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本文首先对导频制立体声接收机的输入输出综合特性曲线进行了理论分析,然后得出接收机灵敏度、立体声阀、静度(50dB信噪比时的灵敏度)、最大信噪比、限幅电平等各项性能的相关性。在此基础上提出选择最佳曲线作为接收机总体设计的综合考虑。本文又根据对曲线的理论分析,提出整机设计限幅灵敏度以优于单路声接收机灵敏度6dB为宜的观点,并提出限幅电平高于门限电平是无益的论点。
In this paper, we first make a theoretical analysis of the input-output characteristic curve of the pilot stereo receiver, and then obtain the receiver sensitivity, stereo valve, static (50dB SNR sensitivity), maximum SNR, Equality of the performance of the relevance. Based on this, we propose to choose the best curve as the overall consideration of receiver design. Based on the theoretical analysis of the curve, this paper puts forward the viewpoint that the sensitivity of the whole machine design is better than the 6dB sensitivity of the single-channel acoustic receiver, and put forward the argument that the clipping level is higher than the threshold level.