基于T检测的射频检测方法

介绍了一种基于假设检验的射频检测方法.此方法将背景信号分成N帧,得到每一帧的频谱后,由每一频点产生N个样本,同样得到另一组包含背景信号与待测信号的样本集合,最后逐频点对两个样本集进行统计检测,确定待测设备产生的射频频段.针对背景噪声信号为正态分布的情况,采用参数检验t检验,在不同信噪比下做了检测仿真.仿真结果显示,本方法在信噪比低的情况下依然可取得较好的检测结果.

Detection of Radio Frequency Testing Based on T-test

A radio frequency measurement system based on hypothesis testing is introduced in this paper.By comparing different classical methods which apply the anechoic chamber test,an improved way is found.Firstly,the frequency spectrum of each of the N frames for background signal is obtained.For every frequency point,we can get a set of N samples,and likewise another set for background signal and signal from device under test.Finally,the two sample sets of each frequency point are put under statistical test to det...