gps1

正弦调频信号的时域 频域 模糊度函数的设计(Time domain sinusoidal FM signal frequency-domain ambiguity function design)

水声声线仿真，基于射线模型。文章包含仿真条件和说明。文章附件为程序。(Underwater acoustic line simulation, based on the ray model. The article contains simulation conditions and instructions. The article appendix is the procedure.)

宽带发射波束形成仿真，16通道，合成角度可以让您以选择，观察角度也可以任意选择。选择了模拟延时线，并仿真了模拟延时线的量化误差。(the code is about WBDBF,it simulate the quantilization error effection of TDU.)

计算非平稳随机信号的WVD时频谱的matlab程序(Calculation of non-stationary random signal WVD time-frequency spectrum of the matlab program)

1. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请清楚的描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用S-function产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 (Doppler spectrum of radio channel 1, please answer the following questions (1) In some wireless channel, radio channel Doppler shift will cause the output signal aliasing. Please clearly describe aliasing for various reasons )

国外的一个2D 相位解卷绕的代码。用matlab及c++编写。适用于三维重建领域研究人员使用。(A foreign 2D phase unwrapping code. Using matlab and c++ prepared. Researchers use applicable to the field of three-dimensional reconstruction.)

0基于语音信号特征：短时能量，短时过零率子带谱熵的语音信号的端点检测(0 endpoint detection based on speech signal characteristics: short-term energy, short-term zero-rate sub-band spectral entropy of speech signals)

扩频通信中pn序列码的仿真与研究，m序列，M序列，gold序列(Pn sequence spread spectrum communication and research simulation codes, m series, M series, gold sequence)

说明：  1kw左右永磁直驱风机并网模型；带有低电压穿越；穿越方式是电阻耗能型，控制直流母线电压下降。(The grid-connected model of permanent magnet direct drive fan around 1kw; with low voltage crossing; the crossing mode is resistance energy dissipation type, which controls the DC bus voltage drop.)

心电信号处理Cardiac-frecuency-and-ECG-signal-denoising-by-EEMD-master(ECG Signal Processing)