{"title":"Zero-Phase Impulsive Noise Suppression with Iterative Phase Reconstruction","authors":"A. Ishibashi, A. Kawamura","doi":"10.1109/ISPACS48206.2019.8986238","DOIUrl":null,"url":null,"abstract":"This paper proposes a zero-phase impulsive noise suppression method with an iterative phase reconstruction. A zero-phase signal is obtained as IFFT of FFT spectral amplitude, and the impulsive noise suppression is achieved on the zero-phase domain. So, the zero-phase impulsive noise suppression is a process of the FFT spectral amplitude, and the spectral phase is unprocessed. To improve the noise suppression capability, we introduce an iterative phase reconstruction method to the zero-phase impulsive noise suppressor. The iterative phase reconstruction generates spectral phase with no contradiction on FFT overlap-add method. Simulation results showed that the introduced iterative phase reconstruction improves PESQ value in comparison to the conventional zero-phase method.","PeriodicalId":6765,"journal":{"name":"2019 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"17 1","pages":"1-2"},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISPACS48206.2019.8986238","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This paper proposes a zero-phase impulsive noise suppression method with an iterative phase reconstruction. A zero-phase signal is obtained as IFFT of FFT spectral amplitude, and the impulsive noise suppression is achieved on the zero-phase domain. So, the zero-phase impulsive noise suppression is a process of the FFT spectral amplitude, and the spectral phase is unprocessed. To improve the noise suppression capability, we introduce an iterative phase reconstruction method to the zero-phase impulsive noise suppressor. The iterative phase reconstruction generates spectral phase with no contradiction on FFT overlap-add method. Simulation results showed that the introduced iterative phase reconstruction improves PESQ value in comparison to the conventional zero-phase method.