摘要
从电视机中频的选择原则出发，研究了超外差式电视接收机的混频特性．导出了组合干扰频率的一般表达式，给出了组合干扰频带及其中心频率的计算公式，并将计算结果绘成图表．为合理地选择最佳中频提供了科学依据．
This paper studies the mixing characteristics of the superheterodyne converter television from the selection principle of television frequency.From the analysis it has deduced the general expression for combination interfering frequency,given the calculation formula for combination interfering frequency band and centre frequency and charted the computing results.The study has provided a reliable scientific groung for the rational selection of the best mid frequency.
出处
《四川师范学院学报（自然科学版）》
1996年第4期60-65,共6页
Journal of Sichuan Teachers College(Natural Science)
