Description: This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise.
The packet include:
1) Packet Builder (Viterbi Encoding, Interleaver, PN generation)
2) Modulator (RRC filter)
3) Demodulator (Matched Filter, RAKE receiver)
4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder).
You should run "Simulation.m" function that include all modules. Platform: |
Size: 10240 |
Author:李南 |
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Description: This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate.
The simulation is written for static channel and AWGN noise. The packet include:
1) Packet Builder (Viterbi Encoding, Interleaver, PN generation)
2) Modulator (RRC filter)
3) Demodulator (Matched Filter, RAKE receiver)
4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder).
You should run "Simulation.m" function that include all modules-This packet is a IS-95 baseband simulation for a channel data rate of 9.6 KBps. The simulati on is written for static channel and AWGN noise. The packet include : 1) Packet Builder (Viterbi Encoding. Interleaver. PN generation) 2) Modulator (RRC filter) 3) Dem odulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterl eaver. Viterbi Decoder). You should run "Simulation. m "function that include all modules Platform: |
Size: 10240 |
Author:lisi |
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Description: 了实现采用GPRS(通用分组无线电业务)网进行远距离数据传输,采用Cygnal公司的带有USB(通用串行总线)接口的8051F320单片机和西门子公司的GPRS模-achieve using GPRS (General Packet Radio business) network for remote data transmission, Cygnal used with the USB (Universal Serial Bus) interface to the 8051 F320 microcontroller and the West Gate affiliates GPRS module Platform: |
Size: 345088 |
Author:lkw |
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Description: 用matlab写的以太网报头提取工具。它可以截获网络数据包并记录下它的时间戳、数据包长度和数据域等。-Written by matlab Ethernet header extraction tool. It can be intercepted network packets and record its timestamp, packet length and data domains such as. Platform: |
Size: 2879488 |
Author:dy |
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Description: 该程序描述的是数字电视地面广播中卷积交织部分.因为是卷积交织所以最后结果中出现为的数值表示该值是前一包缓冲数据的数.但针对第一包数据做卷积交织时,这些零位置上最后确实自动补零.-The procedure is described in digital TV terrestrial broadcasting in parts of Convolutional Interleaver. Convolutional Interleaver because it is so final results for the numerical value is that the previous data on the number of packet buffer. But for the first packet data do Convolutional Interleaver These zero position is indeed the last automatic zero. Platform: |
Size: 2048 |
Author:Sue |
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Description: This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate.
The simulation is written for static channel and AWGN noise. The packet include:
1) Packet Builder (Viterbi Encoding, Interleaver, PN generation)
2) Modulator (RRC filter)
3) Demodulator (Matched Filter, RAKE receiver)
4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder). -This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise. The packet include: 1) Packet Builder (Viterbi Encoding, Interleaver, PN generation) 2) Modulator ( RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder). Platform: |
Size: 10240 |
Author:老何 |
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Description: 小波变换数据包，适用于各种图像处理，信号去噪，数据分频等，还是很好用的-Packet wavelet transform, applied to a variety of image processing, signal de-noising, data frequency, etc., or a good used Platform: |
Size: 2803712 |
Author:zyl163 |
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Description: WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamble
9. 在时域产生long preamble
10. 将preamble和数据符号组成packet
11. 升采样
得到信道传输的数据Tx_signal_up
具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling received data transmission channel Tx_signal_up specific procedures see Annex wlan_transmitter.m Platform: |
Size: 1024 |
Author:福东方 |
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Description: 这是《小波分析理论与MATLABR2007实现》的源代码。主要是基于Matlab的小波工具箱实现小波基选择、小波包分解、Mallat变换以及小波变换在边缘提取、图像去噪、数据压缩等中的应用，特别包含了二代提升小波的相关内容，理论与实际相结合。大家想要了解的二进小波、正交镜像滤波器组[QMF]等概念这里都有体现。-This is 《MATLABR2007 wavelet analysis theory and implementation》 of the source code. Mainly based on the Matlab wavelet toolbox implementation of wavelet selection, wavelet packet decomposition, Mallat transform and wavelet transform in edge detection, image denoising, data compression, such as the application, in particular, contains a second generation of relevant content Lifting Wavelet theory and reality. Everyone wanted to know about the dyadic wavelet, quadrature mirror filters [QMF] concepts are embodied here. Platform: |
Size: 55296 |
Author:吴 |
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Description: 对信号进行四级小波包分解重构的源程序。将要分解的数据文件存放在E:\ta.wav -4 of the signal reconstruction wavelet packet decomposition of the source. Decomposition will be stored in the data file E: \ ta.wav ' Platform: |
Size: 1024 |
Author:yanhaifeixue |
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Description: 通过采集数据，绘图（丢包与时间的关系）实现TCP的过程模拟-Through data collection, mapping (packet loss and time) to achieve the process of TCP simulation Platform: |
Size: 18432 |
Author:abby |
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Description: CRC和RS的组合编码，自编程序，能正确运行通过。
CRC+RS+交织
编码：计算CRC-->RS-->交织
数据：19byte 21byte 49byte 49byte
解码：解交织-->校验CRC-->输出/解RS后输出-->CRC校验-->输出
交织以7x7求转置交织，元素以字节为单位，交织深度7字节
数据量：19byte---->49byte（中包）
小包：10byte 12byte 28byte(小包)
-A combination of CRC and RS encoding, self-compiled program to run correctly passed. CRC+ RS+ Interleaved Coded: Calculate CRC-> RS-> intertwined Data: 19byte 21byte 49byte 49byte decoding: deinterleave- " Check CRC-> Output/de-RS after the output-> CRC School inspection- " output-cutting in order to seek Transpose 7x7 mixed, the element in bytes as a unit, cutting depth of 7 bytes of data: 19byte----> 49byte (in packets) packet: 10byte 12byte 28byte (small packs) Platform: |
Size: 9216 |
Author: |
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Description: 这个包实现了ITU - T的G.723.1语音编码器和解码器在Matlab。该方案的目标是提供一个良好的记录和模块化设计方案，实验和研究，以方便使用为基础的实际编码器。
编码器实现了G.723.1的多脉冲模式（在6.3 kb / s的运行）。解码器可以解码的5.3 kb / s的，在6.3 kb的多脉冲/秒，连续传输，数据包丢失隐藏）编码器（所有的ACELP方式。
该编码器和解码器之间的标准接口是位文件（同位文件由ITU - T参考代码产生兼容）。第二个选项之间传递的编码器和解码器使用Matlab的数据信息文件。此选项允许测试通过传递量化或unquantized之间的编码器和解码器的信息。
有报道[1]描述了G.723.1编码与Matlab实现与分布包括在内。 ITU - T建议G.723.1的[2]在线提供。该建议含-This package implements the ITU-T G.723.1 speech coder and decoder in Matlab. The goal of the package is to provide a well-documented and modular program that was designed to facilitate experimentation and research using a practical coder as a base.
The coder implements the multipulse mode of G.723.1 (running at 6.3 kb/s). The decoder can decode all modes of the coder (ACELP at 5.3 kb/s, multipulse at 6.3 kb/s, discontinuous-transmission, packet loss concealment).
The standard interface between the coder and decoder is a bit file (compatible with the bit files generated by the ITU-T reference code). A second option passes information between the coder and decoder using a Matlab data file. This option allows for testing by passing quantized or unquantized information between the coder and the decoder.
A report [1] describing the G.723.1 and the Matlab implementation is included with the distribution. ITU-T Recommendation G.723.1 [2] is available on-line. The recommendation incl Platform: |
Size: 854016 |
Author:zaaa |
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Description: 基于有限混合高斯模型的数据分类
1、使用基于有限高斯混合模型的EM算法对数据样本进行归类
2、使用C++或者Matlab语言编程环境实现该算法，并用给定的数据包对算法的正确性进行检验
-Gaussian mixture model based on limited data classification 1, using the finite Gaussian mixture model based on EM algorithm to classify the data samples 2, using the C++ or Matlab programming environment to realize the algorithm, and with a given data packet to the algorithm correctness testing Platform: |
Size: 5120 |
Author:路江 |
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Description: 数据分组处理算法GMDH源代码是自组织数据挖掘的核心算法，具有很强的泛化能力，相比回归分析法可以处理小样本数据-GMDH packet processing algorithms source code is the core of self-organizing data mining algorithm, which has strong generalization ability, compared with regression analysis can deal with small samples Platform: |
Size: 2048 |
Author:张瑛 |
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Description: Matlab video anlaysis A packet is the basic unit of data in a transport stream. It consists of a sync byte, whose value is 0x47, followed by three one-bit flags and a 13-bit Packet Identifier (PID). This is followed by a 4-bit continuity counter. -Matlab video anlaysis A packet is the basic unit of data in a transport stream. It consists of a sync byte, whose value is 0x47, followed by three one-bit flags and a 13-bit Packet Identifier (PID). This is followed by a 4-bit continuity counter. Platform: |
Size: 27648 |
Author:sakthivel |
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Description: MATLAB模拟数据传输中丢包并测量丢包率-MATLAB simulation of the data transmission rate of packet loss and packet loss measurement Platform: |
Size: 1024 |
Author:刘宇 |
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Description: 本文利用小波以及小波包在数字信号处理中表现出来的优势，将其应用到变换域通信(TDCS)中。针对基于傅里叶变换估计方法无法对非平干扰进行有效估计的缺点，于是小波技术被应用于谱估计中。作为TDCS通信前端的频谱感知阶段所应用的数学工具，进行频谱感知，小波变换可以确定干扰所在频段以及创建小波基函数，用于数据传输。并且将其与其他变换方式的应用场合以及性能进行对比。并且针第二代小波良好的数据压缩性能，拟将其应用于TDCS中，对干扰频谱进行进一步压缩-The article utilized the advantages of wavelet and wavelet packet synthesis applying in the digital signal processing domain, and applied it into the Transform Domain Communication System (TDCS). To composite the shortcomings in Fourier Transform in non-stationary noise, wavelet transform are introduced. As a mathematical tool before transformation, wavelet transform will sensing the environment, locate the interference and create a fundamental modulation waveform（FMW）。Comparison with other kinds of transforms is made in this article as well. As the same time, the second generation wavelet has a good performance in data comprising, we could consider utilizing it into further lifting in the quality of the sensing period. Platform: |
Size: 698368 |
Author:mini |
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