Apparatus and method for remote sensing of an object

• US 5,808,292 A
• Filed: 11/26/1997
• Issued: 09/15/1998
• Est. Priority Date: 12/19/1994
• Status: Expired due to Fees

• Current Assignee: Rafael - Armament Development Authority Ltd.
• Original Assignee: State of Israel--Ministry of Defence Armament Development Authority Rafael
• Inventors: Iddan, Gabriel
• Primary Examiner(s): LE, QUE TAN
• Application Number:
  US08/979,218
• Time in Patent Office: 293 Days
• Field of Search: 250/203.1, 250/203.2, 250/203.4, 250/206.1, 244/3.16, 244/3.18
• US Class Current: 250/203.1
• CPC Class Codes: G01S 3/784 using a mosaic of detectors

Abstract

A sensing and tracking system is provided which includes a stationary array of sensors, a control system and a stationary lens assembly. The control system activates at least one sensor of the array of sensors and for receiving data therefrom. The stationary lens assembly focusses radiation from at least one object spaced away from the sensing and tracking system on the activated sensor.

Claims

1. A sensing and tracking system comprising;

a. a stationary array of sensors;

b. a control system for activating a portion of said array of sensors at a time so as to sense data from a different field of view which forms part of a field of regard a plurality of times, each time said control system activates a different portion of said plurality of sensors so as to provide tracking pattern within said field of regard; and

c. a stationary lens assembly for focusing radiation from at least one object in said field of regard on said activated portion of said stationary array of sensors, thereby sensing and tracking said object.

2. A system according to claim 1 wherein said control system also operates to produce at least one image from said sensed data.

3. A system according to claim 1 wherein said control system activates at least two sensors spaced away one from the other.

4. A system according to claim 3 wherein said control system also operates to produce at least two images representing sensed data from two spaced away areas, each corresponding to one of said at least two sensors spaced away one from the other.

5. A system according to claim 1 wherein said array of sensors include an array of random access sensors.

6. A system according to claim 5 wherein said control system is capable of accessing any one of said random array of sensors in any order.

7. A system according to claim 1 wherein said array of sensor include an array of Charged Injection Device (CID) sensors.

8. A system according to claim 7 wherein said CID comprises an array of at least 2000 by 2000 sensing elements.

9. A system according to claim 1 wherein said control system includes a sequencer and two registers.

10. A system according to claim 1 wherein said control system operates to receive data from the activated sensors at a desired rate.

11. A method for employing a sensing and tracking system comprising the steps of:

a. activating a portion of said stationary array of sensors at a time so as to sense data from a different field of view which forms part of a field of regard a plurality of times, each time said control system activates a different portion of said plurality of sensors so as to provide a tracking pattern within said field of regard; and

b. focusing radiation from at least one object in said field of regard on said activated portion of said stationary array of sensors thereby sensing and tracking said object.

12. A method according to claim 11 further comprising the steps of producing at least one image from said sensed data.

13. A method according to claim 11 further comprising steps of activating at least two sensors spaced away one from the other.

14. A method according to claim 13, comprising steps of producing at least two images representing sensed data from two spaced away areas, each corresponding to one of said at least two sensors spaced away one from the other.

15. A method according to claims 11 wherein said array of sensors include an array of random access sensors.

16. A method according to claim 15 further comprising the steps of accessing any one of said random array of sensors in any order.

17. A method according to claims 11 wherein said array of sensors include an array of Charged Injection Device (CID) sensors.

18. A method according to claim 17 wherein said CID comprises an array of at least 2000 by 2000 sensing elements.

19. A method according to claim 11 comprising the steps of employing a sequencer and two registers for accessing any one of said array of sensors.

20. A method according to claim 11 comprising the steps of receiving data from the activated sensors at a desired rate.