Techniques for visualizing multiple time domain reflectometry waveforms

Abstract

Various embodiments include a TDR viewer for visualizing a large number of reflected TDR signals on a 3D display system. The TDR system captures the waveforms for reflected TDR signals that are associated with signal propagation and delay. The TDR viewer displays the signal waveforms as the signals propagate through the transmission lines. The waveforms can display changes in the reflected TDR signals due to transmission between various printed circuit board layers, through component connectors and vias of the printed circuit board, and across the interconnects and socket pins. The 3D visualization of the reflected TDR signals can be rotated in 3D space, zoomed in or out, and filtered to display a subset of signals. The 3D visualization enables a test engineer to more quickly identify TDR signals of interest, including signals with longer or shorter delay times relative to other TDR signals and signals that exhibit undesirable signal attributes.

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