lab7

说明：  greed 算法的程序，程序的结构性，具体的语言描述。

BER-SNR curve of M-QAM modulator in AWGN channel

pdf文档，一种改进的OFDM最大似然符号同步算法。利用导频符号与循环前缀的最大似然算法进行联合同步检测,并可以纠正符号偏差。(An improved symbol synchronization algorithm for OFDM systems is proposed in this paper.)

该段matlab可实现自由摆系统的演示。(The segment can be realized matlab free pendulum system demonstration.)

ask调制解调程序及相应误码率计算。随机产生正弦信号，进行ask幅度调制及解调。(ask modulation and demodulation process. Randomly generated sinusoidal signals, amplitude modulation and demodulation ask.)

OFDM正交子载波调制，一种为BPSK，一种为QPSK，都经历串并转换后IFFT，加高斯白噪声信道而后反向解调。(modulate by BPSK&QPSK then use OFDM)

随机森林算法在图像特征分类回归中的应用，通过结合神经网络进行更好的特征数据处理(Application of random forest algorithm in image classification and regression, better features by combining neural networks data processing)

说明：  关于GMMS中的matlab的示例数据，里面是详尽的代码(For example data of MATLAB in GMMS, there are detailed codes.)

说明：  Today’s wireless networks are characterized by a fi xed spectrum assignment policy. However, a large portion of the assigned spectrum is used sporadically and geographical variations in the utilization of assigned spectrum ranges from 15 to 85 with a high variance in time. The limited available spectrum and the ineffi ciency in the spectrum usage neces- sitate a new communication paradigm to exploit the existing wireless spectrum opportunistically

基于matlab的QPSK信号生成，已加噪。(QPSK signal generated)