模拟自由场测量（续）为了保存低频分辨率，并避免在ｆ＿ｓ的高、低频率区域的频率分辨率出现不连续，将线性（ＦＦＴ）远场数据变换成与近场测量时的ＩＳＯＲ８０形式等效的对数形式（恒定百分比带宽）。这是一种以分贝作对数频率轴函数的直线插入法。线数从１Ｈｚ至４０... Simulated free-field measurements (cont.) To preserve low-frequency resolution and avoid discontinuities in the frequency resolution of the high and low frequency regions of f_s, transform the linear (FFT) far-field data to ISOR80 for near-field measurements Effective logarithmic form (constant percentage bandwidth). This is a straight-line interpolation method using decibel as a logarithmic frequency axis function. Number of lines from 1Hz to 40 ...