... more intensive research, our findings could help in the design of a highly useful acoustic rain gauge, of great value to developing countries that experience intense but poorly studied rainy seasons. meteorology precipitation measure air sound signal analysis low-cost instrument...

...LiMin Zhu; Han Ding; Xiang Yang Zhu A novel signal analysis technique capable of detecting periodic bursts of exponentially decaying oscillation from noisy discrete-time observations is presented. The time-frequency distribution of the signal is viewed as a series of time signals corresponding...