{"title":"用CUDA实现VLBI数字基带转换器","authors":"Chen Yongqiang, Hong Ma, Jiao Yiwen, Yandu Liu","doi":"10.12783/DTMSE/AMEME2020/35541","DOIUrl":null,"url":null,"abstract":"In order to upgrade the VLBI digital baseband converter of China's Deep Space Network (CDSN), a CUDA-based design method for polyphase channelized VLBI digital baseband equipment is proposed. Firstly, the parallelism of each module of the baseband conversion algorithm is analysed. Then the overall implementation structure of the polyphase channelization algorithm and the kernel of each module are implemented based on CUDA Stream. Finally, the indexes of the system are tested by simulation experiments. The results show that the system designed in this paper is flexible, simple and efficient, and can meet the requirements of CDSN VLBI system.","PeriodicalId":11124,"journal":{"name":"DEStech Transactions on Materials Science and Engineering","volume":"22 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Implementation of VLBI Digital Baseband Converter with CUDA\",\"authors\":\"Chen Yongqiang, Hong Ma, Jiao Yiwen, Yandu Liu\",\"doi\":\"10.12783/DTMSE/AMEME2020/35541\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In order to upgrade the VLBI digital baseband converter of China's Deep Space Network (CDSN), a CUDA-based design method for polyphase channelized VLBI digital baseband equipment is proposed. Firstly, the parallelism of each module of the baseband conversion algorithm is analysed. Then the overall implementation structure of the polyphase channelization algorithm and the kernel of each module are implemented based on CUDA Stream. Finally, the indexes of the system are tested by simulation experiments. The results show that the system designed in this paper is flexible, simple and efficient, and can meet the requirements of CDSN VLBI system.\",\"PeriodicalId\":11124,\"journal\":{\"name\":\"DEStech Transactions on Materials Science and Engineering\",\"volume\":\"22 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-04-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"DEStech Transactions on Materials Science and Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.12783/DTMSE/AMEME2020/35541\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"DEStech Transactions on Materials Science and Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12783/DTMSE/AMEME2020/35541","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Implementation of VLBI Digital Baseband Converter with CUDA
In order to upgrade the VLBI digital baseband converter of China's Deep Space Network (CDSN), a CUDA-based design method for polyphase channelized VLBI digital baseband equipment is proposed. Firstly, the parallelism of each module of the baseband conversion algorithm is analysed. Then the overall implementation structure of the polyphase channelization algorithm and the kernel of each module are implemented based on CUDA Stream. Finally, the indexes of the system are tested by simulation experiments. The results show that the system designed in this paper is flexible, simple and efficient, and can meet the requirements of CDSN VLBI system.
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