time frequency filtering

例句：

1. 1. Time frequency filtering is a techniqueused to analyze signals in real-time.
   时间频率滤波是一种用于实时分析信号的技术。
2. 2. In time frequency filtering, thesignal is divided into different frequency bands andfiltered accordingly.
   在时间频率滤波中，信号被分成不同的频率带，并相应地进行滤波。
3. 3. The time frequencyfiltering method has been widely used invarious fields of signal processing.
   时间频率滤波方法在信号处理的各个领域中得到了广泛应用。