AADM (Asymmetric Amplitude Direct Modulation) is new modulation in Viet Nam. This is invention of us, the invention can open new prospect of electronics telecommulication in VietNam the same way as over world. If classic modulation technique, removing the noisc out of information on the power lines is very difficult then AADM technique we can transmit signalson the power lines that the noise is removed. Now we are accomplishing theory and expanding to build a modulation modules base on TMS320C6x/C5x of Texa Instrument. Fundamental of AADM technique uses a sinusoidal waveto encode and carry digital data with an enhanced amplitude of sinusoidal. AADM is a multilary ASK or FSK with the follwing major enhancements: The digital data symbols are directly embedded into each half wave cycle. The modulated sin wave is asymmetrical over the X-exit as each half of the sin wavecycle carries different set of digital data symbol rate
