supported by the National Natural Science Foundation of China(Nos.60806008,61076029);the National High Technology Research and Development Program of China(No.2009AA011606);the National Science and Technology Major Projects of China(No. 2009ZX03007-001)
A low-power wideband hybrid automatic gain control (AGC) loop for a GNSS receiver is presented. Single AGC in the I/Q path is composed of four-stage programmable gain amplifiers (PGAs), a differential peak detecto...