Digital modem technology in the digital communication occupies a very important position, commonly used digital modulation are: frequency shift keying (FSK) and phase-shift keying (PSK), and so on.

 
  • 数字调制解调技术在数字通信中占有非常重要的地位,常用的数字调制有:移频键控(FSK)和移相键控(PSK)等。
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