1) FFT filtering method
快速带通滤波方法
2) band-pass method
带通滤波方法
4) fast filtering
快速滤波
1.
The fast filtering method is validated by taking two band-pass filtering cases of typical signals as an example,and it is shown from the filtered results of two complicated ocean signals that the filtering method has applied significance i.
借助于离散"解析"信号提出了一种对信号进行快速滤波的方法。
2.
The results show that PFF provides almost the same quality as normal fast filtering method,but with less computation.
将心理声学模型应用于滤波中,利用人耳的掩蔽效应,提出了一种简化FIR滤波器的运算复杂度的方法——基于感知的快速滤波。
3.
The theory of fast filtering technique which reduces quantization error by over-sampling was briefly analyzed and a high resolution countering circuit is made with FPGA.
为了减小激光陀螺计数电路的量化误差,从频域的角度对减小量化误差的快速滤波法进行了简单分析,并用现场可编程逻辑阵列(FPGA)器件设计了高分辨率计数电路。
5) Band-pass filter
带通滤波
1.
A method of runway detection based on band-pass filter
一种基于带通滤波的机场跑道提取方法
2.
The integrated active filter chip MAX275 is used in the electric circuit as a band-pass filter to filter noise.
电路中使用了MAX275芯片对信号进行带通滤波取得了很好的效果。
3.
The band-pass filter product is designed with favorable automatic follow of electronic product, and with favorable automatic follow capability, filtration effect and stability.
重点设计了不平衡量的测量系统,研制了具有自动跟踪性能、滤波效果和稳定性良好的电子乘积式自动跟踪带通滤波器(MDAC)。
6) Bandpass filter
带通滤波
1.
The algorithm of the designed digital linear phase bandpass filter and DFT demodulation are successfully applied to the unbalanced amplitude and phase demodulation of the textile cup and carding roller dynamic balance machine.
设计了数字线性相位带通滤波及ＤＦＴ解调算法，并成功地将其应用于纺杯分梳辊动平衡机不平衡量幅度及相位解调中。
2.
The architecture of polyphase bandpass filter is presented based on the study of the generalized digital down conversion and polyphase filter architecture, and variable bandwidth digital downconvertor(VB-DDC) is designed.
为了使数字下变频器适应多种带宽信号的处理能力,在研究数字下变频和多相结构运算特点的基础上,提出一种多相带通滤波结构。
3.
In this article the main classic QRS detection algorithms such as Derivative-Based Algorithms,Matched Filter,Bandpass filter,Wavelet-based algorithm,Mathematical Morphology,Length and Energy Transforms,along with an approach based on mathematical morphology and wavelet.
本文分别对差分法、匹配滤波法、带通滤波法、小波变换法、形态学方法、长度和能量变换法这六种经典QRS波检测算法以及一种基于数学形态学及小波分解相结合的算法进行了原理阐述和检测效果对比,结果表明:经典算法通常能满足需求,但当噪声干扰十分严重时,联合算法更准确。
补充资料：低通数字滤波
低通数字滤波
影像学术语。数字成像方式中数字图像平滑方式之一。图像数据的统计涨落相当于频谱的高频部分，使用数字滤波器滤掉高频成分，保留图像信息中的低频和中频部分，即可达到平滑的效果。进行低通数字滤波平滑前，要首先用傅立叶变换把图像信息由空间域变换到频域上，即转换为频谱，经过滤波后再用傅立叶逆变换转换为图像信息，这样就可以得到平滑后的图像。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条