CAJ | 학술논문

由于功率计只能测试功率较大的微波信号,频谱仪测试脉冲信号存在失真现象,因此低功率超宽带线性调频脉冲信号功率测试在实际工程中是一个待解决的问题。在分析频谱仪功率测试原理的基础上,通过对信号频谱及频谱仪测试机理的理论分析,提出了采用频谱仪对线性调频脉冲信号功率测试的修正方法,并进行了详细分析研究,实测数据检验了该方法的有效性,解决了宽带低功率线性调频脉冲信号测试的难题。
유우공솔계지능측시공솔교대적미파신호,빈보의측시맥충신호존재실진현상,인차저공솔초관대선성조빈맥충신호공솔측시재실제공정중시일개대해결적문제。재분석빈보의공솔측시원리적기출상,통과대신호빈보급빈보의측시궤리적이론분석,제출료채용빈보의대선성조빈맥충신호공솔측시적수정방법,병진행료상세분석연구,실측수거검험료해방법적유효성,해결료관대저공솔선성조빈맥충신호측시적난제。
Due to the fact that the power meter only can measure the microwave signal with high level, and the measure distortion will occur when the pulse signal is tested by spectrum analyzer, the power measurement of low level UWB LFM signal is an unsolved matter in engineering. Based on the power measurement principle with spectrum analyzer and the theory of signal spectrum, a correction theory and method of low level LFM signal measure with spectrum analyzer is presented. The test shows the validity of the theory.