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qpsk
定义锁相环的工作模式:单载波为“1”、BPSK调制为“2”、QPSK调制为“3”(The definition of phase-locked loop mode of operation: single-carrier for the " 1" , BPSK modulation for the " 2" , QPSK modulation for the " 3" )
- 2009-03-18 21:27:03下载
- 积分:1
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activlev
ACTIVLEV Measure active speech levelin voice commands
- 2011-07-13 01:44:13下载
- 积分:1
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DSP
说明: 首先,建立两个模拟信号的数学模型 有用信号 干扰信号。两个信号的中心频率、信号带宽等参数由学生自己选定,要求两个信号的频谱不重叠 分别画出三个模拟信号的时域波形和频谱图;然后,根据x_a (t)的中心频率和带宽,按照奈奎斯特采样定理选择采样频率fs,分别对信号s_a1 (t)、s_a2 (t)、x_a (t)进行时域采样,得到离散信号s_1 (n)、s_2 (n)、x(n)。利用FFT算法分析离散信号的频谱,分别画出三个离散信号的时域波形和频谱图;
接着,设计数字滤波器H(z),要求该滤波器对干扰信号s_2 (n)的衰减大于40dB。提出滤波器的设计指标,并设计滤波器,给出滤波器的设计结果,绘制滤波器的幅频特性和相频特性曲线,验证滤波器的设计结果是否达到设计指标要求;此外,选择实现数字滤波器H(z)的结构,画出滤波器结构信号流图;然后,将合成信号x(n)输入数字滤波器H(z),按照所选择的滤波器结构,设计计算机程序计算滤波器的输出响应y(n),画出y(n)的时域波形和频谱图;(the synthetic signal x (n) is input into the digital filter H (z). According to the selected filter structure, a computer program is designed to calculate the output response y (n) of the filter, and the time-domain waveform and spectrum diagram of Y (n) are drawn)
- 2020-05-26 14:26:10下载
- 积分:1
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script_bpsk_ber_awgn_hamming_7_4_code---Copy
Simulate Hamming code in a simple system with BPSK modulation
- 2012-05-08 13:35:10下载
- 积分:1
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Untitled
对07 年b数学建模用matlab解决了如何求直达矩阵,程序简单(07 b of the use of mathematical modeling to solve how to find direct matlab matrix, the program simply)
- 2011-08-18 21:04:41下载
- 积分:1
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fuzzy_sugeno
fuzzy sugeno sets in matlab
- 2012-12-03 20:50:12下载
- 积分:1
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MATLAB_optimization_calculation
matlab最优化计算,包括多种优化算法。(matlab optimization calculation, including a variety of optimization algorithms)
- 2021-03-09 21:59:27下载
- 积分:1
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line.detection(2).ps
perform edge detection of woman
- 2009-12-09 23:04:48下载
- 积分:1
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tu_plot
根据邻接矩阵绘制图论图形。看注释使用,可以区分有向图和无向图(Draw Graph theory picture with adjstance matrix.Use it with explanatory notes.It can tell picture with direction whether or not)
- 2012-04-13 15:59:37下载
- 积分:1
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eigenfaces_sample
Eigenfaces is used to representing a face by projecting original images onto a face space defined by eigenvectors, and then a new face is compared to known faces by calculating the distance between their projections onto face space. (Eigenfaces is used to representing a face b y original projecting images onto a face space d efined by eigenvectors. and then a new face is compared to known faces by c alculating the distance between their project ions onto face space.)
- 2007-05-18 06:45:01下载
- 积分:1