Ashok K. Murugavel N. Ranganathan Ramamurti Chandramouli Srinath Chavali Least-square estimation of average power in digital CMOS circuits. 55-58 2002 10 IEEE Trans. VLSI Syst. 1 http://doi.ieeecomputersociety.org/10.1109/92.988730 db/journals/tvlsi/tvlsi10.html#MurugavelRCC02