在分米波电视和微波网规划中频率指配的制约关系  

Constraints Between Frequency Assignments of UHF TV and Microwave Network Plans

作　　者：徐哲 周志坚 冯咏池 

出　　处：《广播与电视技术》1991年第5期9-15,共7页Radio & TV Broadcast Engineering

摘　　要：本文根据试验结果,阐述了微波信号与分米波电视信号(图像及伴音)谐波的频差和微波信号的射频信扰比,是在分米波电视和微波共台规划时频率分配的重要因素。由试验测得的数据表求出可能干扰点的保护率值,并提出抗干扰措施,可供频率规划时参考。According to the results obtained from experiments,it is explained that the frequency difference between the microwave signal andthe harmonics of UHF TV carrier frequency (picture or sound) and the R.F.signal to interference ratio of microwave signal are important factors offrequency assignment when co-site UHF TV and microwave assignments areplanned.The values of protection ratio at the points where interference maytake place and curves are derived from the data measured during theexperiments and measures against interference are suggested.They will behelpful in frequency planning.

关 键 词：微波信号 制约关系 微波网 频率指配 频率分配 信号电平 频差 抗干扰措施 网口 微波线路 

分 类 号：TN93[电子电信—信号与信息处理] TN94[电子电信—信息与通信工程]