Carrier leakage adaptive elimination system in direct frequency conversion modulation
A technology of frequency conversion modulation and carrier leakage, applied in multi-carrier systems, modulation transfer, amplitude modulation components, etc., can solve the problems of unsatisfactory elimination of carrier leakage and slowness, achieve superior output analog radio frequency characteristics, and suppress carrier leakage.
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[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.
[0030] Such as figure 1 Shown is a schematic diagram of the application of this embodiment 1. Embodiment 1 includes: a down-conversion module 100, a demodulation and frequency-phase recovery module 200, a DC detection module 300, a feedback module 400, a modulation system 500, and a transmitting antenna 600, wherein: down-conversion After the input end of the module 100 is coupled with the transmitting antenna 600, the radio frequency signal to be processed is received and the baseband signal is output to the demodulation and frequency phase recovery module 200, and ...
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