Columbia subject headings:
Automatic tracking--Congresses.
Signal processing--Digital techniques--Congresses.
Signal processing--Digital techniques--Data processing--Congresses.
Harvard subject headings:
Automatic tracking--Congresses.
Signal processing--Digital techniques--Congresses.
Signal processing--Digital techniques--Data processing--Congresses.
Princeton subject headings:
Automatic tracking--Congresses.
Signal processing--Digital techniques--Congresses.
Signal processing--Digital techniques--Data processing--Congresses.