关键词： 数字调制信号； 直接数字频率合成器； FPGA； DSP Builder [gap=1231]Key words: digital modulation signal； DDS； FPGA； DSP Builder ...
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digital modulation for baseband signal 基带信号数字调制
digital modulation of television signal 电视信号的数字调制
This pager introduces simply the interrelation between analog modulation signal and digital modulation signal on HFC networks recently.
简要叙述现阶段HFC网络中模拟调制信号与数字调制信号的相互影响。
Finally, the plan of implementing DQPSK digital modulation signal regeneration through adopting DSP chip is discussed and diagrams are given.
最后讨论了采用DSP芯片实现DQPS K数字调制信号再生处理的方案，给出了框图。
The approach is to use short-time analysis to extract the characteristics of time-varying amplitude, frequency and phase in a digital modulation signal, and applies them for simple identification.
该方法用短时分析提取数字调制信号在幅度、频率和相位随时间变化的特征，并利用这些特征对各种数字调制信号进行识别。
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