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This application note considers the design of frequency-
selective filters, which modify the frequency content
and phase of input signals according to some specification.
Two classes of frequency-selective digital filters
are considered: infi
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0下载：
This application note considers the design of frequency-
selective filters, which modify the frequency content
and phase of input signals according to some specification.
Two classes of frequency-selective digital filters
are considered: infi
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The real and imaginary components of a complex Gabor filter are phase sensitive,
i.e., as a consequence their response to a sinusoid is another sinusoid (see Figure
1.2). By getting the magnitude of the output (square root of the sum of squared
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A Bode plot is a graph of the transfer function of a linear, time-invariant system versus frequency, plotted with a log-frequency axis, to show the system s frequency response. It is usually a combination of a Bode magnitude plot, expressing the magn
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线性时不变系统的冲击响应求解及信道特性描述 幅度-Impulse response solution of linear time-invariant systems and channel characterization magnitude
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this program helps you to find magnitude of systems response to a forced vibration category
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对于城市环境中的高精度单频 GNSS 接收机而言，若考虑误差预报处理已抵消电离层误差，则地面传播环境所导致的多径效应将成为系统误差的主要因素。基于现有蜂窝通信的高分辨率信道估计结果，针对电波传播的幅度、相位、多普勒等特征提取信道响应函数，在极小误差范围内提供至 L 波段信号的线性特征映射-For multipath effects in urban environments with high accuracy single-frequency GNSS receiver, the foreca
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水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。
本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。-The most difficult problem fac
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This MATLAB exercise computes the log magnitude of the STFT of a specified frame of speech. Then, using the
same frame of speech, the exercise computes LPC log spectral matches to the speech frame, using the autocorrelation
method, the covariance
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% [db,mag,pha,grd,w] = freqz_m(b,a);
% db = Relative magnitude in dB computed over 0 to pi radians
% mag = absolute magnitude computed over 0 to pi radians
% pha = Phase response in radians over 0 to pi radians
% grd = Group delay over 0 to pi
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