感信號并行輸出，分別由對應的相關二次采樣電路進行降噪處理，去除固定模式噪聲后的信號通過輸出緩沖放大電路進行輸出。 -
On the base of thorough analysis of fault characters, the petri net model is introduced and changed into fault petri net ( fpn ) that can be used to settle some critical problems such as complicated faults, degradation competition and one cause with multiple consequence according to the characters of fault evolvement and spreading. in order to predicate the remained life of particular machine under special working conditions, an algorithm was also providcd to analyse the timely characters of the fpn. it is demonstrated that the method provided in this paper can simulate the dynamic evolvement process more appropriate than tranditional methods such as fault tree analysis ( fta ) and can predicate the remained life of the particular machine under special working conditions
為此，深入分析了機械設備的故障特性，把以描述離散事件動態系統見長的petri網分析技術引入到機械設備剩餘壽命預測領域，並根據故障的演變和傳播特點，將petri網加以改造，提出適用於對機械設備復合故障動態演變歷程進行模擬的「故障petri網」 ，解決了「並發故障」 、 「劣化競爭」和「一因多果」等問題，並給出故障petri網的時間特性分析演算法，用於單機具體工況下的剩餘壽命預測。 -
The correlated double sampling ( cds ) circuits structure is used to reduce the fixed pattern noise ( fpn ) of the cmos sensors, and improve the signal - noise ratio ( snr ). the 256 photodiodes arrayed 4 quadrants sensor consists 16x16 active photodiodes array. correlated double sampling processing circuits, output buffer amplifiers and digital control part
針對cmos製造工藝中mos器件固定模式噪聲（ fixedpatternnoise ， fpn ）較大的不足，研究中採用了相關二次采樣（ correlateddoublesampling ， cds ）電路降低固定模式噪聲，從而提高了傳感器的信噪比（ signalnoiseratio ， snr ） 。
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