Device and method for expanding dynamic range of analog-to-digital converter (ADC)
An analog-to-digital converter and dynamic range technology, which is applied in the field of digital communication, can solve the problems of limited dynamic range, nonlinearity and quantization noise, and achieve the effects of high dynamic range, no signal bandwidth limitation, and cost reduction
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[0035] Describe technical scheme of the present invention in further detail below in conjunction with accompanying drawing: as figure 1 As shown, a device for improving the dynamic range of an analog-to-digital converter is characterized in that it includes an AGC power division module, an analog-to-digital converter ADC1, a digital phase shift gain module, an analog delayer 1, a high dynamic digital-to-analog conversion module, Adder, filter amplification module, analog delayer 2, analog-to-digital converter ADC2, digital delayer, combiner, parameter search / estimation module and control interface, the two outputs of the AGC power division module are respectively connected to the analog-to-digital converter ADC1 is connected to the analog delayer 1, the output of the analog-to-digital converter ADC1 is connected to the digital phase-shift gain module, and the output of the digital phase-shift gain module is respectively connected to the digital-to-analog converter DAC1 and the ...
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