4/7/2005 - Testing the system for performance

  
The entire last week was spent on testing the system for performance. The RSSI value was fluctuating by a huge margin causing problems in positioning the tag. Different kinds of filters were tried to make the RSSI value stable, but neither of those effort was successful. The main reason for this sudden change is the multi path and fading effects. Since this system is based on indoors this issue is going to be a main defect of the system. We looked into possibility of adding an extra peak detector IC to stabilize and average the signal. Work is under progress to make the system immune to the multi path effect.

Omar Elsahy:
• Worked on the Billing material
• Worked on the validation review
• Ordered new parts
• Helped building new Access Points

Fernando Souto:
• Helped the test process
• Altered the schematics
• Looked into validation review
• Decided on further tasks to be done
• Worked on antenna of the system

Aldwin Saugere:
• Created a new task list
• Worked on serial port communication between the PC and the Access Points
• Worked on WRNS computation engine
• Worked on the Graphical User Interface

Ajit Gaddam:
• Worked on the software implementation

Anand Mehta:
• Worked on the communication code
• Tested the system for performance
• Worked on the RS 232 IC

Milinda Wathugala:
• Built the prototype
• Started building new access points
• Helped the test process

Thanujan Ratnarajah:
• Tested the system
• Researched on the peak detection IC
• Build the peak detection circuit
• Looked into antennas with higher gain