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code_BPSK_QPSK_QAM_GMSK
基本的调制解调程序集(包括BPSK,QPSK,QAM,GMSK等)(Modem basic assembly (including BPSK, QPSK, QAM, GMSK, etc.))
- 2009-04-12 09:35:56下载
- 积分：1
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kummer
这个函数估计到库默尔与第N系列的广义超几何微分方程解的权力。库默尔的差分方程为：
x *的克 （十）+（二- X）的*克 （ x）的- A *的为g（x）= 0
该代码只有4线长，利用Matlab的向量运算有权采取了第N广义超几何级数的权力的总和。(This function estimates the solution to kummer s differential equation with the first N powers of the generalized hypergeometric series. Kummer s differential equation is given by:
x*g (x)+ (b- x)*g (x)- a*g(x) = 0
The code is just 4 lines long, using the power of Matlab s vector operations to take the sum over the first N powers of the generalized hypergeometric series.)
- 2011-05-23 12:33:21下载
- 积分：1
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signal_send01
对正选信号进行仿真，画频谱图，并分别在时域和频域对信号延迟。(Positive selection signal delay simulation)
- 2013-03-31 19:31:55下载
- 积分：1
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b
说明： 基于MATLAB GUI 设计的数字信号处理系统，可以实现基本的信号生成，信号分析和信号滤波以及简单的语音信号处理等功能。其中信号生成模块可实现正弦波、方波、三角波、高斯白噪声、chrip信号的生成和叠加；信号分析模块支持基本的傅氏变换下的频域分析功能；信号滤波模块可以实现数字低通、高通、带通、带阻下的切比雪夫、巴特沃思、椭圆滤波器的设计和滤波处理；语音信号处理模块可以实现音频文件的读取、播放、叠加噪声、滤波等功能。(Based on MATLAB GUI design of digital signal processing system, you can achieve the basic signal generation, signal analysis and signal filtering, and simple voice signal processing and other functions. The signal generating module can realize the sine wave, triangle wave, Fang Bo, Gauss, chrip generation and superposition of white noise signal; signal analysis module supports the analysis function of frequency domain Fourier transform basic conditions; signal filtering module can realize digital low-pass, high pass, band pass, band stop, Butterworth, the Chebyshev elliptic filter design filtering and processing of speech signal processing; module can realize audio files to read, play, adding noise, filtering and other functions.)
- 2017-07-27 14:21:43下载
- 积分：1
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main_no_offset_2
假设截获了一段短波数字通信的信号，要求解调出最终的信息，每组解调出来后，将10组信息组合起来，恢复最终的信源输出数据。
先验信息：两组数据文件，编号为1、2，每组I、Q两路存放，格式为“int16”，采样率为9600Sa/s，其中第一组为单径情况，第二组为多径情况。
参数符合MIL-STD-188-110A标准；
同步序列为syn=seq.dat，BPSK调制；
接收机频率稳定度高于1e-6。
文件中有效信息总长度为333.75s，其中同步头长为5/12s，每时隙1/6s，训练序列占10 ，在数据之前；
交织方式为全交织，矩阵交织，列为1000，在比特级进行；
纠错码码率为1/2；
调制方式为BPSK、QPSK和8PSK中的一种，映射方式为二进制，BPSK相位偏移为0，其余两种为 。
(Suppose intercepted signal for a period of short-wave digital communications requires final demodulated information after each demodulated, combining 10 group information, to restore the final output data source.
Priori information: two sets of data file, numbered 1, 2, each I, Q two-way storage, the format is int16 , sampling rate 9600Sa/s, where the first group is a single path, the second group multipath situation.
Parameters meet MIL-STD-188-110A standard
Synchronization sequence syn = seq.dat, BPSK modulation
The frequency stability of the receiver is higher than 1e-6.
File payload total length of 333.75s, wherein the synchronization header length is 5/12s, each time slot 1/6s, accounting for 10 of the training sequence, before the data
Interleaving for the whole interleaving matrix interleaving, as 1000, carried out at the bit level
Error correction code rate of 1/2
The modulation scheme is BPSK, QPSK and 8PSK one, a binary mapping, the BPSK phase offset is 0, the )
- 2016-06-20 19:12:40下载
- 积分：1
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数字信号处理MATLAB
说明： 120多个用MATLAB编写的信号处理程序，它们是本书各个章节的大部分例题。用MATLAB编写的程序的名称由“exa”开头，接下来是所在的章、节及例题的序号，如exa010101,指的是第1章第1节（即1.1节）的第1个例题，即例1.1.1。如果该程序是为了说明某一个m文件的应用，则在上述名称的后面跟一个下划线，再在后面加上所说明的MATLAB文件的名称，如exa011001_rand，即是例1.10.1,该例用来说明rand.m文件的应用。(More than 120 signal processing programs written in MATLAB are most of the examples in each chapter of this book. The name of the program written in MATLAB begins with "exa", followed by the ordinal number of the chapters, sections and examples, such as exa0101, which refers to the first example of chapter 1, section 1 (i.e. section 1.1), namely example 1.1.1. If the program is to illustrate the application of an M file, then follow the above name with an underscore, and then add the name of the MATLAB file, such as exa011001_rand, which is Example 1.10.1. This example is used to illustrate the application of rand.m file.)
- 2020-11-18 14:59:38下载
- 积分：1
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极坐标图和三维图
线阵，面阵，圆阵方向图，包含极坐标图，和三维图(Linear array, planar array, circular array pattern, including Polar, and three-dimensional map)
- 2021-04-09 11:59:00下载
- 积分：1
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NNNJ
用MATLAB编写的一种新的神经网络训练程序，可以按照要求训练网络。(MATLAB prepared a new neural network training program, we can follow the training requirements of the network.)
- 2007-06-04 22:02:40下载
- 积分：1
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20063311048067583
角点是图像的重要特征，一般指曲率大的边缘点，该代大戏是用MATLAB编写的角点检测算子。(corner image is an important characteristic of large curvature generally refers to the brink, The show is substituting prepared using MATLAB corner detection operator.)
- 2007-06-20 10:33:19下载
- 积分：1
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DAC_FFT_analysis
用于DAC测试，分析动态性能的matlab程序(Program for Dynamic analysis of Digital-to-Analog Converter, Used in DAC testing, )
- 2014-10-10 19:16:07下载
- 积分：1
