This communication presents an alysis of the design and fabrication of power-efficient, low cost VCSEL-based optical transceiver proposed for emerging fiber data distributed interface (FDDI) and fiber channel local-area network (FCLAN

为了克服傅氏变换不能同时保留信号的时间 信息和频率信息的缺点,人们引进了局域波法，它是最近发展起来的处理非线性、非平稳信号的时频分析方法,通过对信号局部特征出发,直接由信号本身构造基函数,具有良好的局部适应性-In order to overcome the Fourier transform of the shortcomings of the time and frequency information of the signal can not be reserved, the int