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数字驱动由于其控制算法的灵活性可以有效地提高科氏质量流量计的工作性能。针对数字驱动的启振问题，本文基于模型分析和实验仿真，提出了正负阶跃交替激励启振方法。该方法通过跟踪检测传感器自激输出信号相位进行正负阶跃交替激励，使流量管的振动幅值持续、可靠地快速增大，进而结合非线性幅值控制算法和频率估计，可使流量管启振时间大幅度地缩短，克服了传统启振方法的局限性。-Digital drive control algorithm because of its flexibility can improve t
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采用第一种ESPRIT算法进行空间阵列信号的频率估计-ESPRIT algorithm using the first spatial array signal frequency estimation
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采用第二种ESPRIT算法，进行空间阵列信号频率估计-ESPRIT algorithm using the second, the spatial array signal frequency estimation
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Algorithm for Frequency estimation
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频域不同导频密度的信道估计在被研究，并且在高低时延信道其信道估计被固定了导频分配时域。频域信道估计是基于插补，多项式的广义线性模型（或最小二乘法）和维纳滤波（或线性最小均方误差法）的方法。时域的信道估计是用线性插补完成的。我们通过测量在基于克拉克散射模型的瑞利衰落信道上并带有QPSK调制的粗误码率，已经比较了所有这些方案的结果。-Different pilot density in frequency domain channel estimate to research, and its hi
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In this paper, we investigate the timing and carrier
frequency offset (CFO) synchronization problem in decode and
forward cooperative systems operating over frequency selective
channels. A training sequence which consists of one orthogonal
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In this paper, we investigate the timing and carrier
frequency offset (CFO) synchronization problem in decode and
forward cooperative systems operating over frequency selective
channels. A training sequence which consists of one orthogonal
fr
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很好的空间music谱估计的例子 空间傅里叶变换-A good example of space music spectrum estimation Fourier transform space
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lms算法的实现 计算了剩余均方误差和失调参数-MVDR based on singular value decomposition method of frequency estimation of the simulation
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An effecient algorithm has been proposed by
Schmidl and Cox for carrier frequency estimation in orthogonal
frequency-division multiplexing systems. The scheme is based
on the transmission of a training symbol composed of two
identical halves
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OQPSK信号的频率估计，用的是相位与时钟联合估计算法，适用于突发的卫星信号等-OQPSK signal frequency estimation, using a phase estimation algorithm combined with the clock for emergency satellite signals
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这是一位博士写的一种新的正弦信号频率估计方法，很有参考意义。-This is a Ph.D. to write a new method of sinusoidal frequency estimation, lot of reference value.
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分析了噪声背景下实谐波过程ARMA模型系数之间的对称性,并以此为约束条件加入ARMA谱估计方法的求解过程中,从而提出了一种改进的正弦信号频率估计方法.理论分析与计算机仿真表明,对于低信噪比条件下的正弦信号参量估计,这一算法的精度与稳定性都优于仅使用总体最小二乘法(SVD-TLS)的ARMA谱估计方法.-Analysis of real harmonic process noise background symmetry between ARMA model coefficients, and a
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the comb pilot aided channel estimation in ofdm modulation is considered. the power of pilot subchannels is under the control.
The data experience frequency selective channel then the AWGN noise is added to make the situation worse. The bit error
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costas环的matlab实现，该实现能够完成相位锁定，频率估计等动能-costas loop matlab implementation that can complete phase-locked, frequency estimation of the kinetic energy
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Read a wave file, play it and do some analysis such as segmentation, energy and frequency estimation, -Read a wave file, play it and do some analysis such as segmentation, energy and frequency estimation, ...
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adaptive beamformer using an FFT filter bank with/without DOA estimation and tracking
(frequency domain version of Frost beamformer)
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文章根据频率选择性衰落信道的抽头延迟线模型，将针对平坦衰落信道的CS(周期平稳过程理论)频偏盲估计
算法扩展到了频率选择性衰落信道，并通过仿真证明这种扩展是可行的.仿真结果还表明CS算法不仅有好的抗平
坦衰落能力，而且有很好的杭频率选择性衰落性能.-Article according to frequency selective fading channel tap delay line model, the flat fading channel for CS (cycle stati
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分别使用LS和TLS算法，计算出混合信号的频率。该频率估计算法的数学模型是基于ARMA模型。其中还包括详细的设计报告，有一定的参考价值。-LS and TLS algorithms were used to calculate the mixed-signal frequency. The mathematical model of the frequency estimation algorithm is based on ARMA models. It also includes detai
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针对频率周期振荡的振动系统讨论自适应控制问题,在频率跟踪的基础上对频率变化的振动响应进行控
制,给出相应的估计、滤波与控制方法。首先在子空间辨识原理的基础上,通过测量信号自相关序列的递推运算获得信号
频率 然后根据估计频率实时调整带通滤波器的中心频率,使其跟踪信号频率,实现信号分量的跟踪滤波 最后在LMS方
法的基础上构造对信号分量进行控制的自适应控制器。-The adaptive vibration control of systems excited by forces of p
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