| 非相干解调器门限的计算及降低之途径 |
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| 引用本文： | 熊美珑,秦卓仁.非相干解调器门限的计算及降低之途径[J].湘潭大学自然科学学报,1988(1). |
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| 作者姓名： | 熊美珑 秦卓仁 |
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| 作者单位： | 湘潭大学物理系
(熊美珑)，湘潭大学物理系(秦卓仁) |
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| 摘 要： | 本文认为信号的峰值和噪声的“峰值”相等是非相干解调器出现门限的临界点。据此算得FM波非相干解调器的门限值为dB,AM波的为4.3dB。最后还指明了降低非相干解调器门限值的途径。
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| 关 键 词： | 非相干解调器 门限 信噪比 |
CALCULATION ON THRESHOLD VALUE OF INCOHERENCE DEMODULATOR AND LOWERING WAY |
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| Xiong Meilong Qin Zhuoren.CALCULATION ON THRESHOLD VALUE OF INCOHERENCE DEMODULATOR AND LOWERING WAY[J].Natural Science Journal of Xiangtan University,1988(1). |
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| Authors: | Xiong Meilong Qin Zhuoren |
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| Institution: | Department of physics |
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| Abstract: | We hold that when the peak of signal and that of noice are equal,threshold critical point begins to appear on the incoherence demodulator,so the calculated threshold value is 9dB for FM signal or is 4.3dB forAM signal. In the end, we futher tell the way of lowering the thresholdvalue. |
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| Keywords: | incoherence demodu-lator threshold signal-to-noise ratio |
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