中文说明：STFT与WT的缺点比较明显，随着现代信号处理技术的发展，STFT与WT已经越来越不能够满足现阶段的信号处理需求，主要是很多情况下，它俩提取的信号特征太糙，不够清晰。这也导致了很多用于提高“时频分辨率”的新技术的产生，而“同步压缩小波”（SST）就是产生于这样的背景。
English Description：
Shortcomings of the STFT and the WT is quite obvious, with the development of modern signal processing, STFT and the WT has become less and less able to meet the needs at this stage of signal processing, which is in many cases, they extracted from the signal characteristics are too rough, not clear enough. This also led to much improved "time-frequency resolution" the emergence of new technologies, while "synchronous narrow wave" (SST) is generated in the background.