buduichen

采用最速下降法查找最小值，采用H终止准则，计算时间很快，很适合初学者使用(Steepest descent method using the minimum search using H termination criteria, the computation time soon, it is suitable for beginners to use)

bpsk with ber calculation

UWB viterbi decode matlab代码； 包括自己实现的matlat viterbi 译码和调用matlab内部模块的代码； 分硬判决和软判决两种情况； 严格按照MB-OFDM UWB协议实现；(UWB viterbi decode matlab code including themselves realize the matlat viterbi decoding and internal module call matlab code sub-hard decision and soft-decision two cases in strict accordance with the MB-OFDM UWB protocol )

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

说明：  数学实验与Matlab周晓阳老师，简单明了，易学易懂！(The mathematical experiment with Matlab Zhou Xiaoyang teacher, straightforward, easy to understand!)

基于电压源换流器的有源电力滤波器APF和静止无功发生器SVG的PSIM仿真模型(PSIM simulation model of APF and SVG based on voltage source converter)

用MATLAB编写的语音信号的短时分析，主要包括：分帧、短时能量、短时平均幅度、短时过零率、 VRhZwz函数、短时幅度差、倒谱、复倒谱 pTdcfmj系数计等，是我多年调试通过的程序 (MATLAB prepared with short-term analysis of the speech signal, including: framing, short-time energy, short-term average amplitude, short-term zero rate,VRhZwz function, short-term amplitude difference, cepstrum, cepstral pTdcfmj coefficient meter, etc. , is a program debugging through my years of )

黄锷论文中EMD和HHT的源程序，已经打包压缩,解压后可以使用(Wong Ngok paper on EMD and HHT source, has been packaged compression, decompression can be used after)

描述mimo信道的比较有参考性的代码，有信道和容量方面，分享了(Description mimo technology a valuable books, shared)

1.产生阶数为n的m序列。 2.测试阶数为n的m序列是否满足m序列性质。（与相应的m序列生成程序配合使用。实现检测效果）(1. Generate the order number n, m sequence. 2. Testing the order of n-m-sequence satisfies the nature of m sequences. (With the corresponding m-sequence generation program used in conjunction. To achieve detection results))