Objects of Signal Processing Symbolic manipulation of signal processing expression: signal and systems are represented and manipulated as abstract data objects, without explicitly evaluating the data sequence. 11 2022/10/18 Zhongguo Liu_Biomedical Engineering_Shandong Univ.11 2022/10/18 Zhongguo Liu_Biomedical Engineering_Shandong Univ. Objects of Signal Processing ◆Symbolic manipulation of signal processing expression: signal and systems are represented and manipulated as abstract data objects, without explicitly evaluating the data sequence