Re: FCC
This is the old but very important document. FCC made some corrections in 2006 and later. Beside this you need to be familiar with European and Japanese standards. Probably the most tricky point in UWB standards is how emissions are limited. FCC use electrical field strange and Europe and Japan use PSD in dBm per MHz. In US you need to use electrical field strange for tests and PSD in dBm per MHz for all system and circuit designs, analyzes and optimizations.