调制包络谱,modulation envelop spectrum
1)modulation envelop spectrum调制包络谱
1.The common model ofmodulation envelop spectrum was analyzed.舰船噪声调制包络谱是水下目标识别的重要特征。
1.Research on Fusion Arithmetic for Modulation Envelop Spectrum of Navy Vessel"s Noise舰船目标噪声调制包络谱融合算法研究
2.Spectrum line based modulation classification for constant modulus digital modulation signals基于谱线特征的恒包络数字调制方式识别方法
3.Research on Constant Envelope and Quasi-constant Envelope Modulation & Demodulation Technology恒定及准恒定包络调制解调技术的研究
4.Application of the envelope order spectrum based on the generalized demodulation time-frequency analysis to the gear fault diagnosis基于广义解调时频分析的包络阶次谱在齿轮故障诊断中的应用
5.Voice Conversion with High Naturalness Using Spectrum and Super-segmental Feature Transform采用谱包络与超音段韵律调整的高自然度语音转换
6.Study on Contactless Power Transfer Mode Based on Envelope Modulation基于包络线调制的非接触电能传输模式研究
7.Modulation recognition of digital signals using spectral correlation and assembled neural networks基于谱相关特性和组合神经网络的数字调制信号识别
8.Health Diagnosis Research of Aircraft Based on the EMD Envelope Spectrum基于EMD包络谱的飞行器健康诊断
9.Evidently, there is another motion to be concerned with and that is the propagation of the modulation envelope.显然，还应当考虑另外一种运动，那就是调制包络的传播。
10.A Web-based Approach of Remote Cooperative Production Scheduling and Control in Distributed Network Manufacturing for Subcontract Production基于Web的分散网络化转包生产企业异地协同生产调度与控制方法
11.Development and Application of Intensity Modulated Photocurrent Spectroscopy and Intensity Modulated Photovoltage Spectroscopy强度调制光电流谱/光电压谱及其应用
12.Time delay of the modulation envelope of a signal in passing through a channel or network.信号通过某个通道或网络的过程中，经调制的包络线发生的时间上的延迟。
13.Its functions include automatic generation control, economic dispatching, network topology processing, state estimation, power flow dispatching and data base management.其功能包括自动发电控制,经济调度,网络拓扑处理,状态估计,潮流调度和数据库管理。
14.Continuum Removal and Its Application to the Spectrum Classification of Field Object;包络线消除法及其在野外光谱分类中的应用
15.Algorithm of Artificial Time Histories Meeting Requirements of Both Fitting of Response Spectrum and Envelop of Power Spectral Density同时满足反应谱匹配和功率谱密度包络要求的人工时程生成算法
16.envelope level of sync peak for modulated vision signal已调图像信号同步顶包络电平
17.envelope level for modulated vision signal已调图像信号的包络电平
18.Research on Packet Scheduling in Wireless Networks;数据包在无线网络中调度策略的研究
相关短句/例句
envelope modulation包络调制
3)constant envelope modulation恒包络调制
1.By theory and practice simulation, several types ofconstant envelope modulation techniques are analyzed and compared, including their modulation principle, the modulated wave envelope, power spectrums density, error bit rate and the influence of the band-limited.结合理论和实验仿真结果,分析讨论了深空通信中的各种恒包络调制技术,对它们的调制原理,已调波包络,功率谱密度,误码率性能,以及带限非线性信道对其功率谱的影响等方面都作了研究和比较。
2.We useconstant envelope modulation techniques because of the channel characteristics of deep-space communications.根据深空通信的要求,选择恒包络调制方式作为深空通信的调制方式。
4)modulation envelope调制包络线
5)Envelope modulation包络线调制
6)invariable envelop modulation恒定包络调制
延伸阅读
包络包络envelope而充分条件是f任C，，并且满足(9)和下列条件:D ff.f.几、_Df云.几、二二上二坦述二乙竺乙笋O，共月典二书笋砖0.D(x，y，z)一’D(A，B)对于曲面族r(u，。，A，B)，其中r任C，和rux瓦护0，必要条件是甲=(ru孔rA)=0，少=(气凡rB)=0，(10)而充分条件是r任口，并且满足(l0)和 }〕三三，三}，。，、，。. !叭凡巧几心礼峪ln维流形中依赖于k个参数的一族m维子流形包络的更复杂概念可在可微映射奇异性理论的基础上引出，作为一族映射的奇异性的特殊形式.给出的平面曲线族，其中C是族的参数，“是沿族中曲线的参数，一点在包络上的必要条件是几11rc，或 ，一孚毕共~一。，(3) D(u，C)两者是同一回事.充分条件是r‘CZ并且除满足(3)外还要满足几共一rc叭笋0.(4)违反条件(2)和(4)往往与包络上出现尖点有关.空间依赖于单参数C的曲面族的包络(山volopeofa fami】y ofsur阮璐)是这样的曲面，使得其上每个内蕴参数为(u，v)的点与族中参数为C(“，v)的曲面相接触，并且函数C(u，v)在(u，。)定义域的任何区域上不是常数.例如，中心在一直线上的同半径球面族的包络是一个柱面.对于由f(x，y，z，C)=0给出的曲面族，其中f“c’和沃廿诱l+匡}护0，包络的必要条件是满足方程组了=0，fc=0;(5)而充分条件是fe口并且除(5)外再加上条件: fc。笋0，(6) }卫丝二玉立{+}卫艾2五立}+}卫丛选立}，。.}L， Lx，y)}}L，沙，z)1】L，Lz，x)!对于曲面族r(u，v，C)，其中r‘C’和‘x凡笋0，包络的必要条件是满足方程职=(凡几几)=0;(7)而充分条件是r任CZ并且除(7)外还要满足下列条件:}叭叭毋。l}r二ru凡rurc}特o，}礼j+I叭i笋0.(8) l孔叽嵘几rc!违反条件(6)和(8)中的第一式往往与包络上出现尖棱有关.包络与族中每张曲面的接触线称为特征线(cl坦份以eristiC clu货).包络上的尖棱通常就是特征线的包络.空间依赖于双参数A和B的一族曲面的包络是这样的曲面，使得其上每点(u，v)与族中参数为A(u，v)和B(u，岭的曲面相接触，并且在(u，v)定义域的任何区域上不存在函数。‘c’使A(“，好二。(B(。
