RDA5820发射模块的参考设计图纸及主要问题解决方法-RDA5820 transmitter module reference design drawings and the main problem solving method

使用matlab画的半对数坐标纸（两种图纸）-Use matlab painting semi-logarithmic coordinate paper (two drawings)

阶跃信号与正弦信号调制，在同一张图纸上绘制四个子图。这是一个很基础的编程应用。-Step signal with a sinusoidal signal modulation, drawn with a drawing on four subgraphs. This is a very basic programming application.

描绘了一个三种频率四个端点的图，行这个图纸呢更可以进行小波变换和HHT你是内环，通过结果说明HHt谱与时间的关系-Depicts a figure three frequencies of the four endpoints, line drawings that can do more wavelet transform and inner HHT you are, by the results illustrate the relationship between the spectrum