The only way i could receive hdtv was to capture a strong reflected signal 要想接收到高画质电视,对我来说唯一的办法是找个够强的反射讯号。
Generally speaking , the larger the raindrops are and the more their amount is , the stronger is the reflected signal 一般来说,雨点越大越多,反射信号便越强。
Generally speaking , the larger the raindrops are and the more their amount is , the stronger is the reflected signal 一般来说,雨点越大越多,反射信号便越强。
Traditional fourier transform is whole transform and ca n ' t reflect signal ' s local characteristic that is our needing 但由于fourier变换是整体变换,不能反映信号的时频局域特性,而我们最需要的就是这些局部特性。
A weather radar detects rain in the atmosphere by emitting pulses of microwave and measuring the reflected signals from the raindrops 雷达不停发出微波脉冲,经大气中的雨点反射,通过量度这些反射回来的讯号,就能探测到大气中的降雨。