摘要
为了解决模拟鉴频器中心频率和鉴频灵敏度随温度变化而发生漂移,以及在批量生产中,模拟鉴频器的生产效率低,产品一致性差等一系列问题,采用基于数字集成电路的设计方法设计了一种新型高性能数字鉴频器。通过多次实验证明,采用这种设计的鉴频器具有鉴频灵敏度高,且不随温度变化而发生显著漂移等优点,极大地提高了生产效率,并保证了产品的一致性。
To solve the problems of low stability of center frequency, large temperature drift, low production efficiency in mass production, and poor product consistency of the analog frequency discriminator, a novel digital frequency discriminator with high performance is designed based on digital intergrated circuit （IC） in the paper. Many experimental results show that the novel frequency discriminator has the advantages of high frequency discrimination sensitivity which does not vary with tem- perature, improving production efficiency and guaranteeing product consistency.
出处
《现代电子技术》
2012年第15期87-89,共3页
Modern Electronics Technique
关键词
数字鉴频器
鉴频精度
调频
解调
digital frequency discriminator
frequency discrimination accuracy
frequency modulation（FM）, demodulation
