基于信噪比和噪声功率密度测量的射频接收通道状态检测方法

RF Receiving Channel State Detection Method Based on SNR and Noise Power Density Measurement

针对传统射频接收通道中靠近天线射频前端的故障检测代价大,检测颗粒度受限等问题,提出了一种基于噪声功率密度测量的射频接收通道状态检测方法。利用噪声系数与增益的级联迭代关联特性,实现对射频接收通道中各单元故障的准确定位。对技术原理进行了理论推导,并构建测试系统验证了方法的可行性与有效性。与传统方法相比,该方法可减少自检电路设计复杂度,减少链路上各个单元自检成本,并可消除自检盲区,实现对故障单元的准确定位。

A state detection method for RF reception channels based on noise power density measurement is proposed to address the high cost and limited detection granularity of fault detection near the antenna RF front-end in traditional RF reception channels.By utilizing the cascaded iterative correlation characteristics of noise coefficient and gain,accurate fault location of each unit in the RF receiving channel can be achieved.Theoretical derivation of technical principles is conducted and a testing system is constructed to verify the feasibility and effectiveness of the method.Compared with traditional methods,this method can reduce the complexity of self checking circuit design,reduce the self checking cost of each unit on the link,and eliminate self checking blind spots,achieving accurate positioning of faulty units.