多周期的

In this dissertation, digital lock-in detection techniques under integer period sampling and non-integer period sampling are separately investigated (1) Under integer period sampling, digital signal sequence is acquired through sampling the measured signal, but digital reference sequence is acquired through mathematical operation, then digital lock-in detection can be realized by calculating crosscorrelation function of digital signal sequence and digital reference sequence Harmonic measure is also analyzed, and a method of measuring harmonic of a periodic signal under aliasing is put forward.

本文对使用采样ADC把模拟信号转换为数字信号并通过计算数字信号的相关函数来实现锁定检测的技术进行了研究，在此基础上设计了一个多功能的数字LIA并在一些科学实验中进行了应用。本文对整周期采样和非整周期采样时的数字锁定检测技术分别进行了研究。(1)在整周期采样时，对被测信号进行采样得到信号序列，而参考序列由数学运算得到，通过计算信号序列和参考序列的互相关函数就可实现锁定检测。

A new measurement method for nutation cycle has been put forward with the measuring theory of non contact vertical target.

提出了一种新的测量弹丸初始弹道章动周期的方法，采用非接触式光学立靶测量原理测量弹丸章动周期测量弹丸通过立靶的瞬时位置，计算出弹丸章动角，根据多组章动角数据获得弹丸的章动周期并提出了实现这一目标的测量系统的组成与功能，对系统的攻角测量准确度进行了分析

A force-directed scheduling algorithm for optimized peak power is proposed based on single cycle operation and multi-cycle operation.

提出了基于单周期操作和多周期操作的峰值功耗优化的力引导调度算法。

Results show that there are multi-time scale periodic variations in AOI, the temperature and precipitation in Northwest China with significant syntonic periods of qausi-3 a between AOI and the precipitation, while the multi-time scale correlations between AOI and the temperature are quasi-2 a, 3-5 a and about 8-11 a with the strongest coherency in 8-11 a syntonic period. The influence of AO on temperature is more remarkable than that on precipitation in Northwest China for the interaction of their interdecada1 variation.

结果表明，AOI、西北地区降水和气温变化都存在着不同尺度的周期振荡，西北地区降水与AOI之间存在准3 a尺度的显著共振周期，而AOI与西北地区气温变化的多时间尺度相关表现为准2a、3~5 a和8~11 a左右的显著相关振荡且以8~11 a共振周期的凝聚性最强；AO对西北地区气温变化的影响比对降水的影响更显著，与其年代际尺度的相互作用有关。

By means of thermo—elastic-plastic finitive element method, the thermo—mechanical loading chart of the ingot mould in working cycle is obtained; with this chart as a control factor, multicycle experiment is carried out on a thermo—mechanical simulater, resembling the circumstance of the real working condition.

即用热弹塑性有限元法获得钢锭模一个使用周期内的热—力载荷谱，在热力模拟实验机上用该热—力载荷谱控制进行多周期模拟实验分析。

Through the single chip computer controlling the synchronous gate, actualizes the measured signal and standard signal's synchronous measure in strobe time. For improving accuracy, it turns the function of frequency count into measuring period and actualizes equal accuracy measure by adopting the technology of the Multicycle Synchro-measuring.

通过单片机对同步门的控制，使被测信号和标准信号在闸门时间内同步测量，为了提高精度，将传统的测频功能转为测周期，采用多周期同步测量技术，实现了等精度测量。

Compared with tranditional methods, it is not too optimistic or pessimistic, fit for the exact timing of high-speed circuit design. Anda retiming scheme based on the above method is also presented to optimize the timing behavior of sequential circuits.

同传统方法相比，本方法计算出的最小周期既能保证电路的正确计算，又不至于保守，而且能同时计算出组合逻辑部分的延迟；然后从时序电路的波形多项式出发，进一步给出了多周期敏化的最小时钟周期确定方法，适用于有苛刻定时要求的环境。

In this s cheme, when model integration proceeds to the period of analogue updating, multiple reference states are reselected and optimal forecast vectors are est i mated from multiforecasts produced by the analoguedynamical model using the hy perplane approximation method. Such a "selectionestimation" procedure is peri od ically repeated until the entire forecast is completed.

这一方法通过引入相似更新周期的新概念，在预报进行到相似更新周期时重新选取多个参考态，并采用超平面近似法将相似动力模式产生的多个预报估计成最佳预报向量，这样的&选取-估计&过程循环往复，从而完成整个时段的预报。

The Multi-stage Response Time is coming to be the core competition of the SC increasingly; however, the research of the optimization of logistic response time by LRP is still a vacuum.

目前在多阶响应周期日益成为供应链核心竞争力重要组成部分的今天，对于利用LRP优化物流响应周期的研究依然是空白。

Due to the diversification of market consumption, production in large quantities by type and less variety, long-period to the low-volume, multi-species, the direction of short-cycle development.

由于市场消费的多样化，生产类型正由大批量、少品种、长周期向小批量、多品种、短周期的方向发展。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了