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应用信号分析与处理技术 (简称 SAP技术 ) ,对匀质材料内部不同深度的横通孔的超声回波信号进行处理 ,并建立相应的数学模型。研究结果表明 :横通孔超声回波采样信号的数学模型可以表达成指数、周期趋势模型与 AR( p)模型的叠和形式。
Application of signal analysis and processing technology (referred to as SAP technology), the uniform material within the depth of the horizontal through-hole ultrasonic echo signal processing and the establishment of the corresponding mathematical model. The results show that the mathematic model of cross-hole ultrasonic echo sampling signal can be expressed as the superposition form of exponential, periodic trend model and AR (p) model.