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18下载：
现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的：
低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4)
高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3)
带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4)
带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3)
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采用神经网络技术模拟地震发生的频率与震级。-using neural network technology simulated earthquake frequency and magnitude.
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The LM158 series consists of two independent, high gain,
internally frequency compensated operational amplifiers
which were designed specifically to operate from a single
power supply over a wide range of voltages. Operation from
split po
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一维WIENER的方法.包括了滤波器的频谱图和幅度响应图.可直接使用-one-dimensional approach. Including the filter frequency spectrum and the magnitude of response plans. Can be used directly
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用MATLAB函数fir1设计一个具有如下指标的线性相位FIR带通滤波器：阻带截止频率为0.55pi 和0.85pi，通带截止频率为0.65pi和 0.75pi，最大通带衰减为0.2dB，最小阻带衰减为42dB。分别利用下面的窗函数来设计滤波器：汉宁窗、汉明窗、布莱克曼窗。对于每种情况，给出其冲激响应系数并画出设计的滤波器的幅频响应。-Designed with a MATLAB function with the following indicators fir1 linear phase F
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使用自相关法提取基频法来判别男女声，并与带通滤波器幅度筛选法及幅度作差提取基频判别法分别作比较。最后的判别正确率接近90％。,The use of autocorrelation-based frequency extraction method to determine male and female voices, and with band-pass filter magnitude and rate of screening for differential extraction of
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信号傅里叶变换的matlab程序，包括对幅频和相频的图形绘制-Signal Fourier transform matlab program, including the magnitude and phase frequency of the graphics rendering
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Draws the magnitude of vector x in the time domain, and draws its power spectrum in dB where the number of frequency points is npointsDFT.
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利用FFT估计正弦信号的频率,要估计一个叠加了高斯白噪声的正弦信号 的频率 ，可以通过对x(n)做傅里叶变换，得到频谱图，找出幅度的最大值对应的频率值 ，进行多次变换，求出均方误差 。改变信噪比SNR，通过仿真可以得出随着信噪比增加，均方误差减小。-Sinusoidal signal using FFT frequency estimation, to estimate a Gaussian white noise superimposed on the frequency of sinusoi
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使用Matlab进行wav文件的基音频率提取，包括自相关法、平均幅度差法和倒谱法等。-Wav files in Matlab to extract the pitch frequency, including the auto-correlation method, average magnitude difference method and the cepstrum method.
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％ this a experiment that input is done using the sound card
％2003,6,3
％Usage:[second,voltage,frequency,magnitude]=soundin (VoiceFrequencyFactor,rate)
％VoiceFrequencyFactor is set as 1/8 and rate as 8000, when the Frequency is
％ below 40hz ro
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the magnitude responses in dB of the window functions in the frequency domain
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基于凌阳单片机的简易语音数字频率计源码.实验了语音播报测量的频率,幅度值等.-Sunplus based on a simple single-chip voice Digital Cymometer source. Experimental measurement voice broadcast frequency and magnitude of value.
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the programs are an introduction to DSP ,the programs illustrate the frequency response ,impulse response and magnitude response
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2048点实序列fft 采用优化地方法节省存储空间和运算时间。包括2048点实序列fft，信号幅度谱分析和排序。本程序用于基于tms320lf2407的波形采集与分析上，能够精确分析信号的幅度和频率分量。-2048-point sequence is optimized to fft method used to save storage space and computing time. Including the 2048-point real sequence fft, signal am
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使用维纳分布进行瞬时频率估计用来校正电离层非线性相位污染带来的频带展宽-High-frequency (HF) sky-wave radar
signals propagate to and from the target by means
of the ionosphere. The difficulty in obtaining very
narrow beamwidths at HF, and the long ranges
involved, mean that the
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Simple and very easy to use software ,a good way to learn DSP. sketch and analyze the dft of sinusoids,pole-zero placements, magnitude plot ,phase plot, frequency response of a digital filter ( even no need to install) just click the file and enter t
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包含图像幅度变换、相位图像变换、成分滤波、方位滤波代码-Contains an image transform magnitude and phase images transform, filter elements, filter code position
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基于020的简易信号分析仪，能够实现40khz以下的方波、三角波、正弦波频率、幅值检测及频谱分析。-Signal-Analysis system based on 020. Measuring magnitude, frequency of square,triangle,and sin signal under 40khz,including frequency spectrum analysis.
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VHDL分频程序：将输入为MHz数量级的频率进行分频，得到自己所需的Hz数量级频率。
七段数码管显示程序：将输出进行译码，通过数码管显示。-VHDL divider, divide the input MHz frequency of the order of magnitude, to get the required Hz magnitude frequency.
Segment digital tube display program: the output of decoding
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