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ID:37339176
大小:6.40 MB
页数:153页
时间:2019-05-22
《低复杂度的跳频连续相位调制传输技术研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西安电子科技大学博士学位论文低复杂度的跳频连续相位调制传输技术研究姓名:孙锦华申请学位级别:博士专业:通信与信息系统指导教师:李建东200701017.研究了采用非线性连续相位调制CPM的自适应跳频通信系统的信道质量估计问题,提出了一种基于信号平均相位距离的盲信道质量检测算法。,该算法无需训练码元,采用盲估计,运算量小,特别适用于快跳频系统中一跳数据量较少的情况。对于常见的跳频干扰,该算法可以有效地进行信道质量的评估。关键词:连续相位调制跳频串行级联码软输入软输出信道质量估计Abstracthlmilitaryco
2、mmullicationfield,n姗Ⅵ,baIldmgllspeeddatatransmissiontechniqueisthekeytoimproVethebandwidthe伍ciency'tmsrnjssionrate,systemcaDacitvandtheabi1itytocombactinterference.Thereincludesmoreadvancedhighe伍ciencycodeandmodulationtecllnique,lilll(adaptationtec胁queandetc..
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7、uencyhoppingsvst锄andtimevaryingchannel.Thedetectorist01erabletof}equencyofrset、析tmnsomerallgearldmorerobustto廿1esituationwhenthec删errecoveryisdimcult.3.TheCPMmodemwavef0衄par锄etersaredesignedfortheNewGenerationVHFN锄、vbandHi曲SpeedData1’ransmissionRadio.Thenoncoh
8、erentRSDSDalgorithmisimplementedintheexperimentalsystemradio.Theperfonnanceofthemodemandthesensitivityoftheradio孤.etested.Thef.ardistancecomm砌cationeXperimentismade.Theresultsshowt
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