split_block

QPSK调制全称Quadrature Phase Shift Keying ,意为正交相移键控，是一种数字调制方式。数字信号的四相相移键控调制与解调技术以其灵活性和通用性而得到广泛的应用，符合未来数字通信技术发展的方向。随着移动通信技术的发展，以前在数字通信系统中采用FSK、ASK、PSK等调制方式，逐渐被许多优秀的调制技术所替代。(QPSK modulation partial Quadrature Phase Shift Keying, Quadrature Phase Shift Keying means, is a digital modulation. Digital signal quadrature phase shift keying modulation and demodulation technology for its flexibility and versatility which has been widely used, in line with the future direction of development of digital communication technologies. With the development of mobile communication technology, previously used in digital communication systems FSK, ASK, PSK modulation, etc., many excellent modulation gradually being replaced by technology.)

由国内李晓磊博士提出的优化算法,具有跳出极值的优良特性。(an algorithm proposed by doctor Li Xiao Lei)

功能为特征提取，即它是从高维数据到低维数据(The source code for the feature selection to reduce the high-dimensional data low-dimensional data)

frft用于线性调频信号多普勒调频率估计(frft transform for doppler frequency rate estimation)

matlab的经济工具箱介绍，包括函数的介绍应用等方面，具有很好的使用价值。(economic toolbox matlab introduction, including the introduction of applications such as function, with good use value.)

用单球面透镜对日亚红色激光准直仿真，仿真以casio为模型(This is a model of RED LD focusing experient，basing on the casio product。)

由2个麦克风组成的麦克风阵列，画出它的方向图(Microphone arrays of the two microphones, shown in Fig its direction)

这是一个关于LDPC中的GIRTH4-COUNT的代码！( This program can produce the Parity Check Matrices of girth4-count codes, while Ref. remindes you that these codes are not good as the LDPC codes IEEE802.16e for continuous bits errors. )

wavelet edge detecter as a matlab source

用于现代信号分析与处理课程，系统辨识、维纳滤波和自适应滤波(Used in modern signal analysis and processing programs, system identification, Wiener filtering and adaptive filtering)