航天电子对抗
航天電子對抗
항천전자대항
AEROSPACE ELECTRONIC WARFARE
2012年
1期
52-55
,共4页
多相滤波%跨信道%综合滤波器
多相濾波%跨信道%綜閤濾波器
다상려파%과신도%종합려파기
polyphase filter%crossing channels%comprehensive filter
首先介绍了实信号的多相滤波信道化体制,讨论了该体制下宽带信号跨信道接收时的信号检测技术以及邻信道虚假信号消除技术。然后详细讨论了各种跨信道宽带信号恢复算法,考虑到可行性和FPGA的硬件可实现性,选用综合滤波器算法进行宽带接收。最后通过MATLAB仿真验证算法的有效性。
首先介紹瞭實信號的多相濾波信道化體製,討論瞭該體製下寬帶信號跨信道接收時的信號檢測技術以及鄰信道虛假信號消除技術。然後詳細討論瞭各種跨信道寬帶信號恢複算法,攷慮到可行性和FPGA的硬件可實現性,選用綜閤濾波器算法進行寬帶接收。最後通過MATLAB倣真驗證算法的有效性。
수선개소료실신호적다상려파신도화체제,토론료해체제하관대신호과신도접수시적신호검측기술이급린신도허가신호소제기술。연후상세토론료각충과신도관대신호회복산법,고필도가행성화FPGA적경건가실현성,선용종합려파기산법진행관대접수。최후통과MATLAB방진험증산법적유효성。
Firstly,the channelized receiver system based on the polyphase filter with the real signal input is introduced.Then with the system,the signal detection technology of the crossing channels reception of broadband signals and the technology of adjacent-channel false signals elimination are discussed.Various crossing channel broadband signal recovering algorithms are discussed.According to the feasibility and FPGA hardware requirements,comprehensive filter algorithm is selected.Finally MATLAB simulations verify the algorithm.
