论文部分内容阅读
本文论述了采用数字技术合成本机振荡信号、进行超外差广播接收机调谐的方法。列举了各种频率合成的锁相环(PLL)方法;包括频率补偿技术、预分频和分频技术,还讨论了调谐过程用微机控制和扫频的方法。
This paper discusses the method of synthesizing local oscillator signals by digital technique and tuning the superheterodyne receiver. The phase-locked loop (PLL) methods for various frequency synthesis are listed; including frequency compensation techniques, prescaler and divider techniques, and the use of computer-controlled and swept-frequency methods for the tuning process.