低通滤波器

A distributed amplifier of the low-pass type can easily be constructed to have a uniform frequency response from audio frequencies to frequenc...

由实验结果证明，采用m导出式低通滤波器所构成的仿真线的分布式放大器，实较用常K式者，具有更佳的相移特性和频率特性，这与理论上的分析是一致的。

In order to eliminate direct current drift and saturation problems of pure integrator for back electromotive force,an improved programmable low-pass filter rotor flux estimator was proposed to replace the pure integrator.

为了有效抑制反电动势积分环节所存在的直流偏移和积分饱和问题，采用一个截止频率可根据输出频率进行自调整的低通滤波器来代替传统电压模型磁链观测器中的反电动势积分环节。

Experiment results and relative data supports that lowpass filter designed by such method can reach the optimization objectives under various constraints. This method could be applied to analogous engineering optimization problems.

实验结果和相关数据表明所设计的低通滤波器达到了带约束条件的多目标优化目的，且该方法也可用于类似的工程优化设计。

There are many noise sources in measuring the seismometer transfer function, the main noise sources are investigated. The method of cross-special analysis is presented, flow process diagram of computing is given, the algorithms are discussed in detail, such as low-pass digital filter, computing of seismometer transfer function initial values, time domain convolution, bilinear transformation, estimation of power spectrum and cross-spectrum, window functions and preprocessing of measuring data etc.

在地震计传递函数测试过程中的存在多中噪声，本文分析了主要的噪声来源；介绍了用互谱分析方法测试地震计频率特性的基本原理和方法；给出采用该方法确定地震计传递函数的算法流程图；并对计算过程中采用的低通滤波器、地震计传递函数的初值确定方法、卷积运算方法、自谱和互谱估计、采用的窗函数和测试数据的预处理进行了详细讨论。

The analysis shows that IIR Butterworth filter performs better than FIR filter both in calculation precision and calculation speed.

仿真试验结果表明，IIR的Butterworth低通滤波器具有更高的测量精度和计算速度。

Matlab simulation tools Butterworth low-pass filter design results were verified.........

Matlab工具对巴特沃斯模拟低通滤波器的设计结果进行了验证，Matlab程序见附页。

This paper describes a low-pass filter with adjustable bandwidth range from 100 Hz to 8 kHz for MEMS capacitive accelerometer readout circuit.

提出了一种适于MEMS电容加速度计读出电路带宽可调的低通滤波器，带宽调节范围为100~8000 kHz。

Frequency and spectrum characteristic of the optical low pass filter.

光学低通滤波器的频率特性和光谱特性。

This research uses several groups of different cutoff frequencies of low-pass filters for testing to choose the best frequency.

本研究采用几组不同截止频率的低通滤波器进行测试，以选择最佳频率。

Therefore,the Low Pass Filter is introduced on base of common sliding mode control.The control law can guarantee fast convergence of trajectory tracking error as well as robustness for external disturbances and parameter uncertainties.

在一般滑模控制的基础上引入低通滤波器，则保证了轨迹跟踪误差的快速收敛，同时使系统具有很强的鲁棒性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。