| 摘要: |
| 针对工程中本振相位噪声对接收机的影响常难以估量的问题，提出利用等效相位白噪声谱密
度进行评估的方法。通过分析相位噪声的产生及其对剩余误码率和动态范围的影响机理，仿
真了不同相位噪声对误码率的影响程度。通过仿真结果可知：相位噪声对接收机性能具有重
要的影响，工程中应针对不同的应用场合要求合理的相位噪声指标。 |
| 关键词: 超外差接收机 相位噪声 本振 剩余误码率 动态范围 |
| DOI： |
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| 基金项目: |
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| Effect of local oscillator phase noise on receiver performance |
| LI Yong-bo |
| () |
| Abstract: |
| To solve the problem that the effect of local oscillator phase noise on the rece
iver performance is immeasurable in practice, the method of using equivalent whi
te noise to evaluate the effect is proposed. Through analysing the generation of
phase noise, and the affection mechanism of residual BER and dynamic range, the
influence degrees of different phase noises on BER are simulated. The simulatio
n results show that phase noise is important to the performance of receiver.
For different applications, the reasonable phase noise should be required. |
| Key words: superheterodyne receiver phase noise local oscillator residual BER dynamic range |
《电讯技术》编辑部 