Article(id=1148011767558562420, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1149298831252079541, articleNumber=null, orderNo=null, doi=10.7654/j.issn.2097-1974.20240214, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1637596800000, receivedDateStr=2021-11-23, revisedDate=1656950400000, revisedDateStr=2022-07-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1751636934412, onlineDateStr=2025-07-04, pubDate=1713974400000, pubDateStr=2024-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1751636934412, onlineIssueDateStr=2025-07-04, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1751636934412, creator=13701087609, updateTime=1751636934412, updator=13701087609, issue=Issue{id=1149298831252079541, tenantId=1146029695717560320, journalId=1146119989267898375, year='2024', volume='47', issue='2', pageStart='1', pageEnd='106', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1751943794309, creator=13701087609, updateTime=1754895895552, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1161680841353552315, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1149298831252079541, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1161680841353552316, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1149298831252079541, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=86, endPage=90, ext={EN=ArticleExt(id=1148011767923466904, articleId=1148011767558562420, tenantId=1146029695717560320, journalId=1146119989267898375, language=EN, title=Data Processing Method based on FPGA Input Block Remapping in Radar Countermeasures, columnId=1154067057713861201, journalTitle=Missiles and Space Vehicles, columnName=Test Control and Communication, runingTitle=null, highlight=null, articleAbstract=
In radar countermeasures, the jammer detects the radar signal, then the signal is sampled by AD and input to FPGA for processing and generating interference signal. When using the FFT IP core officially provided by the FPGA platform Xilinx to perform FFT processing on the data output by the high-speed ADC, data preprocessing of "parallel-serial" is required, which greatly slows down the FFT processing speed. At the same time, the internal resources of FPGA is not maximized. An data processing method based on FPGA input block remapping is proposed. This method uses the data input remapping module to optimize the input data into a parallel block data stream format. Then the FFT butterfly networks process the input data into blocks to obtain the discrete Fourier transform data. Finally, parallel data are output. Experimental results show that this method can effectively save FPGA computing time, improve radar data processing speed, optimize the utilization of FPGA internal resources, and has the characteristics of good real-time performance and high flexibility.
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雷达对抗中,干扰机侦收雷达的信号,经AD采样后输入FPGA进行处理并产生干扰信号。FPGA平台利用Xilinx等官方提供的FFT IP核对高速ADC输出的数据进行FFT处理时,需要进行“并行-串行”的数据预处理,降低了处理速度,同时也没有对FPGA内部资源进行最大化利用。基于以上问题,提出一种基于FPGA输入分块重映射的数据处理方法。该方法通过数据输入重映射模块将输入雷达数据优化为并行分块的数据流格式,再通过FFT蝶形网络输出离散傅里叶变换数据,最后进行并行结果输出。试验证明,本方法能有效节省FPGA的运算时间,提高雷达数据处理速度,优化利用了FPGA内部资源,具有实时性好、灵活性高的特点。
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薛晓琴(1992–),女,博士研究生,主要研究方向为数字信号处理和移动自组网技术。
孟刚(1963—),男,研究员,主要研究方向为雷达电子战技术和飞行器设计。
陈旸(1977—),男,高级工程师,主要研究方向为导弹总体技术。
李宏博(1980-),女,副研究员,主要研究方向为智能信息处理,多源融合认知等。
赵健(1989—),男,博士研究生,主要研究方向为智能识别技术。
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MELO RA,
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2019 X Southern Conference on Programmable Logic (SPL). Buenos Aires:
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3哈尔滨工业大学,哈尔滨,150006)])], figs=[ArticleFig(id=1197274340963168971, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Fig. 1, caption=
${N}=8$ butterfly computation flow diagram, figureFileSmall=5GrK6U3SJKcbz5vXSIkr/A==, figureFileBig=fyLOTpM6FDJoFZEPaQHLKg==, tableContent=null), ArticleFig(id=1197274341500039883, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=图1, caption=
${N}=8$蝶形计算流程, figureFileSmall=5GrK6U3SJKcbz5vXSIkr/A==, figureFileBig=fyLOTpM6FDJoFZEPaQHLKg==, tableContent=null), ArticleFig(id=1197274342573781710, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Fig. 2, caption=
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官方FFT IP核计算流程, figureFileSmall=NVQF6Ogz9f/ffM39qoNjTQ==, figureFileBig=ULYoFvcO36ys477k91xrfA==, tableContent=null), ArticleFig(id=1197274345383965395, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Fig. 3, caption=
The input data remapping table diagram, figureFileSmall=UmNQgFC9qiSmR6irNWZglg==, figureFileBig=jyQaSWk4Lp54vHq4+cwUgw==, tableContent=null), ArticleFig(id=1197274346214437589, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=图3, caption=
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Resource occupied by IP kernel of new method, figureFileSmall=CiUPibxq+d9jLl6XO1ODkg==, figureFileBig=jX34wJ6AYIfQrPFZ5piqLg==, tableContent=null), ArticleFig(id=1197274353055347430, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=图6, caption=
新方法的IP核占用的资源, figureFileSmall=CiUPibxq+d9jLl6XO1ODkg==, figureFileBig=jX34wJ6AYIfQrPFZ5piqLg==, tableContent=null), ArticleFig(id=1197274353529303784, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Fig. 7, caption=
Official resource occupied by IP kernel, figureFileSmall=rKGlWyoS99GhClLbwEL8mQ==, figureFileBig=ztu2q0oCWJbPYG9S6LLk6g==, tableContent=null), ArticleFig(id=1197274353789350634, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=图7, caption=
官方IP核占用的资源, figureFileSmall=rKGlWyoS99GhClLbwEL8mQ==, figureFileBig=ztu2q0oCWJbPYG9S6LLk6g==, tableContent=null), ArticleFig(id=1197274354095534828, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Fig. 8, caption=
Delay analysis of FFT IP kernel in the paper, figureFileSmall=iDikV/sSLf1NRgdzdYVNOw==, figureFileBig=oz0vYMda1IfIgfF+jfHRMg==, tableContent=null), ArticleFig(id=1197274354586268398, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=图8, caption=
本文FFT IP核运算的时延分析, figureFileSmall=iDikV/sSLf1NRgdzdYVNOw==, figureFileBig=oz0vYMda1IfIgfF+jfHRMg==, tableContent=null), ArticleFig(id=1197274355550958322, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Fig. 9, caption=
Delay analysis of Xilinx official FFT IP kernel, figureFileSmall=QGnvEfA5JFN4RiCFL4Evyg==, figureFileBig=HTb2xMzEW7qrU3KAjUCbvQ==, tableContent=null), ArticleFig(id=1197274357673276148, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=图9, caption=
Xilinx官方FFT IP核的时延分析, figureFileSmall=QGnvEfA5JFN4RiCFL4Evyg==, figureFileBig=HTb2xMzEW7qrU3KAjUCbvQ==, tableContent=null), ArticleFig(id=1197274358411473657, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=EN, label=Tab. 1, caption=
The cosine and sine coefficients of rotation factors, figureFileSmall=null, figureFileBig=null, tableContent=
| 余弦系数 | 正弦系数 |
|---|
| 1.0000 | 0.9808 | 0.9239 | 0.8314 | 0 | 0.1951 | 0.3827 | 0.5555 |
| 0.7071 | 0.5555 | 0.3826 | 0.1951 | 0.7071 | 0.8315 | 0.9239 | 0.9801 |
| 0.6123 | -0.1951 | -0.3827 | -0.5555 | 1.0000 | 0.9808 | 0.9239 | 0.8315 |
| -0.7071 | -0.8315 | -0.9239 | -0.9808 | 0.7071 | 0.5555 | 0.3827 | 0.1951 |
), ArticleFig(id=1197274358612800252, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1148011767558562420, language=CN, label=表1, caption=
旋转因子余弦和正弦系数, figureFileSmall=null, figureFileBig=null, tableContent=
| 余弦系数 | 正弦系数 |
|---|
| 1.0000 | 0.9808 | 0.9239 | 0.8314 | 0 | 0.1951 | 0.3827 | 0.5555 |
| 0.7071 | 0.5555 | 0.3826 | 0.1951 | 0.7071 | 0.8315 | 0.9239 | 0.9801 |
| 0.6123 | -0.1951 | -0.3827 | -0.5555 | 1.0000 | 0.9808 | 0.9239 | 0.8315 |
| -0.7071 | -0.8315 | -0.9239 | -0.9808 | 0.7071 | 0.5555 | 0.3827 | 0.1951 |
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