查询词典 air filter

This error will limit the application of the IF filter, but there are still lots of benefits in the low-Q IF filter design. The GM-C filter that is designed by this suggested methodology has a lot of benefits.

此一误差限制了本文所提出的滤波器使用范围，但在 Low-Q 滤波器应用上具有多方面的优点。

Study on application and simulation of Kalman filter technology in SINS Because Kalman filter some merits, such as provided a fast and accurate method for SINS, adopting it to do initial alignment in this paper. The Kalman filter theory is introduced and the dynamic error vector equation of the initial alignment is derived at the first. Using velocity error as exterior value of observation, maneuverable characteristic that is influenced with system's observability and its degree is studied at length by do amount of simulations and experiences.

首先介绍了卡尔曼滤波理论及相关技术，建立了系统卡尔曼滤波的状态方程和观测方程；首先采用速度误差作为观测值，详尽的研究了系统机动特性对可观测性和可观测度的影响，并做了大量仿真实验：通过对滤波原理的分析研究了影响的原因；分别选用加速度计输出误差和转台输出姿态角误差作为外部观测值，推导建立它们的观测模型，并通过仿真证明了分析结论的正确性。

Firstly, this paper analyses the linear filters which are the basis of radar data processing, such as Kalman filter,α-βfilter,α-β-γfilter, Two-point Extrapolator filter and Linear Regression filter. And their performances should also be evaluated and compared.

本文首先讨论了雷达数据处理中基本的线性滤波方法包括卡尔曼滤波(Kalman Filter，KF)，α-β与α-β-γ滤波方法，两点外推滤波以及线性自回归滤波方法等，并将做滤波方法的性能比较。

Xi′an Node Science Technology Co.Ltd.,Xi′an,710075,ChinaAbstract:In this paper,a new variable interpolated filter in DVB-S(Digital Vidoe Broadcast by Satellite) is introduced based on the common filter of cascaded integrator comb.Firstly a CIC filter module with interpolation factor 2 is designed,then we could reuse the basic module according to the interpolation factor.

摘 要：在数字上变频中常用的CIC滤波器的基础上，提出了一种适用于DVB-S系统的可变插值率CIC滤波器的实现结构，首先实现一个内插因子为2的CIC滤波器单元，然后根据不同的内插因子要求，来重复地调用这些内插因子为2的基本滤波器模块，这种CIC滤波器的实现结构符合结构化的设计思想。

Meanwhile,the non-linear filter base on the multi-window median filter and morphology filter is proposed.

在比较多窗口自适应中值滤波和形态滤波这两种滤波器的优缺点之后，还提出并设计了非线性组合滤波器。

Use several function design some universal digital filter, get the coefficient of digital filter, prepare the prophase task of design a digital filter base on DSP.

并采用了相关的函数设计了几款常用的FIR数字滤波器，并得到了滤波器的相关系数，为利用DSP实现数字滤波做好了一些前期的工作。

Have the world's greatest film exceeding filter to produce base, it is a few on eye preexistence bound a few can own development what high-powered film exceeding filter achieves industrialization to produce is large one of suppliers of film exceeding filter.

拥有世界最大的超滤膜生产基地，是目前世界上少数几个能自主开发高性能超滤膜并达到产业化生产的大型超滤膜供应商之一。

In the middle of the filter material, a base cloth layer, as a reinforcement cage,is placed to reinforce the strength of the filter .the strength and the extensibility of the filter material relies on this layer.

在滤料的中层，有一层起钢筋骨架增加强度作用的机织基布层。整体滤料的强度及断裂伸长基本上取决于基布的强度。

Useseveral function design some universal digital filter, get thecoefficient of digital filter, prepare the prophase task of designa digital filter base on DSP.

并采用了相关的函数设计了几款常用的FIR数字滤波器，并得到了滤波器的相关系数，为利用DSP实现数字滤波做好了一些前期的工作。

Three new median filters are proposed in this paper, such as the weighted median filter and center weighted median filter and switching median filter.

本文在传统中位数滤波的基础上，与几种改进的中位数滤波进行比较，找出各自滤波的优劣。

" I' d like to get some rough idea about music in the baroque ear, please."

请简要介绍一下巴罗克时期的音乐，好吗？

The results showed that the peak latency and pattern of SEPs elicited by electrical needling in LI-l1 and MP were similar. The amplitude of SEPs elicited by electrical needling in LI-l1 was higher than that of MP. There was no obvious SEPs generation when MM was electrical needling.

结果显示，电针刺激曲池穴和其邻近桡侧伸腕长肌运动点诱发性脑电波的波形和波峰时间是类似的，只是穴位的诱发性脑电波波幅较大，而电针刺激非穴位点并没有明显的诱发性脑电位。