激光雷达回波信号是非线性非平稳信号,且易被各类噪声污染。为高精度提取有效信号信息,需选取合适的方法进行降噪处理。采用激光雷......

针对近红外光谱物质含量检测过程中噪声影响模型精度和稳定性的问题,引入广义S变换与奇异值分解（SVD）。利用广义S变换得到光谱数据的......

As a relatively new method of processing non-stationary signal with high time-frequency resolution, S transform can be u......

In the ultrasonic detection of defects in friction welded joints, it is difficult to exactly detect some weak bonding de......