摘 要：无线通信中，接收机内部噪声、环境干扰噪声共同影响接收灵敏度。文章分析了利用等效噪声温度计算接收灵敏度的方法，建立仿真模型，仿真施加白噪声干扰、单音干扰、宽带信号干扰及其组合干扰对接收灵敏度的影响。对比仿真及利用等效噪声温度计算输出信噪比结果，得出等效噪声温度计算接收灵敏度的准确性。
关键词：噪声干扰；等效噪声温度；噪声系数；灵敏度
DOI:10.19850/j.cnki.2096-4706.2021.13.010
中图分类号：TN911.4 文献标识码：A 文章编号：2096-4706（2021）13-0037-05
Analysis on the Influence of Environmental Noise Interference on Receiving Sensitivity of Wireless Communication
ZHANG Feilong
(Southwest China Institute of Electronic Technology, Chengdu 610036, China)
Abstract: In wireless communication, the receiver internal noise and environmental interference noise mutually affect the receiving sensitivity. This paper analyzes the method of calculating the receiving sensitivity by using the equivalent noise temperature, establishes a simulation model to simulate the influence of white noise interference, single-tone interference, broadband signal interference and their combined interference on the receiving sensitivity. Comparing the simulation and using the equivalent noise temperature to calculate the output signal-to-noise ratio results, and calculates the accuracy of the receiving sensitivity by obtained equivalent noise temperature.
Keywords: noise interference; equivalent noise temperature; noise coefficient; sensitivity
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作者简介：张飞龙（1988—），男，汉族，河南周口人，工程 师，硕士，研究方向：射频通信电路设计、通信系统设计。