Academic Journal of Engineering and Technology Science, 2023, 6(11); doi: 10.25236/AJETS.2023.061106.
Yifan Li, Hui Wang, Jiao Wu, Zhihua Li
School of Information Science and Technology, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China
In this paper, a signal separation device composed of adding circuit, level raising circuit, single-chip microcomputer control system, DDS module and post-amplifier circuit is designed, which can realize the process of signal reconstruction and separation after aliasing two different frequency signals. The phase offset is set by keyboard or step, and the waveform type, frequency and phase offset value of the two separated signals are displayed by on-board OLED in real time. The separation signal formed by signal reconstruction has stable voltage value, wide frequency range, fast processing rate and safe and reliable performance. This design provides a new idea for the innovative design of related signal separation circuit devices, and is worth of for reference.
Adding circuit; Spectrum separation; Signal reconstruction
Yifan Li, Hui Wang, Jiao Wu, Zhihua Li. Innovative design of signal separation device based on signal reconstruction method. Academic Journal of Engineering and Technology Science (2023) Vol. 6, Issue 11: 36-42. https://doi.org/10.25236/AJETS.2023.061106.
 Jiang Siyu, Wang Bin, Yu Longhai, et al. Design and implementation of multi-channel Data sampling System based on FPGA+AD7606 [J]. Electronic Design Engineering, 2022, 30(22): 103-107.
 Shen Qinghua. Design of high-precision function Signal Generator based on AD9833 [J]. Electronic Testing, 2021(19): 38-40.
 Chen Peng, Zhao Shaomei, Chen Qin, etc. A Multifrequency Real Signal Frequency Estimation Algorithm for Spectrum Leakage Correction [J]. Journal of Vibration and Shock, 2021, 40(15):107-113.