Amplifer_Application

采用LDPC编码对随机的二进制序列进行纠错编码和基带调制，在AWGN信道上进行传输，然后在接收端并采用合适的方式进行解调和译码，最后对纠错编码的性能加以分析。(LDPC codes using random binary sequence of error-correcting coding and base-band modulation, for transmission in the AWGN channel, and then at the receiving end and use the appropriate manner demodulation and decoding, error correction coding on the performance of the final analysis.)

说明：  PUMA560的matlab仿真程序，有工作空间路径规划。(PUMA560 of matlab simulation program, a work space path planning.)

this file contain the matlab code and source code file .it is used for separation of lung sound from heart sound

首先分析了瑞利衰落信道统计特性，并在此基础上给出了clarke模型，然后提出仿真方法，包括成形滤波法、jakes仿真模型及其多种改进方法，接着阐述了上述仿真模型的软件实现过程，并利用matlab进行了计算机仿真，然后给出衰落信号的仿真信号和分析结果，仿真结果证明了提出的仿真模型与理论曲线匹配度高，可以很好地模拟无线衰落信道(First analyze the statistical properties of the Rayleigh fading channel, and clarke model is given on this basis, and then asked the simulation methods, including the forming of the filter method, the the jakes simulation model and a variety of improvement, then described the simulation model of the software implementationprocess, and using matlab computer simulation, and then gives the simulated signals and analysis results of the fading signals, simulation results show the proposed simulation model with the theoretical curve to match high, can simulate the wireless fading channel)

莫尔斯码的幅度调制与解调:信号x(t)含有一段简单的消息，由文件ctftmod.mat定义，由x(t)解出所需信息(The amplitude modulation and demodulation of the Morse code:the signal x (t) contains a simple piece of information, as defined by the file ctftmod.mat information required by the solution x (t))

基于MATLAB的一阶和二阶模型辨识程序（加入1 的白噪声）仿真后得出辨识以及实际阶跃图形(MATLAB-based first-order model identification procedures (adding 1 white noise) simulation based on the identification of the actual step graphics)

用于接收机的载波同步，利用锁相环实现解调，用于相干解调(Carrier for receiver synchronization, phase-locked loop to achieve demodulation for coherent demodulation)

matlab檔案，用於計算定位成功率，輸入nmea檔案，自動計算NMEA定位的成功率(Calculate the fix yield rate)

matlab documentation

此程序用于求有向网路和无向网路的节点的度(This procedure is used to beg for the degree of the nodes of the network to the Internet and no)