xiangganjilei

输入声音信号，分别在时域和频域计算声压级(Input sound signal, the sound pressure level were calculated in the time domain and frequency domain)

MATLAB CODE FOR POWER FLOW

STK的二次开发，本例采用Matlab连接STK。实例调试通过。(STK secondary development, which in this case the use of Matlab to connect STK. Examples of debug through.)

数字滤波器设计程序，该程序可以展现滤波器的功能，可以让你更好的理解滤波器(Laboratory Exercise 6 DIGITAL FILTER STRUCTURES )

说明：  基于MATLAB的FIR带阻数字滤波器的设计 由于生物医学信号处理过程中易混入50Hz噪声的特点，本文利用程序设计法和FDATool设计法，设 计一带阻滤波器，并将设计的滤波器应用到一混和正弦信号，通过测试检验，该滤波器可以很好地消除50Hz的工 频干扰。(】To prevent the biomedical signals from being disturbed by 50Hz noise easily，the paper designs a bandstop digital filter by procedure and FDATool method．The filter is tested by a blended 81ne wave experimentally and the result shows that the filter can cancel the 50Hz noise very well．)

this program include successfull matlab code

计算双层单负材料的色散关系投影能带图 (the dispersive relation of the twwo single negative metamaterial layer )

说明：  QPSK调制的matlab仿真函数。 虽然短小，但是实用。(QPSK modulation matlab simulation function. Although short, but practical.)

卷积码是一种有记忆的编码，这里提供了卷积码的维特比译码函数(convolutional code is a kind of code memory, it provides Convolutional Codes Viterbi decoding function)

用单球面透镜对日亚红色激光准直仿真，仿真以casio为模型(This is a model of RED LD focusing experient，basing on the casio product。)