Teledyne LeCroy QPHY-UWB - Manual (Page 3)

QPHY-UWB Software Option
QPHY-UWB-OM-E Rev C
3
TABLE OF CONTENTS
OVERVIEW ................................................................................................................................ 5
INSTALLATION ......................................................................................................................... 6
Oscilloscope Option Key Installation .......................................................................................................................... 6
Oscilloscope Firmware Version: ................................................................................................................................. 6
BASIC SETUP FOR CAPTURING UWB PACKET OVER CABLE ........................................... 7
Sample Rate and Bandwidth Setup ........................................................................................................................... 7
Vertical Setup ............................................................................................................................................................. 7
Trigger and Timebase Setup ...................................................................................................................................... 7
CAPTURING A WIRELESS USB DATA PACKET ................................................................... 8
Antenna, Amplifier, and Filter ..................................................................................................................................... 8
Adding a Special Trigger Path .................................................................................................................................... 8
OVERVIEW OF UWB ANALYSIS MODE .................................................................................. 9
Turning the UWB Analysis Mode On and Off ........................................................................................................... 10
Selecting the Source for the UWB Waveform to be analyzed ................................................................................. 11
Specifying the MB-OFDM parameters for the packet to be analyzed ...................................................................... 11
Setting the Time Frequency Code (TFC) ......................................................................................................... 11
Setting the Band Group .................................................................................................................................... 12
Setting the Data Rate ....................................................................................................................................... 12
Interpreting the Packet Information Box ................................................................................................................... 13
Selecting the Analysis View and Associated Menus ................................................................................................ 13
SPECTROGRAM ANALYSIS .................................................................................................. 14
Setting the Center Frequency and Frequency Span ........................................................................................ 14
Dynamic Range ................................................................................................................................................ 15
POWER SPECTRAL DENSITY (PSD) ANALYSIS ................................................................. 16
Modifying the Symbol Timing Window ..................................................................................................................... 17
Mask Pass/Fail View ................................................................................................................................................ 18
Adjacent Channel Power Ratio (ACPR) View .......................................................................................................... 19
BAND POWER ANALYSIS ..................................................................................................... 20
ERROR VECTOR MAGNITUDE (EVM) & CONSTELLATION ANALYSIS ............................. 21
Real and Imaginary Waveforms (I and Q components) ........................................................................................... 22
Error Vector Magnitude (EVM) Measurement Parameter ........................................................................................ 22
Frequency Error Measurement Parameter .............................................................................................................. 23
EVM/Constellation Controls ..................................................................................................................................... 23
Include in Constellation and EVM ..................................................................................................................... 23
Selected Packets and Selected Symbol ........................................................................................................... 24
MAGNITUDE AND PHASE ANALYSIS .................................................................................. 25
Selecting a Specific Packet and Symbol to Display ................................................................................................. 25
Selecting Subcarrier Types to Display ..................................................................................................................... 26
Setting the Trace Style ............................................................................................................................................. 27
COMMON PHASE ERROR (CPE) VERSUS TIME ANALYSIS .............................................. 28
AUTOMATING UWB MEASUREMENT TAKING WITH QUALIPHY ...................................... 29
General Setup Dialog ............................................................................................................................................... 29
Standard Selection Dialog ........................................................................................................................................ 29