To study ray (vector) analysis and pixel (grid) analysis which are applied in the calculation of fieldstrength of radio coverage, and compare their differences and characteristics.
研究无线覆盖场强计算中使用的射线分析法(矢量法)与像素分析法(栅格法),并比较二者的区别和特性。
2
Highaltitude electromagnetic pulse (HEMP) has the characteristics of a wide coverage and high peak fieldstrength, which poses a serious threat to the electronic devices.