variable filter

The space-time processing principle of antenna array for UWB pulse reception is studied. Aiming at the realization problem of highly accurate variable delay circuits ( VDC), a combination of digital lines and fractional sample delay compensation filter ( FDCF) for beamforming in time domain is proposed.

研究了UWB脉冲信号接收阵列的空时处理原理，针对高精度的可变时延电路实现问题，提出了将数字延迟线和分数阶的采样延时补偿滤波器（FDCF）相结合的时域数字波束形成实现方法。

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Study on Hybrid Intelligent Control for Variable Rate Anoxic Biological Filter Wastewater Treatment

缺氧变速生物滤池污水处理系统混合智能控制研究

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Tunable optical bandpass filter TVF Time Variable Filter

可调光学带通滤波器可随时间变化的滤波器

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This tracking filter is based on state variable filter and make central frequency be equal to control frequency.

这种跟踪滤波器以状态变量滤波器为基础，通过锁相倍频器和开关电容实现滤波器的中心频率与控制频率相等。

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TVF Time Variable Filter Modified Kalman filter of TDOA in ultrasonic flow measurement

可随时间变化的滤波器超声波流量测量时差改进卡尔曼滤波

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Filter is one of representative digital signal processing system which could be divided into time invariant system and time variable system.

滤波器是一个典型的数字信号处理系统，同样可分为时变滤波器和时不变滤波器。

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All the coefficients of the filter can be independently tuned through the variable current gain factors of the DOCC ⅱ.

滤波器的参数可以通过DOCCⅡ的可变电流增益因子独立调谐。

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TVF Time Variable Filter low-pass filter type impedance transformer

可随时间变化的滤波器低通滤波型阻抗变换器

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Variable Structure Control for a Hybrid Power Filter

一种混合型电力滤波器的变结构控制

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Filter Technique of Removing Correlated Errors Existing in GRACE Time Variable Gravity Data

GRACE时变重力场位系数相关误差的滤波消除技术

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