FLEX-6000 Signature Series - SmartSDR for Windows Software User’s Guide
Page 28
Copyright 2018 FlexRadio Systems. All Rights Reserved.
9.2.5 Panafall
The Panafall display is simply a Panadapter and a Waterfall that are joined such that the horizontal
axis has the same frequency location. In this way, the Panadapter portion of the display will show
the current state of the spectrum and the Waterfall portion will show a historical perspective.
9.3 DYNAMIC FILTER DEPTH
In most SDR systems, the number of filter taps employed to carry out the filtering task are set by a
buffer size in the system. To change the filter tap depth, the system must be stopped before the
adjustment can be made. As more taps are added, filtering becomes sharper, but latency also
increases. In SmartSDR, the number of filter taps employed changes based on the mode and filter
width to achieve the best compromise between latency and filtering for the job. Ultimately, the
filtering capability and the latency are a function of the total duration of samples inside the filter at
any time. The table below shows the number of samples used in the filter, based on mode and filter
size. The more samples (and consequently time) inside the filter, the sharper the filter and the higher
the latency.
To Next Page
Loading...
Need help?
General
