variation n. 1.变化,变动。 2.变量,变度,偏差。 3.【语言】语尾变化;变体,异体;【数学】变分,协变;顺列;【生物学】变异,演变,变种;【音乐】变奏曲;【天文学】变差;(月的)二均差;【物理学】磁差。 a principle without variation 不变的方针[原则]。 be capable of variation 可能变化。 be liable to variation 容易变化。 These prices are subject to variation. 上列价格可能变更。 adj. -al
process n. 1.进行,经过;过程,历程;作用。 2. 处置,方法,步骤;加工处理,工艺程序,工序;制作法。 3.【摄影】照相制版法;照相版图片;三原色印刷。 4.【法律】诉讼程序;法律手续;被告传票,传票。 5.【解剖学】(动植物机体的)突起,隆起,突。 the process of growth 生长过程。 a mental [psychological] process 心理作用。 labour-consuming process 重体力劳动。 film process 影片加工。 offset process 胶印法。 legal process 法律手续。 vermiform process 【解剖学】阑尾,蚓突。 in process 进行着 (changes in process 正在发生的变化)。 in process of time 随着时间的推移;逐渐地。 in (the) process of 在…的过程中 (in process of construction 正在建筑中)。 serve a process on 对…发出传票。 adj. 1.经过特殊加工的;(用化学方法等)处理过的。 2.照相制版的;三色版的。 3.(电影镜头等)有幻觉效应的。 vt. 1.加工;处理,办理;初步分类;储藏(腌肉等);(用化学方法)处置(废物等)。 2.用照相版影印。 3.对…提起诉讼;用传票传审。 a processing tax 〔美国〕 (农产品)加工税。 a processing plant 炼油厂,石油加工厂。 vi. 〔口语〕排队走,列队行进 〔procession 之略〕。
In this paper , we study the clock tree optimization for the tolerance of process variation 在本篇论文中,我们研究有关于制程变异容忍度的时钟树最佳化方法。
Due to the concern of process variation , the delay of each clock buffer is treated as a range instead of a single value 在制程变异上面,每个时钟缓冲器的延迟值被表示为一个范围值。
However , in fact , zero skew or minimal skew approaches may be sensitive to process variations 然而,事实上,零时序差异或者是最小时序差异演算法所得到的时钟树,其时序对制程变异非常敏感。
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 我们最佳化的目的,不仅是要最大化制程变异容忍度,并且要最小化整个电路时钟缓冲器的总面积。
As manufacturing technology shrinks to the deep submicron process , the tolerance of process variation becomes an important subject in the clock tree design 摘要随著制程技术缩小至深次微米,制程变异容忍度在时钟树设计上已成为一个重要的课题。
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,从过程偏差最小化和过程方差最小化这两个角度分析了参数设计和曲面法的优化策略,以及-解决这两者冲突问题的其他四种优化策略。
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 近年来,基于sigma - delta调制器的过采样技术被广泛的应用于模拟和数字接口电路,这种技术对实现高精度模数转换器有较多优势,同时可以降低系统功耗,但对工艺要求不是很苛刻,而且采用合适的低电压,以保证电路在低电压下可靠的工作。
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 第五章讨论了跨导电容连续时间滤波器的性能特点,设计了一个中心频率可调的二阶带通滤波器,为了使滤波器参数自动调整到设计标准值,从而保持其设计值的实现精度,论文给出了片内自校正(可调谐)环节。
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 论文围绕连续小波变换的模拟电路实现这一热点问题,讨论了连续小波变换的时域和频域实现方法;具体分析了并行结构与串行结构的优缺点;研究了频域法中的跨导-电容带通滤波器的设计;给出了改善跨导输入级传输特性的线性程度并扩大线性范围的具体方法;设计了片内自校正(可调谐)环节使滤波器参数自动调整到设计标准值;最后给出了16通道滤波器组实现小波变换的方法。