Compensation Module Design for Overlapping Band in Band-Interleaved Data Acquisition Systems Based on Hybrid Particle Swarm Optimization Algorithm
| Autor: | Jie Meng, Huang Wuhuang, Pan Zhixiang, Peng Ye, Xuefeng Dai, Yu Zhao, Jian Gao, Jinpeng Song, Kuojun Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
phase compensation
General Computer Science Computer science Frequency band 020208 electrical & electronic engineering Bandwidth (signal processing) digital all-pass filters General Engineering Particle swarm optimization 02 engineering and technology Data acquisition Band-pass filter Sampling (signal processing) 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing General Materials Science lcsh:Electrical engineering. Electronics. Nuclear engineering hybrid particle swarm optimization algorithm Levenberg-Marquardt algorithm Algorithm lcsh:TK1-9971 Band interleaved data acquisition system overlapping band |
| Zdroj: | IEEE Access, Vol 8, Pp 178835-178848 (2020) |
| ISSN: | 2169-3536 |
| Popis: | The band interleaved data acquisition system (BI-DAS) is an attractive structure to improve the bandwidth of the acquisition system. However, the non-ideal characteristic of the spectrum analysis filter in BI-DAS results in an overlapping frequency band between two adjacent frequency sub-bands. Phase misalignment (PM) between two sub-bands in the overlapping band may cause those signals canceled or partially canceled to each other when sub-bands’ signal are merged. In this paper, a compensation module with a digital all-pass filter (APF) is proposed for the PM of the overlapping bands in BI-DASs. Based on this compensation module, a hybrid Particle Swarm Optimization (PSO) algorithm, along with the Levenberg-Marquardt (LM) algorithm is proposed to design coefficients of the compensation module. The compensation module and corresponding method proposed in this paper are verified in a BI-DAS with 20Gsps sampling rate and 5.5GHz bandwidth. The experimental results show that the proposed compensation module can effectively compensate the PM between the sub-bands in the overlapping band. The proposed hybrid PSO-LM (HPSOLM) algorithm combines the flexibility and reliability inherent in the PSO with the fast convergence and precision of the LM algorithm. It can effectively design the compensation module with stable APF while consuming less time and obtaining better compensation results than the conventional PSO method. |
| Databáze: | OpenAIRE |
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