查询词典 stochastic filtering

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

The rotation of the drum produces a relative motion between the filtering screen and the surrounding water making the filtering screen self-cleaning. Nauplii and rotifers thus could be concentrated at high speed to a high density with little damage.

滚筒的旋转会在滤网与周围的水体间产生相对运动而使得滤网面自净，丰年虾无节幼虫与轮虫因此可以在高速下被浓缩到高密度而不会有太大的损伤。

A new particle filtering algorithm was proposed, which introduced Swarm Intelligence niching technique into particle filtering in order to enhance particles diversity and search ability and convert above issues into a multi-modal optimization so that measure information is fully. As a result, particles can move towards the high likelihood areas which increase precision for system state estimation.

提出了一种新的粒子滤波算法，将群智能算法中的小生境技术引入粒子滤波中，增强粒子的多样性和寻优能力，同时将上述问题转化为多模寻优问题从而充分应用观测信息，使得采样后的粒子朝着高似然区域移动，从而有效地提高系统状态估计精度。

The invention discloses a treating method of tail water membrane filtering condensation fluid in chemical industry park, the steps of which are that the pre-treated membrane filtering condensation fluid goes through a device filled with resinous adsorbent under the common temperature and a flow quantity of 0.5-8BV / h, the absorbed water can be discharged after neutralizing with small capacity of alkali, desorbing and regenerating the resin by natrium hydroxydatum solution with the flow capacity of the desorbing agent is 0.5-3.0BV / h, the high concentration desorbing fluid disposes safely and the low concentration desorbing fluid can be periodically used to preparing next pluralities of desorbing agent.

本发明公开了一种化工园区尾水膜滤浓缩液的治理方法。其步骤为：将预处理后的膜滤浓缩液在常温和0.5～8BV/h的流量条件下，通过装填有树脂吸附剂的装置，吸附出水加少量碱中和后即可排放；将上述树脂用氢氧化钠溶液脱附再生，脱附剂流量为0.5～3.0BV/h，高浓度脱附液安全处置，低浓度脱附液可用于配制下一批脱附剂循环套用。

Being used widely, RETs have become the focus of the research in the global IC industry. Spatial filtering technologies including Off Axis Illumination and Pupil filtering are new RETs.

分辨率增强技术的广泛应用一定程度上解决了亚波长光刻中的许多可制造性问题，因此成为了人们研究的重点。

The system are composed of a DPFNN based decision making system for filtering schelme and tunable filtering network with tunning control circuits.

在智能可调滤波系统中，首次提出了一类由DPFNN滤波方案决策网络和可调滤波网络构成的智能滤波系统。

This paper firstly introduces three filtering approaches of white noise, which are least square method, filtering algorithm based on automatic regressive mode and Kalman filter separately, and carries out practical example emulations using these algorithms.

本文首先介绍了白噪声下的滤波方法，分别是最小二乘法、基于自回归模型的滤波算法和卡尔曼滤波法，并对这些算法分别进行了实例仿真。

Strengthening, reinforcement, filtering, drain panel for soft, ground handling, geodetic cloth for separating and filtering, artificial lawn for, playground, drain, cloth, roadbed cloth for railway and highway, waterproof material for roof, dyke fortifying cloth, cloth for harbor base, substrate for asphalt, felt, lining cloth for sewer and irrigation canal, soundproof, heat-resisting, material for building

用途：加固、过滤、软基处理排水板、分离、排水用土工布、球场人造草坪、排水布、铁路、公路路基布、屋面防水材料、护堤布、港口基础用布、油毛毡底、下水道、灌渠内衬布、建筑隔音、防热材料等。

Time, bandwidth and memory resources are occupied to result in the link block as well as the deluge of unhealthy messages. Currently, there are some mature filtering methods which adopt software automated filtering and user setting rules.

目前已有一些比较成熟的过滤方法采用通过软件自动过滤与用户设定规则的方式，但这类软件存在着明显的不足：它需要人工设定过滤规则，这要求用户或管理员有较强的专业知识，还要求用户能随着垃圾邮件情况的变化不断调整这些规则。

Is 130-150 deg.c, the working pressure of filtering element is less than MPa, filtering accuracy is 10-40 micra, the impurity content of filtered liquid sulphur is 10-100 PPM.

过滤温度为130―150℃，滤芯工作压力〈0.5MPa，过滤精度为10―40μ。过滤后液硫中的杂质含量为10―100PPM。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。