Accelerometer readings can be jerky and noisy. Applying low-pass filtering on the signal allows you to smooth it and get rid of high frequency noise.
加速度传感器数值可能被颠簸和噪音影响。应用低通过滤器在信号上可以是它平滑，并摆脱高频噪音的干扰。
By using MATLAB signal and using window method, frequency sampling and Chebyshev approximation the design of low pass digital filter in the toolbox have been processed.
采用窗函数法、频率抽样法和切比雪夫最佳一致逼近法，通过调用Matlab信号处理工具箱中的函数设计低通数字滤波器。
The picture elements across a line are converted to the video signal and low-pass filtered with an electrical filter .
沿着一条直线的图象象素被转换成视频信号，然后由一个电子滤波器进行低通滤波。
To provide intelligent instruments with the cheap interface of the standard current sign, the RC low pass filter is used for producing a voltage signal which is proportion to PWM's duty rate from PWM.
为了给智能仪表提供廉价标准电流信号输出接口，可以使用RC低通滤波器，从PWM中分离出与占空比成正比的线性直流电压信号。
If input sigmal is supwrimpsed with high-frequency noise use a low-pass filter in the input signal line.
若输入信号伴随高频干扰，应在线里用高频过滤器。
A method of signal condition that achieves programmable gain and low pass filter in data acquisition.
一种用于数据采集的程控信号调理方法，在单片机控制下实现程控增益、程控低通滤波。
Compared with common audio signal processing attacks such as MP3 compression, low-pass filtering etc., they are more difficult to manage.
与mp3音频压缩、低通滤波等常规的音频信号处理攻击相比，同步攻击更加难以抵抗，已经成为研究界的一个公开难题。
A repetitive controller can be obtained by designing a zero phase shift low pass filter. With the help of digital signal processing and software tools, it is easy to design a satisfactory controller.
该方法将控制器的设计转化为零相移低通数字滤波器的设计问题，借助于数字信号处理的理论和工具直接得到所需的控制器参数。
Also, the harmonic filter is a low pass filter having a frequency cut-off point that attenuates first order harmonics of the output signal.
此外，谐波滤波器是具有频率截止点的低通滤波器，该低通滤波器削弱输出信号的一次谐波。
The method of designing the programmable cut-off frequency low pass filter is also shown. Under the control of a computer, its cut-off frequency may vary with the input signal frequency.
介绍了一种程控低通滤波器的实现方法，其截止频率可随输入信号频率的变化由计算机控制。
An inverter responses the output of a level greater than or smaller than a threshold value of the low pass filter, and outputs a signal in a high level or a low level.
反相器响应低通滤波器的大于或者小于阈值电平的输出，输出处于高或低电平的信号。
It introduces the overall design of the system in chapter two, formed mostly with precondition of pulse, enlarge signal, Low-Pass Filter, AD Conversion, Serial Communication, waveform showing etc.
第二章介绍了系统的总体设计方案，它主要由脉搏信号预处理、信号放大、低通滤波、AD转换、串行通信、波形显示等几部分组成。
The experimental results show the algorithm is robust against common audio signal processing such as MP3 audio compression, low-pass filtering, etc.
实验表明本算法对通常的音频信号处理，如MP3音频压缩、低通滤波等具有较好的稳健性。
A reduced order time delay observer with low pass filter is presented. The vibration of control signal, which is caused by the approximation of the delayed derivative of the state, is eliminated.
提出一种低通滤波降阶时滞观测器，避免了常规时滞观测器控制中由于时滞状态微分近似引起的控制信号颤振。
After the sequence passes through digital-to-analog converter and low pass filter, the desired frequency sweep signal is synthesized by the method of direct digital synthesis.
该序列通过数-模转换器和低通滤波器后，产生出频率扫描信号。
Reflected wave signal is processed by double channels two-order low-pass active filtering in hardware, and indicator diagram signal is processed by digital filtering in software.
液面反射波信号主要在硬件方面采用双通道二阶有源低通滤波，功图信号则在软件方面采用数字滤波算法。
Simultaneously, the second order notch filter and low-pass filter are designed to filter the second order rippled DC voltage signal.
同时，设计了用于牵引逆变器控制的二次数字陷波器以及低通滤波器滤除直流电压信号的二次脉动。
The CCD signal preamp with low pass filter is used to minimize the readout noise. The relationship between the readout noise and the readout speed is researched.
通过使用带低通滤波器的前置放大器降低了读出噪音，研究了读出噪音与读出速度的关系。
The one-step extrapolation procedure for low-pass signal was extended to the band-pass case.
拓展了带限信号一步外推算法，使之能够适用于带通信号的情况。
In this paper, the signal processing methods are introduced to improve the effect of display by regarding surface vectors as discrete vector signals and implementing low-pass filtering on them.
本部分研究通过把表面法矢量视为离散矢量信号，引入信号处理中滤波器的方法来平滑表面法矢量。
Data acquisition systems usually require anti-superimposing low-pass filter as well as low-pass noise filters in their preceding signal conditioning stages.
数据采集系统通常在前面的信号调节级中需要反叠叠低通滤波器以及低通噪声滤波器。
Band-pass filter often used in anti-jamming devices, in order to receive a valid signal within the band, while the elimination of high frequency and low frequency interference and noise.
带通滤波器经常用于抗干扰设备中，以便接收某一频带范围内的有效信号，而消除高频段和低频段的干扰和噪声。
Aiming at data acquisition of radar echo signal with low SNR, IF band-pass sampling concept is proposed. High-speed acquisition card PCI_9820 is used to sample in real-time and store data.
针对低信噪比的雷达回波信号数据采集，文中给出了中频带通采样方案，并选用PC I_9820高速采集卡实时采集和存储数据。
After the signal is processed through a low-pass filter, a very realistic waveform is obtained which can show pulsed nature, frequency, amplitude and bandwidth of television picture signals.
并将生成信号经低通滤波器处理，从而最终得到了一个能够充分反映电视图像脉冲性、频率、幅度和带宽特点的较为逼真的信号波形。
The repetitive control algorithm includes scalar gain of the reference input with a lead block in the signal generator. A second-order low-pass filter provides compensation in the controller.
该算法中在输入参考信号处直接增加一个比例增益环节，在信号发生器处串联一个超前的时滞环节，并且用一个二阶低通滤波器作为控制系统的补偿函数。
During signal processing, choosing low noise, high-precision, low-power amplifier AD620 as a pre-amplifier, and high-and low-pass filter and the frequency notch filter removal of interfering signals.
在信号处理中选用具有低噪声、高精度、低功耗放大器ad620作为前置放大器，并以高、低通滤波器和工频陷波器清除干扰信号。
During signal processing, choosing low noise, high-precision, low-power amplifier AD620 as a pre-amplifier, and high-and low-pass filter and the frequency notch filter removal of interfering signals.
在信号处理中选用具有低噪声、高精度、低功耗放大器ad620作为前置放大器，并以高、低通滤波器和工频陷波器清除干扰信号。
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