smart_antenna1

无线传感器网络在不同节点数量下，连通率与通信半径的关系，利用蒙特卡洛方法仿真1000次(Relations between communications radiusand connectivity rate in WSN)

一个用于模拟人的听觉神经系统的工具包，由meddis开发。主要模拟从外部刺激到机电过程转换后的过程。(One for the nervous system of human hearing simulation toolkit developed by the meddis. Main simulation process from the external stimulus to the electromechanical conversion process.)

说明：  AD835的仿真模型,用matlab的工具箱，simulink搭建的(AD835 simulation model, using matlab toolbox, simulink built)

MATLAB讲解，有详细的设计方法和图示，对初学者是很好的一本资料(MATLAB explanations, detailed design and icons, for beginners is a good information)

说明：  梯度下降法是一個一階最佳化算法，通常也稱為最速下降法。 要使用梯度下降法找到一個函數的局部極小值，必須向函數上當前點對應梯度（或者是近似梯度）的反方向的規定步長距離點進行疊代搜索。如果相反地向梯度正方向疊代進行搜索，則會接近函數的局部極大值點；這個過程則被稱為梯度上升法。(The gradient descent method is a first-order optimization algorithm, also commonly referred to as the steepest descent method. To find the local minimum of a function using the gradient descent method, an iterative search must be performed to the specified step distance point in the opposite direction of the gradient (or approximate gradient) of the current point on the function. If the search is reversed in the opposite direction to the positive direction of the gradient, it will approach the local maximum point of the function; this process is called the gradient ascent method.)

signals snr ratio by opertions

ADSP stuff. 360°circling sound designed based on matlab. Can load any .wav file to try.

说明：  西储大学轴承数据，故障特征频率明显，与理论值基本符合。(The bearing data of Xichuan University have obvious fault characteristic frequency, which is basically in accordance with the theoretical value.)

采用脉冲响应不变法和双线性变换法设计IIR数字滤波器。 (Using impulse response method and bilinear transform IIR digital filter design. )

步进频，线性调频信号的雷达回波数据处理，单脉冲雷达(Stepped frequency signal processing)