KD-Tree

GSA,万有引力算法用于求解智能优化问题,效果特好!!(GSA, Gravitation intelligent optimization algorithm is used to solve problems, good special effects!!)

matlab下实现kaplan算法，测量心率变异性特征的文件，包括谱分析工具(Matlab under kaplan algorithm, measuring heart rate variability characteristics of the document, including spectral analysis tools)

说明：  当今世界电子对抗日益激烈，对于雷达低截获和抗干扰能力的研究越来越受到关注。OFDM (Orthorgonal Frequency Division Multiplexing，正交频分复用)雷达具有大时宽带宽积、波形设计方法灵活、频谱利用率较高以及低截获性能好的特性，因此逐渐成为雷达领域的重点研究方向。除此之外，OFDM信号时域和频域波形都比较复杂，当雷达信号采用OFDM技术时，敌方很难精确估计发射信号波形和瞬时频率，使得截获机不容易分析出检测到的雷达信号。当面对敌方的欺骗式干扰时，对于同样具有大时宽带宽积的线性调频信号，OFDM信号具有更好的抗欺骗式干扰的性能，因此OFDM技术在雷达上的运用愈来愈得到关注。(As electronic warfare becomes increasingly fierce, low intercept probability radar has become an important research filed in electronic countermeasures. OFDM (Orthorgonal Frequency Division Multiplexing) radars have gradually emerged due to their high spectrum efficiency, large time-bandwidth product, flexible waveform design methods, and low intercept probability.In addition, because of the complex time-frequency characteristics of the transmitted signal in OFDM radar, the enemy is difficult to estimate the transmitted signal waveform and instantaneous frequency.When faced with enemy deception interference, OFDM signals have better anti-spoofing performance for LFM signals that also have a large time-bandwidth bandwidth product. Therefore, the use of OFDM technology in radar is attracting more and more attention. .)

主要用来仿真QAM的关于MATLAB的调制和解调代码，重点仿真了在高斯白噪声下的性能分析，同时画出了各个数据处理节点的波形图，重点画出了星座图，误码率等指标性能。后期会重点讲相关的matlab代码移植到FPGA中进行设计实现。

this is a simulink model of upfc based on matrix converter

说明：  simulink 搭建的rach信道及其接收端模块，用于rach信道和接收机仿真。(imulink erected rach channel and the receiver module, channel and receiver for rach Simulation.)

tiles images........................................

自写策略，MA均线突破，20日均线和50日均线突破的策略，仅供参考(MA20 & MA50 STRATEGY)

加入重复控制，bXYCZIo参数三相光伏逆变并网的仿真，代码里有很完整的注释和解释，基于互功率谱的时延估计，fUIRmUe条件给出接收信号眼图及系统仿真误码率，仿真图是速度、距离、幅度三维图像。( Join repetitive control, bXYCZIo parameter Three-phase photovoltaic inverter and network simulation, Code, there are very complete notes and explanations Based on the time delay estimation of power spectrum, fUIRmUe condition The received signal is given eye and BER simulation systems, FIG simulation speed, distance, amplitude three-dimensional image.)

说明：  根据此算法可以将补偿函数与刘维尔分数阶导数相结合，则可以得出高精度的caputo分数阶导数。(According to this algorithm, the compensation function can be combined with the Liouville fractional derivative, and the Caputo fractional derivative with high accuracy can be obtained.)