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一般说来,在单声道调频收音机的鉴频器之后加一个解码器,便可得到左、右两通道信号。收听时立体声效果好坏取决于分离度S。除解码器对S有直接影响外,鉴频器的输出特性对S也有很大影响。本文就针对此问题讨论鉴频器的幅-频、相-频特性对分离度的影响。
In general, in the mono FM radio frequency detector plus a decoder, you can get left and right two-channel signal. Stereo effect when listening depends on the resolution S. In addition to the decoder has a direct impact on the S, the output of the frequency discriminator S also have a great impact. In this paper, we discuss the frequency-phase and phase-frequency characteristics of frequency discriminator on the resolution of the resolution.