METHOD AND SYSTEM FOR AMPLITUDE CALIBRATION FOR POLAR MODULATION WITH DISCONTINUOUS PHASE
Aspects of a method and system for amplitude calibration for polar modulation with discontinuous phase may include amplifying a signal via a plurality of amplifiers such that a combined gain of the plurality of amplifiers comprises a coarse amplitude gain, an amplitude offset gain and a calibration gain. A gain of one or more of the plurality of amplifiers may be adjusted to set the coarse amplitude gain, and a gain of one or more remaining ones of the plurality of amplifiers may be adjusted to set the amplitude offset gain and the calibration gain. The setting of the coarse amplitude gain, the calibration gain and/or said amplitude offset gain may be adjusted dynamically and/or adaptively.
1 . A method for processing communication signals, the method comprising:
amplifying a signal via a plurality of amplifiers such that a combined gain of said plurality of amplifiers comprises a coarse amplitude gain, an amplitude offset gain and a calibration gain;
adjusting, based on a first control signal, a gain of one or more of said plurality of amplifiers to set said coarse amplitude gain; and
adjusting, based on a second control signal, a gain of one or more of remaining ones of said plurality of amplifiers to set said amplitude offset gain and said calibration gain, wherein said second control signal comprises an amplitude offset component and a calibration component.
2 . The method according to claim 1 , comprising dynamically adjusting said first control signal and/or said second control signal.
3 . The method according to claim 1 , comprising adaptively adjusting said first control signal and/or said second control signal.
4 . The method according to claim 1 , comprising switching said gain of said one or more of said plurality of amplifiers associated with said coarse amplitude gain between unity gain and an arbitrary fixed gain.
5 . The method according to claim 1 , wherein said gain of said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain and said calibration gain is variable and arbitrary.
6 . The method according to claim 1 , wherein said gain of said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain and said calibration gain is variable and discrete.
7 . The method according to claim 1 , wherein said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain and said calibration gain comprise one or more an analog amplifiers.
8 . The method according to claim 1 , comprising generating said signal by phase-modulating a radio-frequency carrier.
9 . The method according to claim 1 , comprising controlling said combined gain of said plurality of amplifiers based on a desired amplitude modulation and a desired calibration.
10 . The method according to claim 1 , comprising adjusting said calibration component based on distortion introduced by said one or more of said plurality of amplifiers.
11 . A system for processing communication signals, the system comprising:
one or more circuits comprising a plurality of amplifiers, said one or more circuits enable:
amplification of a signal via a plurality of amplifiers such that a combined gain of said plurality of amplifiers comprises a coarse amplitude gain, an amplitude offset gain and a calibration gain;
adjustment, based on a first control signal, of a gain of one or more of said plurality of amplifiers to set said coarse amplitude gain; and
adjustment, based on a second control signal, of a gain of one or more remaining ones of said plurality of amplifiers to set said amplitude offset gain and said calibration gain, wherein said second control signal comprises an amplitude offset component and a calibration component.
12 . The system according to claim 11 , wherein said one or more circuits dynamically adjust said first control signal and/or said second control signal.
13 . The system according to claim 11 , wherein said one or more circuits adaptively adjust said first control signal and/or said second control signal.
14 . The system according to claim 11 , wherein said one or more circuits switch said gain of said one or more of said plurality of amplifiers associated with said coarse amplitude gain between unity gain and an arbitrary fixed gain.
15 . The system according to claim 11 , wherein said gain of said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain and said calibration gain is variable and arbitrary.
16 . The system according to claim 11 , wherein said gain of said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain and said calibration gain is variable and discrete.
17 . The system according to claim 11 , wherein said one or more remaining ones of said plurality of amplifiers associated with said amplitude offset gain and said calibration gain comprise one or more analog amplifiers.
18 . The system according to claim 11 , wherein said one or more circuits generate said signal by phase-modulating a radio-frequency carrier.
19 . The system according to claim 11 , wherein said one or more circuits control said combined gain of said plurality of amplifiers based on a desired amplitude modulation and a desired calibration.
20 . The system according to claim 11 , comprising adjusting said calibration component based on distortion introduced by said one or more of said plurality of amplifiers.