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digital and analog signal spectrum

this code of matlab finds the roots of equation by gauss elimination mthod

Phase-Based UHF RFID Tracking With Nonlinear Kalman Filtering and Smoothing

结构分析的有限元法与matlab程序设计4-1(Structural analysis of the finite element method and matlab programming 4-1)

一维扩散，耦合数值模拟主程序，这个程序还算比较清楚了。选自一篇文章的主程序(1D，Predator-Prey Model Simulation)

Amplitude modulation and demodulation

this is a simulation program that simulates a random event in which you enter a the number of floors in a building and the number of elevators in a group and it generates a random event so you could analyze it

其中包含了一些不同条件下的粒子群算法，希望对大家有所帮助。(Which contains a number of particle swarm algorithm under different conditions, we want to help.)

matlab数据的预处理代码，rscore(preprocessor code matlab data, r score)

说明：  利用遗传算法优化BP神经网络权值和阈值，然后进行训练，利用训练好的模型进行预估。附实例(The use of genetic algorithm to optimize BP neural network weights and thresholds, and then training, training a good use of forecast models. Attached examples)