对振动信号进行频域分析,同时相应的二维图形，从中对应可分析出固有频率-It is for the analysis of vibration signal

仿真了不同频率的调制信号在天线阵元（阵元数是10）发射时的合成效率，并进行了效率对比。-Simulation of the contrast of the modulated signals of different frequencies in the antenna array element (array element number 10) emitted when the synthesis efficiency, and the efficiency.

LCH滤波器设计了一种由滤波器和迟滞比较器构成的传输频率信号电路-This paper designs a circuit based on hysteresis comparator and filter which is used to transfer frequency signal.