Abstract

A plurality of telescopes provide output return signals which are applied both directly and in sampled form to a photo-detector cell. The detected signals from the photo-detector will represent the constant and transient errors of the telescope system. A low pass filter insures that the tracker provides only the constant or D.C. component of the error, while a high pass filter insures that the existing measuring devices for each telescope beam provide only the transient or A.C. component of the error. The A.C. and D.C. error signals are summed together with the appropriate applied gains on each channel such that the sum reconstructs the original telescope position error with good fidelity.

Document Type

Patent

Status

Issued

Issue Date

5-19-1987

Patent Number

US 4667090 A [4,667,090]

CPC Classification

G01S3/786

Application number

06/743338

Assignees

Government of the United States, as represented by the Secretary of the Air Force, Washington, DC (US)

Filing Date

6-10-1985

Comments

The 8.5" x 11" PDF of the patent has some apparent image over-run on several pages, starting page 3. Please refer to the A0 size attached file for the full images.

4667090.pdf (813 kB)
A0-size US 4667090

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