全相位数字滤波器(APDF)是一种新型的线性相位滤波器。
The All phase Digital filter (APDF) is a new type of linear phase filter.
为了克服这个缺点,提出了使用相位滤波器改变相干面光源不同环区的相位。
For overcoming the shortcoming, a phase-only optical filter is used to change the phase of annular zones of coherent extended source.
我们设计了一种连续相位滤波器,该滤波器可以优化固体浸没透镜系统的光场分布。
This aberration may cause the degradation of the image of sample. We design a continuous phase filter and optimize the optical field distribution of SIL system.
在全相位滤波器设计理论的基础上,本文证明了基于IDCT/DCT域的APDF有零相位特性和子带互补特性。
Secondly, to find the suited application, the characteristics of APDF based on IDCT/DCT are discussed. Zero-phase and sub-band filtering with complementary are two characters of APDF.
该方法是基于最小相位滤波器的复倒谱系数和其群迟延函数以及其系统函数之间的关系,通过一个非线性的递归方程求解分母多项式的系数。
Based on the relationship between the group delay function and the cepstral coefficients, the denominator polynomial coefficients can be determined through a nonlinear recursive difference equation.
该滤波器在基频处的幅值无衰减,相位无延时,能将2次以上的谐波全部滤掉。
The filter has no fundamental frequency decay and phase delay, and all harmonics above2nd order are filtered.
FIR数字滤波器以其良好的线性相位特性被广泛使用于现代电子系统中。
In the modern electrical system, FIR digital filter is widely favorable for many applications due to its well linear phase characteristics.
本文提出并详细说明了用最优化方法设计线性相位数字滤波器的原理和方法。
The Principle and design methods for linear phase digital filter with optimization design were presented in this paper.
并提出了从环路带宽和相位余量出发设计环路滤波器的方法。
The method of designing the loop filter with the phase margin and loop bandwidth is displayed.
首先介绍了线性相位FIR滤波器的四种情况,然后在此基础上设计了一种应用多重交换算法来处理心电信号的陷波滤波器。
Four types of linear phase fir filters are introduced at first, then of this basis a notch filter for processing ECG signal is designed by using multiple exchange algorithm.
噪声,高频率,阶线性相位低通滤波器。
噪声,高频率,8阶线性相位低通滤波器。
Noise, High frequency, 8th Order Linear Phase Lowpass Filter.
本文提出了一种设计等波纹线性相位FIR陷波滤波器的优化算法。
This paper presents an optimal algorithm for designing linear phase equiripple FIR notch filters.
简单回顾了数字滤波器的结构和设计,详细讨论和比较了线性相位FIR滤波器的三种设计方法。
Reviewed the digital filters' structure and design concisely. Discussed and compared three design methods of linear phase FIR filter particularly.
基于峰值约束最小平方优化标准,提出了一种用于设计线性相位定点系数FIR数字滤波器的新方法。
A new method for designing linear phase FIR digital filter with fixed-point coefficients based on the peak-constrained least-squares criterion is proposed in this paper.
由于有锁频环的频率牵引,锁相环路滤波器可以设计得很窄,具有很好的抑噪性能,满足精确跟踪载波相位的要求。
Due to the frequency pulling of FLL, the passband of the filter in PLL can be made very narrow to suppress the noise, and the PLL can lock carrier's phase with high accuracy.
利用改进的磁通积分算法,克服了纯积分器直流漂移和初始值问题,消除了一阶低通滤波器的幅值和相位偏差。
The DC drift and initial problems of pure integrator were overcome, and the magnitude and the phase error of one-order low pass filter eliminated by using a novel integration method.
本文提出了一种线性相位精确重建余弦调制滤波器组的二次型约束设计公式。
We propose the quadratic constrained formulas for the design of linear phase cosine modulated paraunitary filter banks given in references .
介绍了对相位一致性有严格要求的带通滤波器。
The bandpass filter we designed has a strict demand on the consistency of phase.
研究了截断信号边界的“吉布斯”现象及数字滤波器相位特性对有限区间信号滤波处理的影响。
The effects of the Jibbs'phenomenon and the phase property of the digital filter on the edges of cutoff signal with limited time domain after filtered is studied.
本文重新导出FIR滤波器实现精确线性相位特性的条件。
The condition for implementing FIR filters with exact linear phase is derived once again in this paper.
本文介绍当前设计fir线性相位数字滤波器最好的一种CAD方法。
In this paper a best CAD designing method at present for FIR linear phase digital filters is introduced.
在引入重叠基矩阵的基础上,提出了加窗全相位等效f IR滤波器系数向量的计算通式。
Based on introducing overlapping base matrix, the general calculating formula for the coefficient vector of windowed all-phase equivalent FIR filter is proposed.
根据本文提出的优化设计算法,作者详细研究了FIR线性相位带通滤波器优化设计实例。
Author studies in detail the optimal design examples about the FIR band pass filters with a linear phase according to the optimal design algorithm presented in the paper.
为了测量受噪声和谐波干扰的两个信号间的相位差,基于自适应带通滤波器(abf)和测量信道交换技术,提出了一种新的测量方法。
To measure phase accurately in the presence of harmonics for both noisy input signals, a technique based adaptive bandpass filter (ABF) and the method of interchanging signal channel is presented.
然后针对每个传感器,根据其各频率波束形成加权向量,采用约束优化方法,设计出具有要求幅度和相位响应的FIR滤波器。
Then, the BCBB is implemented by a set of FIR filters corresponding to the input channels, which provides the frequency response derived from BCBB weights for each sensor.
附录中证明了复fir滤波器相位转换定理。
In the appendix, the phase conversion theory of complex FIR filters is proved.
针对采用有限大小探测器的共焦显微系统,利用两区相位型滤波器提高系统的纵向分辨率。
For a confocal microscope with a finite-sized detector, the improvement in axial resolution by a phase-only filter with two zones was experimentally investigated.
在分析滤波多音调制(FMT)的基本原理和优点的基础上,给出了一种基于线性相位FIR滤波器的FMT实现方案,并对该方案的实现复杂度做了讨论。
The basic theory and advantages of filtered multitone modulation (FMT) are studied. An efficient implementation of FMT based on linear-phase FIR filter is proposed and its complexity is discussed.
在分析滤波多音调制(FMT)的基本原理和优点的基础上,给出了一种基于线性相位FIR滤波器的FMT实现方案,并对该方案的实现复杂度做了讨论。
The basic theory and advantages of filtered multitone modulation (FMT) are studied. An efficient implementation of FMT based on linear-phase FIR filter is proposed and its complexity is discussed.
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