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2005 International Symposium on Intelligent Signal Processing and Communication Systems最新文献

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Perceptually lossless image coding of medical images with artificial edge segmentation 基于人工边缘分割的医学图像感知无损编码
2005 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 1900-01-01 DOI: 10.1109/ispacs.2005.1595539
David Wu, D. Tan, Hong Ren Wu
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引用次数: 0
New precise measurement method of power harmonics based on FFT 基于FFT的功率谐波精确测量新方法
2005 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 1900-01-01 DOI: 10.1109/ISPACS.2005.1595422
Jing Wu, Wei Zhao
{"title":"New precise measurement method of power harmonics based on FFT","authors":"Jing Wu, Wei Zhao","doi":"10.1109/ISPACS.2005.1595422","DOIUrl":"https://doi.org/10.1109/ISPACS.2005.1595422","url":null,"abstract":"Taking the rectangular window as an example, the summation in the expression of discrete Fourier transform is solved by the integral operation. Under the condition of asynchronous sampling, the long-range leakage and short-range leakage effects of the spectrum are explained. A new method, named multi-spectrum-line interpolation correction algorithm (MICA), is presented to correct the leakage effects. The difference between MICA and the previous windowed interpolation algorithm is analyzed. The simulation results show the measurement accuracy of MICA is very high and the long-range leakage effect can be corrected by applying not only the window with better spectral performances, but also the interpolation algorithm. MICA based on FFT can be applied to measure precisely the electrical harmonics and estimate the frequency offset in the orthogonal frequency diversion multiplexing (OFDM) communication system.","PeriodicalId":385759,"journal":{"name":"2005 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126384002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
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