variation n. 1.變化,變動。 2.變量,變度,偏差。 3.【語言】語尾變化;變體,異體;【數(shù)學】變分,協(xié)變;順列;【生物學】變異,演變,變種;【音樂】變奏曲;【天文學】變差;(月的)二均差;【物理學】磁差。 a principle without variation 不變的方針[原則]。 be capable of variation 可能變化。 be liable to variation 容易變化。 These prices are subject to variation. 上列價格可能變更。 adj. -al
process n. 1.進行,經(jīng)過;過程,歷程;作用。 2. 處置,方法,步驟;加工處理,工藝程序,工序;制作法。 3.【攝影】照相制版法;照相版圖片;三原色印刷。 4.【法律】訴訟程序;法律手續(xù);被告?zhèn)髌?,傳票?5.【解剖學】(動植物機體的)突起,隆起,突。 the process of growth 生長過程。 a mental [psychological] process 心理作用。 labour-consuming process 重體力勞動。 film process 影片加工。 offset process 膠印法。 legal process 法律手續(xù)。 vermiform process 【解剖學】闌尾,蚓突。 in process 進行著 (changes in process 正在發(fā)生的變化)。 in process of time 隨著時間的推移;逐漸地。 in (the) process of 在…的過程中 (in process of construction 正在建筑中)。 serve a process on 對…發(fā)出傳票。 adj. 1.經(jīng)過特殊加工的;(用化學方法等)處理過的。 2.照相制版的;三色版的。 3.(電影鏡頭等)有幻覺效應的。 vt. 1.加工;處理,辦理;初步分類;儲藏(腌肉等);(用化學方法)處置(廢物等)。 2.用照相版影印。 3.對…提起訴訟;用傳票傳審。 a processing tax 〔美國〕 (農產品)加工稅。 a processing plant 煉油廠,石油加工廠。 vi. 〔口語〕排隊走,列隊行進 〔procession 之略〕。
In this paper , we study the clock tree optimization for the tolerance of process variation 在本篇論文中,我們研究有關于制程變異容忍度的時鐘樹最佳化方法。
Due to the concern of process variation , the delay of each clock buffer is treated as a range instead of a single value 在制程變異上面,每個時鐘緩沖器的延遲值被表示為一個范圍值。
However , in fact , zero skew or minimal skew approaches may be sensitive to process variations 然而,事實上,零時序差異或者是最小時序差異演算法所得到的時鐘樹,其時序對制程變異非常敏感。
Our optimization goal is not only to maximize the tolerance of the circuit to process variation , but also to minimize the total area of clock buffers 我們最佳化的目的,不僅是要最大化制程變異容忍度,并且要最小化整個電路時鐘緩沖器的總面積。
As manufacturing technology shrinks to the deep submicron process , the tolerance of process variation becomes an important subject in the clock tree design 摘要隨著制程技術縮小至深次微米,制程變異容忍度在時鐘樹設計上已成為一個重要的課題。
And then the optimization strategies of parameter design and surface methodology have been analysed from two respects of minimizing process bias and minimizing process variation , simultaneously other four kinds of optimization strategies resolving the compromise between these two objectives have been studied 然后,從過程偏差最小化和過程方差最小化這兩個角度分析了參數(shù)設計和曲面法的優(yōu)化策略,以及-解決這兩者沖突問題的其他四種優(yōu)化策略。
In recent years , oversampling techniques based on sigma - delta modulation are widely used to implement the interfaces between analog and digital signals in vlsi systems . this kind of technique can offer numerous advantages for the realization of high - resolution analog - to - digital converters ( adcs ) , and be insensitive to process variations . in other ways , the architecture is power - efficient means of implementing adcs 近年來,基于sigma - delta調制器的過采樣技術被廣泛的應用于模擬和數(shù)字接口電路,這種技術對實現(xiàn)高精度模數(shù)轉換器有較多優(yōu)勢,同時可以降低系統(tǒng)功耗,但對工藝要求不是很苛刻,而且采用合適的低電壓,以保證電路在低電壓下可靠的工作。
In the fifth chapter , the performance of transconductor - capacitor ( gm - c ) continuous time filter is discussed . due to process variation and parasitics , an automatic tuning is designed for center frequency and quality factor q . also , in this chapter , a two order bandpass filter with tunable is designed . the effects on filter ' s performance of the non - idealities of a cmos ota are studied and the computer simulations at the mos transistor level are carried out 第五章討論了跨導電容連續(xù)時間濾波器的性能特點,設計了一個中心頻率可調的二階帶通濾波器,為了使濾波器參數(shù)自動調整到設計標準值,從而保持其設計值的實現(xiàn)精度,論文給出了片內自校正(可調諧)環(huán)節(jié)。
Also discussed the methods on how to realize the cwt both in time - domain and frequency - domain and how to design the gm - c bandpass filter used in realization of cwt . in order to optimize the performance of gm - c filter , linearization techniques are investigated and proposed . due to process variation and parasitics , an automatic tuning is designed for center frequency / 0 and quality factor q also , in this thesis , 16 - channel analogue cmos cwt circuit has been realized 論文圍繞連續(xù)小波變換的模擬電路實現(xiàn)這一熱點問題,討論了連續(xù)小波變換的時域和頻域實現(xiàn)方法;具體分析了并行結構與串行結構的優(yōu)缺點;研究了頻域法中的跨導-電容帶通濾波器的設計;給出了改善跨導輸入級傳輸特性的線性程度并擴大線性范圍的具體方法;設計了片內自校正(可調諧)環(huán)節(jié)使濾波器參數(shù)自動調整到設計標準值;最后給出了16通道濾波器組實現(xiàn)小波變換的方法。