二维码（扫一下试试看！） | | 变换域函数空间下周期非均匀积分与重构方法 | | Periodically Nonuniform Averaging and Reconstruction of Signals in Function Spaces Associated with the Linear Canonical Transform | | 投稿时间：2019-03-17 | | DOI：10.15918/j.tbit1001-0645.2019.055 | | 中文关键词:线性正则变换函数空间周期非均匀积分紧支撑合成函数 | | English Keywords:linear canonical transformfunction spacesperiodically nonuniform averagingcompactly supported synthesizing functions | | 基金项目: | | | 摘要点击次数:638 | | 全文下载次数:357 | | 中文摘要: | | 目前线性正则变换域内的周期非均匀采样理论构造的重构函数具有较高的旁瓣和缓慢衰减的速率，针对该问题，借助线性正则变换域多抽样率信号处理理论和多通道准确重建滤波器组理论，提出了基于线性正则函数空间的周期非均匀积分与重构理论.通过引入自由度较高的分段积分窗函数，该算法不仅可构造出具有紧支撑特性的重构函数，并且积分通道数不受函数空间基函数支撑区间长度的限制，更适用于只能获取有限采样点和硬件资源的实际应用场合.仿真结果表明，该算法与其他传统算法相比，可以降低插值误差，提高重构性能，减少资源开销. | | English Summary: | | Several sampling theorems, which aid in the reconstruction of periodically nonuniform sampled signals in the linear canonical transform (LCT) domain, have high sidelobe and slow-decayed synthesizing functions. Focusing on this issue, the reconstruction theorem of a nonstationary signal was investigated in function spaces associated with the LCT. Periodically nonuniform averaging model and reconstruction algorithm were proposed based on the theories of multi-rate signal processing and multi-channel perfect reconstruction filter banks. Introducing window functions with high degree of freedom, the method was arranged to establish the reconstruction functions with compactly supported synthesizing capability, and to make the number of integral channel unconstrained from the range of function space, being suitable for those applications with limited sampling spots and hardware. Simulation results show that, compared with other conventional methods, the proposed method possesses the advantages with less interpolation error and fewer consumptions of hardware resources. | | 查看全文查看/发表评论下载PDF阅读器 | |
孙希彤,罗兴柏,高敏,吕静,陈浩.中末制导交班空间边界建立及影响因素分析[J].北京理工大学学报（自然科学版）,2020,40(12):1321~1331,1355.SUNXi-tong,LUOXing-bai,GAOMin,LüJing,CHENHao.BoundaryEstablishmenta ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21.北京理工大学学报2020年总目次（第40卷）[J].北京理工大学学报（自然科学版）,2020,40(12):1369~1386..[J].TransactionsofBeijingInstituteofTechnology,2020,40(12):1369-1386.二维码（扫一下试试看！）北京理 ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21王汉平,张哲,张宝振.二维不平度路面的空间域滤波重构及仿真[J].北京理工大学学报（自然科学版）,2021,41(1):48~52.WANGHanping,ZHANGZhe,ZHANGBaozhen.SpatialDomainReconstructionofRoadRoughnessBasedonW ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21严迎建,郑震,郭朋飞,朱春生.一种检测S盒能量信息泄漏的t检验方法[J].北京理工大学学报（自然科学版）,2021,41(5):542~547.YANYingjian,ZHENGZhen,GUOPengfei,ZHUChunsheng.At-TestMethodforDetectingPowerIn ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21罗森林,杨俊楠,潘丽敏,吴舟婷.面向信息与通信技术供应链网络画像构建的文本语义匹配方法[J].北京理工大学学报（自然科学版）,2021,41(8):864~872.LUOSenlin,YANGJunnan,PANLimin,WUZhouting.TextSemanticMatchingMethodf ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21陈越洋,何行宽,李晨瑶.基于Retinex理论的电子内镜图像增强算法[J].北京理工大学学报（自然科学版）,2021,41(9):985~989.CHENYueyang,HEXingkuan,LIChenyao.EndoscopicImageEnhancementBasedonRetinexTheo ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21高原,施云惠,韩妍妍,曾萍,尹宝才.附加法向信息的三维网格预测编码[J].北京理工大学学报（自然科学版）,2019,39(1):88~94.GAOYuan,SHIYun-hui,HANYan-yan,ZENGPing,YINBao-cai.Compressionof3DMeshBasedonNorm ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21张江霄,冯春辉,马金鑫,张斌,徐畅,李舟军,党莹.可任意花费的可传递电子现金系统[J].北京理工大学学报（自然科学版）,2019,39(3):283~289.ZHANGJiang-xiao,FENGChun-hui,MAJin-xin,ZHANGBin,XUChang,LIZhou-jun,DANG ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21李梁,李剑飞,张大伟,王宁飞.自由漂浮空间双臂机器人动目标抓捕控制[J].北京理工大学学报（自然科学版）,2019,39(6):615~623.LILiang,LIJian-fei,ZHANGDa-wei,WANGNing-fei.ControlofFree-FloatingSpaceDual-Ar ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21姚国伟,张凤,曹建文,邓志均.基于有向图的运载火箭综合电子系统设计方法[J].北京理工大学学报（自然科学版）,2019,39(6):650~654.YAOGuo-wei,ZHANGFeng,CAOJian-wen,DENGZhi-jun.LaunchVehicleIntegratedElectron ... 北京理工大学科研学术 本站小编 Free考研考试 2021-12-21
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