LTSPL991

本程序是写的是扩展高斯（EGF）滤波器，当两个输入为根号1/2的时候就是IOTA滤波器，用于通信系统发端的波形塑形(This function calculates a filter with egf characteristic)

说明：  仿真V-BLAST结构MMSE检测算法性能，调制方式为QPSK(The performance of V-BLAST MMSE detection algorithm is simulated, and the modulation mode is QPSK)

说明：  FM（Frequency Modulation）即调频，习惯上用FM来指一般的调频广播（76-108MHz，在中国为87-108MHz、日本为76-90MHz），事实上FM也是一种调制方式，(FM (frequency modulation) refers to the general FM broadcasting (76-108mhz, 87-108mhz in China and 76-90mhz in Japan). In fact, FM is also a modulation mode,)

mimo-ofdm系统基于梳状导频的信道估计，使用最小二乘法，线性内插。(mimo- ofdm system based on comb-Pilot channel estimation, the use of least squares linear interpolation.)

说明：  根据目前的数据进行了SEIR模型的代码实现(SEIR code implementation)

多径瑞利衰落信道的应用，QPSK信号通过该信道后分析信道冲激响应等(Multipath Rayleigh fading channel applications, QPSK signal through the channel after the channel impulse response analysis, etc.)

一个二级倒立摆的仿真程序。使用线性二次型（LQR）最优控制。(A simulation program for a two - stage inverted pendulum.)

不同的相邻分组数目v实现的pts抑制ofdm峰均比的算法，可以仿真出v越大，papr的性能越好(Different number of adjacent sub-v realize the pts OFDM PAPR suppression algorithms, simulation of v can be greater, papr better performance)

连续小波变换：小波函数与原信号对应点相乘，再相加，得到对应点的小波变换系数，平移小波基函数，再计算小波函数与原信号对应点相乘，再相加，这样就得到一系列的小波系数。对于离散小波变换（由于很多小波函数不是正交函数，因此需要一个尺度函数）所以，原信号函数可以分解成尺度函数和小波函数的线性组合，在这个函数中，尺度函数产生低频部分，小波函数产生高频部分。(Continuous wavelet transform: a series of wavelet coefficients are obtained by multiplying and adding the corresponding points of the original signal, translating the wavelet basis function, and calculating and adding the corresponding points of the original signal. For discrete wavelet transform (many wavelet functions are not orthogonal functions, so a scale function is required), the original signal function can be decomposed into a linear combination of scale function and wavelet function, in which the scale function generates the low frequency part and the wavelet function generates the high frequency part.)

STM32F105 HOST 读写U盘操作(STM32F105 HOST read and write USB)