Gunner accuracy control panel

• US 3,911,599 A
• Filed: 09/30/1974
• Issued: 10/14/1975
• Est. Priority Date: 09/30/1974
• Status: Expired due to Term

• Current Assignee: Douglas G. Talley
• Original Assignee: Douglas G. Talley
• Inventors: Talley, Douglas G.
• Primary Examiner(s): Wolff, John H.
• Application Number:
  US05/511,555
• Time in Patent Office: 379 Days
• Field of Search: 35/25 346/38 89/41EA
• US Class Current: 434/19
• CPC Class Codes: F41G 3/26 Teaching or practice apparatus for gun-aiming or gun-laying shooting games A63F9/02; light- or radiation-emitting guns F41A33/02; targets therefor F41J; responders, transponders for radar, sonar, lidar G01S13/767, G01S15/74, G01S17/74
• CPC Class Codes: F41G 3/30 Gun-laying apparatus

Abstract

A system for quantitatively and qualitatively evaluating the tracking performance of personnel using a telescopic sight to track a target is provided. The readout presented by the Gunner Accuracy Control Panel (GACP) is digital and hence may be reliably stored for an indefinite period of time with negligible drift. The liquid crystal display is visible in direct sunlight and may be artificially lighted for night use. When a target is tracked with the system of the invention, azimuth and elevation error signals are generated indicating the displacement of the tracked target from the optical line-of-sight of the tracker. The GACP processes these signals and presents a score as displayed on a digital readout which is inversely proportional to the total standard deviation from the line-of-sight of the operator'"'"''"'"'s tracking. No resetting is required, the digital readout turns off when the scoring begins and comes on a preselected time later to present the score achieved during that time.

Claims

1. A Gunner'"'"''"'"'s Accuracy Control Panel comprising:

means for receiving and processing an azimuth tracking error signal;

means for receiving and processing an elevation tracking error signal;

means for rectifying said azimuth tracking error signal causing all its deviations from a reference to be of like polarity;

means for rectifying said elevation tracking error signal causing all its deviations from a reference to be of like polarity;

means forming the sum of the absolute values of said azimuth and elevation tracking error signals;

means for pre selecting a time interval during which said azimuth and elevation tracking errors signals are accumulated;

means for scoring said sum of the absolute values of said azimuth and elevation tracking error signals during said pre selected time interval; and

means for displaying a tracking score attained during said pre selected time interval.

2. A Gunner'"'"''"'"'s Accuracy Control Panel according to claim 1 wherein said means for rectifying said azimuth tracking error signal includes at least one absolute value amplifier.

3. The system of claim 2 wherein said means for rectifying said elevation tracking error signal includes at least one absolute value amplifier.

4. A Gunner'"'"''"'"'s Accuracy Control Panel according to claim 1 wherein said means for scoring said sum of the absolute values of said azimuth and elevation tracking error signals during said pre selected time interval includes an analog integrator.

5. The system of claim 4 wherein said analog integrator includes a field effect transistor as one control element.

6. The system of claim 5 comprising at least one decade counter, triggered by a one-shot comparator configuration.

7. A Gunner'"'"''"'"'s Accuracy Control Panel according to claim 1 wherein said means for displaying a tracking score comprises at least one digital numerical display indicator.

8. The system of claim 7 wherein said digital numerical display indicator is a liquid crystal cell.

9. A Gunner'"'"''"'"'s Accuracy Control Panel comprising:

a first filter amplifier for receiving and processing an azimuth tracking error signal;

a second filter amplifier for receiving and processing an elevation tracking error signal;

a first absolute value amplifier for further processing said azimuth tracking error signal by rectification causing all of its deviations from a reference to be of like polarity;

a second absolute value amplifier for further processing said elevation tracking error signal by rectification causing all its deviations from a reference to be of like polarity;

a summing amplifier forming the sum of the absolute values of said azimuth and elevation tracking error signals;

a timer pre selecting a timed interval during which said azimuth and elevation tracking error signals are accumulated;

a counter in which said sum of the absolute values of said azimuth and elevation tracking error signals will be stored for saId pre selected timed interval; and

a display indicating a tracking score attained during said pre selected timed interval.

10. The system of claim 9 wherein said display indicating a tracking score is a digital, liquid crystal, numerical indicator.