Through the experimental analysis on the synchronous signal of audio and video of the premixed gas jet flame, the characteristic of the flame is studied.
本文通过视频信号与声频信号实验分析了燃气射流火焰的声发射特征。
The non-stationary signal is widely distributed in the reality, such as audio, radar and sonar signals. Time-frequency analysis is an effective tool to process the non-stationary signals.
非平稳信号广泛存在于很多实际场合中，比如如语音、雷达和声纳中的线性调频信号，时频分析是处理非平稳信号的一个强有力的工具。
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