| 1. | Secondly , tree trunks sit on the soil , thus two mediums , air and the soil , surround them . and it ' s impossible to obtain a closed surface in the environment of uniform medium for the time - domain near - zone to far - zone transformation
由于第三步中近远场时域变换是在半封闭源面，而非通常的封闭源面上进行的，其可靠性在文中给予了验证。 |
