分数延迟滤波器广泛用于通信,语音处理,回声消除等。
Fractional delay filters are applied to a wide range such as communications, speech processing, echo cancellation, etc.
文中设计的FIR可变分数延迟滤波器用于解决全数字接收机的时钟同步问题。
In this paper, the FIR variable fractional delay filter is designed and used to solve the problem of symbol synchronization of all digital receiver.
预处理器主要有延迟单元、乘法器和窄带滤波电路构成,可以从NRZ数据中得到时钟信号。
The preprocessor can extract clock information from NRZ data stream, which consists of a delay cell, a multiplier and a narrow-band filter.
查询表46包括预定的多个均衡器滤波器长度,其对应于不同的确定或估计的延迟范围或另一选择度量。
A lookup table 46 includes a predetermined plurality of equalizer filter lengths corresponding to different determined or estimated delay spans or another selected metric.
音频回声滤波器在一个给定延迟重复一个声音,衰减基于衰变率的重复。
The Audio Echo Filter repeats a sound after a given Delay, attenuating the repetitions based on the Decay Ratio.
介绍了自适应回声消除器的基本结构及各个功能模块,例如:变阶数自适应滤波器,语音状态检测器,延迟分析器和NL MS算法控制器。
The structure of AEC as well as its composing modules, are introduced such as the speech detector, the adaptive filter, the time delay estimator and the NLMS algorithm controller.
已知当信道延迟离散的长度增加时,需要更长的滤波器长度。
It is known that as the length of a channel delay dispersion increases, longer filter lengths are required.
采用智能滤波线技术,有利于计算机识别较强干扰下声波波形周期,并计算时间延迟。
The use of intelligent filter wave line technology is available to discern the sound wave period and to calculate the delay time under the strong disturbance.
这些延迟会造成“梳状滤波效应”(相位的抵消和叠加),这会改变拾取信号的音质。
This delay can cause "comb filtering" (phase cancellation and addition), which alters the miked signal's tone.
而滤波器的零点、极点个数及其位置又完全决定了其相移和群延迟的性质。
The characters of phase shift and group delay are controlled by the number and position of zeroes and poles.
该方法将主惯导数据测量延迟时间扩展为卡尔曼滤波器的一个状态变量,并同时考虑了测量延迟时间对速度和姿态测量量的影响。
The method augments the measurement delay as a state of conventional Kalman filter as a state, and impacts on both velocity and attitude measurements owing to the time delay are also considered.
实验证明,将这一结论推广运用于空域中,对已知频率的信号,设计特定频率延迟的滤波器应用于图像目标检测,效果良好。
With the signal frequency known, the filter with a given frequency delay is designed for an image target detection. The experiment proves that the filtering effect is good.
结果表明:变长自适应判决反馈均衡器在前馈滤波器长度收敛到一定的范围内、判决延迟保持一定的情况下,反馈长度并不是越长越好。
The results show that a longer feedback filter tap-length is not necessarily better when the feedforward filter tap-length converges to a certain range and the decision delay maintains a fixed value.
讨论波形捷变雷达接收部分使用声表面波带通滤波器和声表面波色散延迟线进行信号处理的有关问题。
The signal processing problems in the receiving part of multi-waveform radar using SAW bandpass filters and SAW dispersive delay lines are discussed.
基于多镜理论提出了一种新的多腔滤波器群延迟计算方法,简化了计算过程,使得计算不再受实际材料的限制。
A novel method for calculating group delay of multi-cavities filters based on multi-mirror theory is presented, which simplifies the calculation and is not restricted by the practicable materials.
本文介绍一种具有滤波器特性的SAW延迟线的设计分析和实验结果,并就几个问题进行了讨论,提出了一些看法。
Analysis, design and experimental results of SAW delay lines exhibiting filter characteristics are reported in this paper. Views on the problems relating to the devices are discussed and proposed.
基于多镜理论提出了一种新的多腔滤波器群延迟计算方法,简化了计算过程,使得计算不再受实际材料的限制。
A novel method for calculating group delay of multi-cavities filters based on multi-mirror theory is presented, which simplifies the calculation and.
这种结构由四部分构成:输入延迟单元、寄存器单元、滤波器单元和控制单元。
It comprises of four basic unit: input delay, filter, register bank, and control unit.
基于混沌动力系统相空间的延迟坐标重构和双线性表达式,设计了预测混沌时间序列的双线性自适应预测滤波器。
Based on the delay-coordinate reconstruction and bilinear expressions in the phase space of a chaotic system, a bilinear adaptive filter was designed to predict low-dimensional chaotic time series.
基于混沌动力系统的相空间延迟坐标重构,利用混沌序列固有的确定性和非线性,提出了用于混沌时间序列预测的一种少参数非线性自适应滤波预测模型。
Based on the deterministic and nonlinear characterization of the chaotic signals, a new reduced parameter nonlinear adaptive filter is proposed to make adaptive predictions of chaotic time series.
另外,理想滤波器组的延迟应该和滤波器组的阶次相等。
Besides, we consider the ideal filter group's delay may be equal to it's order.
地震数据采集系统的内部延迟是系统固有的,与采样率、滤波器的选择和仪器类型有关。
The internal delay in seismic data acquisition system is intrinsic feature of system and relative to sample, choice of filter and type of instrument.
对象和逆控制器各用一个抽头延迟线滤波器表示,用抖动方法给对象建模;
Plant and inverse controller are expressed by a tapped delay line filter respectively.
该电路包括第一滤波级、延迟元件、以及谐波滤波器。
The circuit comprises a first filtering stage; a delay element; and a harmonic filter.
仿真结果表明变周期距离参数化扩展卡尔曼滤波算法能有效解决经典扩展卡尔曼滤波算法在纯方位角目标跟踪时可能出现的滤波发散现象,并能处理声音信号的传输时间延迟问题。
The simulation results indicate that the variable cycle RP-EKF algorithm can resolve the filtering instability of EKF for the bearing-only target tracking and the time-delay problem.
由于透镜传输时间延迟效应(PTD),飞秒激光脉冲经过空间滤波器产生脉冲波前变形。
Owing to the PTD effect in the lenses of spatial filter, large temporal front distortion of femtosecond pulses occurs in the spatial filter.
由于采样速率、滤波器转折频率、建立时间、群延迟和输出字速率与外部时钟频率呈比例变化关系,因此这些参数也会相应降低。
The sample rate, filter corner frequency, settling time, group delay and output word rate will be reduced also, as these are proportional to the external clock frequency.
任意两个传感器子系统之间的滤波误差互协方差矩阵推导出状态的时间延迟系统。
The cross-covariance matrix of filtering errors between any two-sensor subsystems is derived for state time-delay systems.
任意两个传感器子系统之间的滤波误差互协方差矩阵推导出状态的时间延迟系统。
The cross-covariance matrix of filtering errors between any two-sensor subsystems is derived for state time-delay systems.
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