- 包络解调
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envelope demodulation中文什么意思
例句与用法
- Application of envelope demodulation method to fault diagnosis of spring invalidation
包络解调法在气阀弹簧失效故障诊断中的应用 - Application of wavelet envelope demodulation on early fault diagnosis of the rolling mill
小波包络解调在轧机故障早期诊断中的应用 - A new envelope demodulation method based on empirical mode decomposition ( emd ) is proposed to make up the limitation that meaningless frequencies often arise in the envelope spectrum of conventional envelope demodulation method
摘要提出了一种新的调制信号解调分析技术，来抑制传统的包络解调方法中经常出现的无意义的频率成分。 - The paper includes four sections followed here : the first section studies the modeling of signals of pulse doppler radar seeker , and establishes a radar signal simulation model , including radar emitting signal model , receiving signal model , receiving echo signal model , clutter model , noise model , sum channel directional pattern of antenna model , difference channel directional pattern of antenna model , sheltering model , rcs model , glint noise model , etc . the second section studies signal processing of pulse doppler radar seeker , and establishes radar signal processing mathematical model and data processing mathematical model for simulation , including windowing , doppler filtering , envelope demodulation , pdi , cfar , centering , velocity tracking , angle tracking , a - b filtering , etc . the third section studies the modeling of modified proportion guiding , and establishes guiding model , then dynamic simulation results is provided
论文的主要工作包括四部分：第一部分研究了脉冲多普勒雷达导引头的信号建模问题，建立了雷达信号模型，主要包括：发射信号模型、接收信号模型、目标回波信号模型、杂波模型、噪声模型、和差通道天线方向图模型、遮挡因子模型、接收机噪声模型、目标雷达截面积统计性模型、目标角闪烁模型等。第二部分研究了脉冲多普勒雷达导引头的信号处理模式，建立了信号和数据处理模型，主要包括：加窗和多普勒滤波、包络检波、检波后积累、频域cfar处理、速度定心、速度跟踪、角跟踪、 ?滤波等，然后给出了信号处理流程。