Teledyne LeCroy QPHY-UWB - Manual (Page 25)

QPHY-UWB Software Option
QPHY-UWB-OM-E Rev C
25
MAGNITUDE AND PHASE ANALYSIS
This view displays the Real and Imaginary components (Magnitude and Phase) that result from the DFT
processing of the UWB signal after down-converting it to baseband:
Selecting a Specific Packet and Symbol to Display
You can select a specific packet and the symbol of interest within one specific packet. The default value is packet
1, symbol 43 (beginning of User data) within the packet.
PLEASE NOTE THE FOLLOWING REGARDING SYMBOLS WITHIN A PACKET:
•
Preamble: Synchronization: 24 symbols (1 to 24) plus 6 Channel Estimation symbols (25 to 30). CE symbols
are used for channel equalization.
• Header: 12 symbols transmitted at low data rates
• User Data: from symbol 43 to end of packet. These are the only symbols transmitted at the Data Rate.
• The Mag/Phase view can display symbols 25 and above. Symbols 25 through 30, the CE symbols, are
displayed without equalization applied. This is valuable.