A low-power automatic gain control(AGC) strategy for BD-II/GPS compatible satellite navigation receivers is proposed.The proposed mixed-signal AGC has 55 dB gain control range and a simplified control loop.By monitoring the ADC sampling result,the proposed AGC automatically controlvariable gain amplifier(VGA) and programmable gain amplifiers(PGA).Compared with traditional counterpart,the proposed AGC strategy is more power-efficient,since it does not need a power detector or rectifier.The chip is fabricated...
【更新日期】
2014-08-29
【分类号】
P228.4
【正文快照】
Global navigation satellite system(GNSS)playsa critical role in positioning and navigationapplications,which has been widely used in civilianapplications.Currently,the market of satellitenavigation is dominated by the global positioningsystem(GPS).While,w
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