DOP_test

gps tracker protocol of uniguard of model nr024

说明：  通过串口读取GPRMC语句，并进行解包处理(read and deal GPRMC from UART)

1.用matlab实现对一个元音和一个清辅音的LPC系数，LPCC系数和MFCC系数的提取。 2，用LPC对这两个语音信号的功率谱进行估计，其中，LPC系数要分别有5阶，10阶，15阶和20阶四种情况，并在一个图里画出信号本身的FFT功率谱和四条不同阶数的LPC谱估计图，以作比较。注意，LPC和LPCC只考察自相关法。 3，用对数面积比的方法来求出这两个发音的变截面声管模拟图形，10阶即可(Using matlab to achieve the LPC coefficients of a vowel and a voiceless consonant, the extraction of LPCC Features coefficients and MFCC coefficients. LPC both the speech signal power spectrum estimate, which, LPC coefficients, respectively, five bands, 10 bands, 15 bands and 20 the first four cases, and draw a graph of the FFT power of the signal itself spectrum and four different orders of LPC spectral estimation map, for comparison. LPC and LPCC only examine the autocorrelation method. 3, the number of area ratio method to calculate the variable cross-section of the two pronunciation sound tube simulation graphics, 10 bands can be)

说明：  GOGPS是在MATLAB中开发的,旨在提供一个有用的工具,用于进行全球导航卫星系统相关研究。它提供了一个测试ne算法和实验功能的平台。(goGPS is developed in MATLAB and it is aimed at providing a tool useful for carrying out GNSS-related research. It provides a platform for testing ne algorithms and experimental functionalities.)

GPS信号中C/A码的傅里叶变换，matlab程序(GPS signal C/A code of the Fourier transform, matlab program)

说明：  各种水印攻击实验，包含了大部分的操作，例如压缩，剪切，旋转等(various experimental watermark attacks, including most of the operations, such as compression, shear, rotate, etc.)

Direct Sequence Spread Spectrum Technique with Residue Number System

说明：  广义最小方差控制，较为完整，通过仿真亲测实用性较高，不需要实际数据，仅仅需要模型。(The generalized minimum variance control is more complete. It is more practical to test by simulation. It does not need the actual data, only needs the model.)

its a matlab code for ofdm with 16 qam

说明：  基于匹配理论的设备间底层通信资源分配，使用matlab实现的(Resource Allocation using Matching Theory for Device-to-Device Underlay Communication)