Energy Density Spectrum Therefore ∑hpn=∫do=< n=-0 2兀 Hence, nLP [n]is a finite-energy sequence Copyright C 2001, S K. MitraCopyright © 2001, S. K. Mitra 8 Energy Density Spectrum • Therefore • Hence, is a finite-energy sequence       =   =  −  =− c n LP c c h n d 2 1 [ ] 2 h [n] LP