1) FFT lowpass filtering
FFT低通滤波
1.
Study on channel estimation based on hybrid type pilot and FFT lowpass filtering for OFDM
基于混合结构导频和FFT低通滤波的OFDM信道估计
2) FFT filter
FFT滤波器
1.
This paper describes an efficient algorithm for enhancement of speech signals,which is based on estimation of spectral amplitude using an overlap-add FFT filter bank.
提出一种有效的语音增强算法,该算法使用重叠相加FFT滤波器进行谱幅度估计,给出噪声估计的两个均值参数,此参数适用于任何噪声。
3) low-pass filter
低通滤波
1.
Design of a programmable low-pass filter based on high reliability and its applications;
一种高可靠性可编程低通滤波器的设计与应用
2.
Development of Programmable Low-Pass Filter Circuit Based-on SCF;
基于 SCF 的程控低通滤波电路研究
3.
Due to the large torque ripple of induction motor based on direct torque control at low speed,in this paper,on the basis of conventional direct torque control,the fuzzy controller is used for choosing the switching state of the inverter,and using low-pass filter compensates the value of the flux.
本文针对基于直接转矩控制的异步电动机在低速范围内转矩脉动大的问题,在传统直接转矩控制基础上,运用模糊控制进行逆变器的开关状态选择,并对定子磁链进行低通滤波补偿。
4) low-pass filtering
低通滤波
1.
In thesis each kind of low-pass filtering algorithm is studied and the wavelet filtering algorithm is proposed.
在研究了各种低通滤波算法的基础上提出了利用小波对电力工程图纸进行滤波的算法。
2.
At present,there are a number of approaches of forming digital I/Q components,such as low-pass filtering approach and Hilbert transform approach and so on.
对雷达中频接收如何解调出具有回波信号中的同相(I)、正交(Q)分量做了分析,到目前为止,获取数字I/Q分量的算法很多,常见的有低通滤波法和Hilbert法(希尔伯特法)等,现详细的阐述了低通滤波法及其改进实现方法,并给出仿真结果。
3.
Firstly,the algorithm for accomplishing spatial domain low-pass filtering in the compressed domain is formulated based on the properties of the DCT.
首先利用DCT变换的正交特性 ,推导出了在压缩域实现低通滤波运算的具体算法 ,在这种算法中 ,利用压缩域的矩阵乘法运算实现空间域的线性低通滤波运算。
5) low pass filter
低通滤波
1.
The spectrum of UV image is analyzed,noises mainly distribute in the high part of the spectrum,then low pass filter can be used for UV image noise reduction.
为此采用夜间型紫外成像仪获得设备电晕放电图像并把采集的RGB图像转化为灰度图像,再根据图像的噪声分析,针对椒盐噪声、斑点噪声和高斯噪声等这些噪声的特点采用频域低通滤波技术进行滤波处理,噪声模拟和现场实测的紫外图像表明滤波前后效果显著,提高了故障放电时所测得的紫外图像的质量。
2.
Second, using low pass filters to pick up the high frequency component for estimating the upper limit can get a more general limit and avoid the diffi.
在准确度上限计算时使用低通滤波器来提取高频成分 ,不仅得到了更具有普遍意义的上限 ,还避开了时间序列模型适用性检验的困难性。
3.
Signal reliability is improved by using a low pass filter to silence background noise.
介绍了纯水液压试验台的信号采集硬件组成和工作原理 ,对系统中的典型压力信号和流量信号进行了测试 ,用低通滤波方法解决了信号采集中存在的噪声干扰问题 ,提高了信号处理的可信度 。
6) low pass filtering
低通滤波
1.
In this paper,the physical process of time domain convolution operation and frequency domain product operation were analyzed by taking the digital low pass filtering as the examples,using the calculating and mapping function of MATLAB and considering the characteristics of the digital signal processing.
利用MATLAB的运算和作图功能,针对数字信号处理的特点,以数字低通滤波器为例,分析信号经过系统在时域卷积运算和频域乘积运算的物理过程。
2.
The low pass filtering PID algorithm based on the digital filtering technology is designed.
基于数字滤波技术设计的低通滤波PID算法,通过滤掉误差信号中的噪音信号从而提高了算法的控制效果。
3.
This paper discusses how to implement the direct sampling of radar IF signal with high speed A/D converter and how to resolve one channel of digital signal into two orthogonal digital signals by Bessel interpolation or low pass filtering to realize a digital coherent detection,presents the implementation program based on high speed AD6640 and complex programmable logic device.
讨论了如何利用高速模/数(A/D)变换器实现对雷达中频信号直接采样,如何通过Bessel插值或低通滤波将1路数字信号分解为2路正交数字信号以实现数字相干检波,给出了基于高速 AD6640 及复杂可编程逻辑器件的实现方案。
补充资料：[3-(aminosulfonyl)-4-chloro-N-(2.3-dihydro-2-methyl-1H-indol-1-yl)benzamide]
分子式：C16H16ClN3O3S
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
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