SYSTEMS AND METHODS FOR EFFICIENT MULTI-CHANNEL SATCOM WITH DYNAMIC POWER SUPPLY AND DIGITAL PRE-DISTORTION

摘要

A radio system, comprising an antenna; a baseband module, a power amplifier;and avariable power supply. The baseband module is configured to output a firstsignal tothe antenna, pre-distort the first signal based on computed coefficients, andoutput asecond signal. The second signal is determined based on one or morecharacteristicsof the first signal, and the second signal is output if there is a change inthe one ormore characteristics of the first signal. The power amplifier iscommunicativelycoupled to the baseband module and the antenna, and is configured to amplifythepre-distorted signal. The variable power supply is communicatively coupled tothe poweramplifier and the baseband module. The variable power supply is configured toreceive the second signal and generate a variable drain supply voltagecorrespondingto the second signal. The drain supply voltage is output to the poweramplifier.