Changes between Version 7 and Version 8 of Internal/Mapping/Calibration

Timestamp:

Aug 25, 2006, 9:53:40 PM (18 years ago)

Author:

zhibinwu

Comment:

—

Internal/Mapping/Calibration

@@ -4 +4 @@
 
 As the first important discovery in ORBIT testbed, some (if not most) !WiFi cards behaved strangely. Therefore, it is really important to identify those '''bad''' cards. The calibration procedure tries to find if the Tx power and RSSI measurement of the card in each 802.11 channel is ''regular''  or not.
+
+For each card, the calibration has two experiments:
+ 1. A standard signaling generator will generator 500 802.11 beacons in 5 seconds, the card has to report its measured RSSIs.
+ 1. A VSA equipment will measure 500 beacons generated by the card
+
+Those experiments are going to be repeated in each 802.11 a/b/g channel and with 4 different Tx power levels: 1, 10, 20, 100mW.
 
 == Calibration Procedure ==
@@ -13 +19 @@
  1. check the calibration_central database in idb1. 
  1. Do above procedures for another card
+
+== Database Format ==
+
+The database is named  “calibration_central”. It is now in idb1.
+It has two tables:
+ *  Rx_caliber: has all measurements by  Card Tx experiments
+ *  Tx_caliber: has all measurements by “card <- VSA” Setting
+
+
+
+
  
 == For developers ==