Data processing: structural design – modeling – simulation – and em – Electrical analog simulator – Of electrical device or system
Reexamination Certificate
1998-10-27
2001-10-09
Teska, Kevin J. (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Electrical analog simulator
Of electrical device or system
C703S002000, C703S013000, C342S169000, C342S171000
Reexamination Certificate
active
06301552
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates generally to radar simulators and more particularly to the simulation of video and timing signals from two-dimension radars.
Currently two-dimension radar simulators typically require a suite of electronic circuit boards and computers to generate simulated radar target signals. These simulators generally require considerable space and usually simulate targets for only one radar type per equipment enclosure.
A continuing need exists for a compact radar target simulator that is readily transportable to different sites for testing radar signal processing equipment.
SUMMARY OF THE INVENTION
A radar target simulator of the present invention outputs multiple video and timing signals for a selected radar type from a single computer bus card slot. Several targets including cluster targets may be simulated at conveniently selectable signal-to-noise ratios. Multiple radar types may be simulated concurrently using additional bus card slots in a single desktop computer.
An advantage of the radar target simulator of the present invention is that radar video and timing signals may be output concurrently from a single computer bus card slot for each selected radar type, reducing the size and cost of equipment typically required for radar simulators.
Another advantage is that noise may be added to the video signals at selectable signal-to-noise ratios to simulate interference.
Still another advantage is that several different video waveforms and digital noise levels may be selected from a single function generator under software control using the same hardware.
Yet another advantage is that radar clutter may be simulated with or without added noise at a selected amplitude at relatively low computer data transfer rates.
Another advantage is that a radar simulator of the present invention may be constructed and packaged on a computer bus slot card to output multiple radar video and timing signals for a selected radar type.
Still another advantage is that a different radar type may be simulated for each radar simulator card installed in a single desktop computer.
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Dahlke Weldon J.
Gomez Aldan D.
Pham Peter N.
Schmiedeberg David B.
Wilcox Dwight R.
Fendelman Harvey
Phan Thai
Teska Kevin J.
The United States of America as represented by the Secretary of
Ward James A.
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