MIMO OFDM 使用 MATLAB

这里用的是正交多项式变换法 实现两幅多聚焦图像的融合(Used here orthogonal polynomial transformation method is to achieve more than two-focus image fusion)

说明：  精心搜集的IQ解调方面的matlab程序和资料文档 非常好 快点下把(Carefully collected the IQ demodulation matlab program and data documentation is very good quickly download)

构建了三自由度四轮转向汽车的状态空间模型，可以直接进行时域、频域、稳定性等方面的控制(The state space model of three degree of freedom four wheel steering vehicle is constructed, which can be simulated directly in time domain, frequency domain, stability and so on)

说明：  二体问题求解程序 包含两个文件： 1.orbit_solver.m 初始化程序，数值计算并画图输出。 在此设置卫星的初始位置坐标r0和速度v0，设置仿真起止时间t0和tf，然后可以直接运行即可。 2.dif_orbit_dynamic.m 轨道动力学函数，包括无摄动力学和J2摄动下的动力学方程，具体采取何种动力学需要在此程序中进行设置。(Two body problem solving program There are two files: 1.orbit_ Solver. M initialization program, numerical calculation and drawing output. Set the initial position coordinate R0 and speed V0 of the satellite, set the start and end time t0 and TF of the simulation, and then it can run directly. 2.dif_ orbit_ Dynamic. M orbit dynamics function, including the unperturbed dynamics and the dynamics equation under J2 perturbation, which dynamics should be set in this program.)

说明：  基于AES和RSA加密算法的RFID安全机制 考虑到对国内应用最广泛的Mifarel系列标签的安全手t一级， 在建立以 MFRC500为读卡核心的RFID读卡系统的基础上，提出了一种基于非 对称加密与对称加密算法相结合的RFID安全机制。利用一1卜对称力11密算法对对称 加密算法的密钥的二次加密，做到只有特定的读写器才能拥有读写卡的权利。该 安全机制跳过RFID在开放环境中传输所面临的各种威胁，通过利少月安全性和稳 定性久经考验的公开安全加密算法对存入智能卡信息的重加密，解决了RFID所 面临的安全和隐私泄露问题 (Taking into account the most widely used domestic Mifarel series of labels t a safe hand, In the establishment of MFRC500 as the reader, RFID reader system, the core was proposed based on a based on non- Symmetric encryption and symmetric encryption algorithm is a combination of RFID security mechanism. The use of a one-Bu symmetry edge 11 close to the symmetric algorithm The key encryption algorithm for re-keying, so that only certain card reader in order to have the right to read and write. The Skip RFID security mechanisms to transfer in an open environment faced by a variety of threats, through the pros on the security and stability Qualitative time-tested public security encryption algorithm into the smart card information, re-encryption, solved by RFID Faced with the problem of security and privacy leaks)

3点法计算数值微分，你可以试试看，3dianfa jisuan shuzhiweifen (calculate the numerical differentiation using the three point method)

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信号相干时MUSIC算法与改进MUSIC的比较仿真源代码(Signal coherence between MUSIC algorithm and improved MUSIC simulation source code)

说明：  本文件为水下定位系统 长基线水声定位的代码。(This document is the code for long baseline positioning of underwater positioning system.)

说明：  多极坐标搜素，一个局部与全局最优的兼容方法(Multi-polar search element, a local method is compatible with the global optimum)