BF_filter

实现DQPSK信号调制解调功能，并给出了详细的matlab仿真结果(The realization of DQPSK signal modulation and demodulation functions, and gives a detailed matlab simulation results)

基于回溯法的机器人路径规划matlab源代码，一个主程序和两个子程序组成。(Backtracking-based robot path planning matlab source code, consisting of a main program and two subroutines.)

matlab与vpi联合仿真。一整套的OFDM系统，包括信号的产生，解调和判决等。(matlab vpi and co-simulation. Set of OFDM systems, including signal generation, demodulation, and the judgment and the like.)

Bluetooth is a wireless technology that allows computers, phones, headsets, PDA s and other devices to wirelessly communicate over short distances (up to 33 feet). Bluetooth uses radio waves (in the 2.4 GHz range), and is designed to be a secure, low power and inexpensive way of connecting and exchanging information between devices without the need for wires or cables to link devices together.

说明：  压缩感知（Compressive Sensing(CS)，或称Compressed Sensing、Compressed Sampling）。该理论指出：对可压缩的信号可通过远低于Nyquist标准的方式进行采样数据，仍能够精确地恢复出原始信号。该理论一经提出，就在信息论、信号/图像处理、医疗成像、模式识别、地质勘探、光学/雷达成像、无线通信等领域受到高度关注，并被美国科技评论评为2007年度十大科技进展。(Compressed Sensing (Compressive Sensing (CS), known as Compressed Sensing, Compressed Sampling). The theory states: compressible signal can be much lower than the Nyquist criterion for sampling data, and still be able to accurately recover the original signal. The theory was put forth, to receive significant attention in the field of information theory, signal/image processing, medical imaging, pattern recognition, geological exploration, optical/radar imaging, wireless communications, and Technology Review named the 2007 top ten scientific and technological progress.)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

CHAPTER 10 控制系統的設計 許多受控程序的轉移函數包含一對或更多對的共軛複數極點。在s 平面中若複數 根非常接近虛數軸，則閉迴路系統會變成輕微阻尼或不穩定(CHAPTER 10 control system design of many controlled program transfer function contains a pair or more pairs of conjugate complex number of poles. If the plural in the s-plane root number very close to the imaginary axis, then the closed loop system becomes slightly damped or unstable)

该文件含有高斯信号产生的完整代码，用matlab编写的，并含有详细的注释,另外还有两个小波基的使用的详细注解(This file contains the complete code for the Gaussian signal is generated, using matlab, and contains detailed notes, in addition to the use of two small Porgy detailed comments)

在matlab上实现灰度共生矩阵的生成以及特征的提取(GLCM texture matlab)

输入某一点的应力值（6个），可以求出其主应力、主应力方向以及切应力值(Enter a point of stress (6), can find the principal stresses, principal stress direction and the shear stress)