Another view of dimensions and dB
W.W. Ward, Bruce B. Barrow · Proceedings of the IEEE · 1972
It was recently proposed to express watts per hertz in decibels as dBJ, or decibels referred to one joule. We point out in this letter that there is broad freedom a) to calculate logarithms and b) to assign dimensions. From this viewpoint, it makes sense to express Anything in decibels as dBA, or decibels referred to one Anything. Standards experts please note!