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US 5,294,930 AGranted
Optical RF stereo
OwnerMing-Chiang Liinventor
Life of this patent
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Abstract
An optical RF stereo systems includes multiple remote vehicles, a processing center, and optical RF link systems for transmitting RF signals from remote vehicles to the processing center and for transmitting command and control signals from the processing center to remote vehicles.
Claims20
An optical RF stereo systems comprising:
- two widely separated antenna subsystems;
- a processing center;
- and
- two optical RF link systems linking the antenna subsystems to the processing center;
- wherein the optical RF stereo systems comprises means for forming a triangle among an object and two antenna subsystems;
- wherein the antenna subsystems comprise means for transmitting concurrent RF signals to or receiving from the object;
- wherein the optical RF link systems comprise:
- (a) means for receiving RF signals from one end;
- (b) means for up-converting the RF signals to an optical signal;
- (c) means for transiting the optical signal from one end to a second end;
- (d) means for down-converting the optical signal at the second end to an RF signal;
- and (e) means for transiting the RF signals between the antenna subsystems and the processing center.
9 more elements
A method for operating optical RF stereo systems comprising the steps of:
- (a) forming a triangle among an object and two antenna subsystems;
- (b) transmitting concurrent RF signals at the two antenna systems to the object or receiving from the object;
- (c) linking each antenna subsystem individually to a processing center through optical RF link systems;
- (d) up-converting RF signals to optical signals;
- (e) transiting optical signals from one ends of optical RF link systems to other ends;
- (f) transiting concurrent RF signals between the antenna subsystems and the processing center over optical RF link systems.
3 more elements
A direct laser bistatic radar system comprising:
- a transmitting site;
- a receiving site;
- a direct laser RF link system linking the transmitting site and receiving site;
- wherein the transmitting site comprises means for transmitting RF signals to an object;
- wherein the receiving site comprises means for receiving RF signals reflected from said object;
- and wherein the direct laser RF link systems comprises:
- (a) means for receiving a portion of the reflected RF signals from the receiving radar site;
- (b) means for up-converting the portion of reflected RF signals to an optical signal;
- (c) means for sending the optical signal from one end to a second end;
- (d) means for down-converting the optical signal at the second end to a RF signal;
- and (e) means for sending the received RF signals to the transmitting radar site;
- wherein the transmitting site comprises means for processing the received RF signals.
9 more elements
An RF network comprising:
- a radar network;
- an optical RF stereo systems;
- a master management center;
- optical fiber RF delay loops;
- wherein the master management center comprises means for integrating the management center of the radar network and the processing center of the optical RF stereo systems;
- wherein the optical RF delay loops comprise means for reducing path length differences of RF signals through paths linking an object by way of various antenna subsystems to the master management center.
3 more elements
Dependencies are inferred from the claim text.