公开(公告)号：US20070066259A1

公开(公告)日：2007-03-22

申请号：US11557728

申请日：2006-11-08

申请人： Philip Ryan ,  Andrew Adams ,  John O'Sullivan ,  Uri Parker ,  Brian Hart ,  Grzegorz Zyner

发明人： Philip Ryan ,  Andrew Adams ,  John O'Sullivan ,  Uri Parker ,  Brian Hart ,  Grzegorz Zyner

IPC分类号： H04B17/00 ,  H04B7/00

CPC分类号： H03G3/3078

摘要： A digital AGC system for burst operation, particularly suited for receiving packets in a wireless local area network. One embodiment includes a log detector that provides a signal strength measure, called the received signal strength indication (RSSI) over a wide dynamic range. The AGC system includes estimating the power in a received signal by averaging the log of the signal power. The Start of Packet detection avoids using the radio receiver's main analog to digital converters to preserve power.

摘要翻译： 一种用于突发操作的数字AGC系统，特别适用于在无线局域网中接收分组。 一个实施例包括在宽动态范围内提供称为接收信号强度指示（RSSI）的信号强度测量的对数检测器。 AGC系统包括通过对信号功率的对数求平均来估计接收信号中的功率。 分组检测的开始避免使用无线电接收机的主要模数转换器来保持功率。