| 摘要 |
<p>A receiver and receiving wireless signal method: varying gain of analog band-pass signal from input receiver under the control of analog automatic gain control (AAGC) signal; next, digitally sampling to get digital band-pass signal; then dividing the sampled digital band-pass signal into two branches, i.e. feedback branch and forward branch; detecting real signal envelope power of the digital band-pass signal in feedback branch to get envelope power and generating AAGC control signal according to the envelope power; digitally processing the digital band-pass signal in forward branch to get bit stream. By using a few samples of real signal after digitally sampling, the envelope power is directly calculated to reduce AAGC loop delay and to realize broad-band signal transient AAGC control.</p> |
