查询词典 filter factor

This paper presents the design procedure of a narrow band SAW filter with high rectangle factor.

文章介绍了一种窄带、高矩形度声表面波滤波器的设计过程，制作出了中心频率为140。

The simulation indicates that dielectric constant warp is key factor to the design and preparation of chip mulilayer bandpass filter. The simulations were shown to be in good agreement with the experimental results.

模拟仿真表明：低烧材料的相对介电常数偏差是器件设计制备中的关键要素，仿真优化结果与LTCC试验样品的测试结果吻合较好。

With internationally latest studies, the paper also proposes some biquadrate filters which are capable to perform the functions of second-order low pass、 high pass、 band pass、 band stop、 all pass filtering by selecting one of the three inputs or their proper combinations from the same configuration, furthermore whose natural frequency and the quality factor can be tuned independently. Then a continuous-time biquadratic filter using CCCII is proposed, which can be used in hearing aids and in other analog signal processing applications. Lastly a current mode and a voltage mode novel n-order filters of multifunction are presented. Not all both of the n-order filters are electronic tunable,but also they are integrated conveniently and compatible with VLSI technology.

尽量的全面归纳以电流控制传送器为有源器件的有源网络模拟电路、模拟信号处理电路，借鉴国内外最新研究成果，提出两种基于CCCⅡ的双二阶滤波器，这些电路在不需要改变电路结构的情况下，能同时实现低通、高通、带通、带阻或全通多种滤波功能，并且滤波器的特征频率ω_0和品质因数Q可实现独立调节；其中一种基于CCCⅡ的双二阶滤波器，首次提出将CCCⅡ应用于可编程助听器领域；最后设计了两种高阶滤波器，电压模式和电流模式各一种，这两种滤波电路均能实现多种滤波功能，能实现滤波器参数的电调谐，具有易于集成等优点。

This formula indicates that the resolution of the panoramic receiver is pro-portional to its bandwidth,and the factor of proportionality ζ depends upon the typeof the IF filter and the detector.

公式表明，全景接收机的分辨能力与其通频带成正比，比例系数ξ取决于中频滤波器和检波器的程式。

The forgetting factor was optimized by reducing the trace of the input error covariance matrix. This factor is able to modify the iterative learning law of control input. The error signal of the feed-forward learning controller was filtered by a zero-phase FIR digital filter.

通过减小系统输入误差协方差矩阵迹的方式得到优化的遗忘因子，来修正控制输入的迭代学习律，同时采用零相位FIR数字滤波器对前馈学习控制器中的误差信号进行滤波处理。

The purpose: AC filter capacitor complete unit is connected into the power system of power frequency to filter harmful harmonic current out in power system and improve the quality of power, increase power factor.

产品用途：交流滤波电容器成套装置接于工频电力系统中，有以滤除电力系统中有害的谐波电流，改善电能质量提高功率因数。

The receiving circuit adopts programmable gain amplifier and filter, enables the instrument to realize the automatic filter and the automatic adjusting enlargement factor according to the echo signal's different amplitude and frequency; Having AC and DC power supply modes, the system can satisfy different situation; Having adopted the big screen TFT LCD,caused the tested wave displaying intuitively;Having designed the toucher ,which enables the system to have a human-computer interaction function, helps user operate facilely.

接收系统采用程控滤波和程控放大，使得用户能根据回波信号的强弱和探头频率的不同而选择不同的滤波电路和放大倍数；交直流供电满足不同的应用场合；采用高分辨率大屏幕TFT液晶显示器，被测波形直观形象；触摸屏输入，操作方便。

Needle valve for regulating the amplification factor of 2, filter 9 used to filter impurities in the medium particles to prevent the nozzle being blocked.

针阀2用于调节放大系数，过滤器9用于过滤介质中的颗粒杂质，防止喷嘴被堵塞。

Different methods are brought forward for the radiation causes. Sage Adaptive filter and Kalman filter with adaptive factor method and UD decomposing algorithm are proposed and programmed. The second algorithm has strong detective and characters of simple computation.

针对发散原因提出了各种不同的解决方案，本文对 Sage 自适应滤波、基于预报残差的附加衰减因子的动态卡尔曼滤波以及 UD 分解滤波算法进行了叙述和程序实现，这三种方法都是克服滤波发散的有效方法。

Also, by using a novel offset architecture, as opposed to completely overlapped architecture, for the differential transmission pair, a 33% reduction of thickness is achieved in the design of a miniaturized common-mode filter with multi-layer LTCC technology. In view of increasing need of high-speed clock and data circuits to control their skew problems, a design of LTCC delay line is then conducted. To improve the waveform distortion associated with the microstrip/stripline-type meander delay line, a miniaturized high-frequency 3-D delay line with grounded guard traces is introduced. By means of 3-D structure, the 233 ps delay time, which requires extra board space amounting to a factor of 2.34 by stripline type meander delay line, can be shrunk into an EIA 1206 form factor.

为因应高速时脉及高速线路的不断发展，用於控制讯号、时脉同步的延迟线路需求日益增加，接著讨论的题目便是应用低温共烧陶瓷制程技术设计多层的延迟线路元件，为了改善在微带线/带线型折线式延迟线路波形失真的问题，论文中提出以接地的防护线来设计小型化的三维多层延迟线路元件，比较应用带线型折线式延迟线路和应用三维架构设计的延迟线路元件，同样提供233 ps的延迟时间，多层架构设计之延迟线路可缩小至EIA 1206 的尺寸，省下2.34倍的电路板面积。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。