leachm1vsleachm2

Another source code to simulate LMS adaptation algorithm using Matlab.

MATLAB通信原理FSK调制源代码文件(Communication Theory FSK modulation MATLAB source code files)

在无线通信体系中,由于开放的通信信道条件,卫星通信系统中通信链路容易受到平均大气条件的影响,尤其是采用Ka波段的高频信号的系统,容易受到降雨造成的雨衰影响,严重影响了系统的有效性和可靠性。(In a wireless communication system, the communication channel open, average atmospheric conditions vulnerable to the communication link in satellite communication system, especially the system of high frequency signal using Ka band, vulnerable to the influence of rain attenuation caused by rainfall, seriously affect the validity and reliability of the system. In digital systems, channel coding is often used to improve reliability, while modulation is used to ensure effectiveness. Low order modulation and large redundancy coding are adopted to improve the reliability.)

三维FDTD的UPML吸收边界条件下的C程序(The three-dimensional FDTD UPML absorbing boundary C program)

完整的希尔伯特时频谱程序，可直接运行查看结果，对EMD初学者很有帮助，内附HHT源码。(A complete Hilbert spectrum program, which can be run directly to view the results.It is helpful to the EMD beginners.And the HHT code is enclosed.)

matlab下用小波去除随机噪声的一个例子，希望对大家有用(matlab remove the random noise using wavelet under an example, we hope to be useful)

Database management systems

某炮弹质量为20KG，直径120mm，出炮口是的初速为800m/s，初始发射角等于45°，试计算弹道。解答过程与程序详解(A shell quality is 20 kg, 120 mm in diameter, out of the muzzle velocity of 800 m/s, initial emission Angle is 45 °, try ballistic calculation. The solution process and procedure, rounding)

本文首先研究了ISAR成像的基本原理，在理想转台模型的基础上对距离-多普勒(R-D)成像算法做了分析，对目前常用的运动补偿技术进行了对比和研究，并将这些技术用于雅克-42飞机的实测数据中。然后，论文系统地论述了压缩感知主体理论，重点对信号重构中的基追踪(BP)算法和正交匹配追踪(OMP)算法进行了深入的研究和讨论，并通过正弦信号的仿真结果验证了两种方法的有效性。(Firstly, the basic principle of ISAR imaging study, based on an ideal model for distance turntable- Doppler (RD) imaging algorithm to do the analysis of the motion compensation techniques currently used are compared and studied, and the use of these technologies in the measured data in the Yak-42 aircraft. Then, the paper systematically discusses the theory of compressed sensing body, focusing on the signal reconstruction of the base track (BP) algorithm and orthogonal matching pursuit (OMP) algorithm is conducted in-depth studies and discussions, and the simulation results verify the sinusoidal signal the effectiveness of the two methods.)

本文件为深圳杯数学建模大赛D组题目的全部相关程序，没有题目 只有解答过程和程序~已经把数学问题精炼出来了(This document is all related procedures for group D questions of shenzhen cup mathematical modeling contest. There are no questions, only the solving process and procedures. The mathematical problems have been refined.)