Systems and methods of improving sampling of WLAN packet information to improve estimates of Doppler frequency of a WLAN positioning device. A device estimates the position of itself. The device includes a WLAN radio module for receiving WLAN signals transmitted by WLAN APs in range of said device, extraction...http://www.google.com.tw/patents/US7768963?utm_source=gb-gplus-share專利 US7768963 - System and method of improving sampling of WLAN packet information to improve estimates of Doppler frequency of a WLAN positioning device
