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US20090203405 |
Data transmission method, base station and user transceiver
A multicarrier data transmission method and a base station ( 200 ) are provided. The base station comprises an antenna arrangement ( 204 to 208 ) configured to form multiple antenna beams, and a...
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US20090195454 |
Soldier/ground vehicle passive ranging system utilizing compact spatiotemporal processor
A method of two-source passive ranging comprising the steps of determining the coordinates of a first position and a second position wherein a first soldier or ground vehicle is located at the...
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US20090040107 |
SMART ANTENNA SUBSYSTEM
The present invention provides several smart antenna devices and methods. The devices and methods incorporate a programmable delay element into each RF pathway, which enables smart antennas to...
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US20090027268 |
Multi Beam Photonic Beamformer
A true time delay beamformer for RF/microwave phased array antenna systems using multiple laser sources, optical modulators to convert the electrical signal to a modulated optical signal, standard...
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US20090002236 |
Electro optical scanning phased array antenna for pulsed operation
An electro optical scanning phased array antenna having a laser which generates a pulsed output. A microwave source has an output which amplitude modulates the optical output from the laser through...
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US20080261536 |
AUTOMATIC DELAY CALIBRATION AND TRACKING FOR ULTRA-WIDEBAND ANTENNA ARRAY
A method for determining changes in internal delays of RF units, the RF units including a plurality of receivers and transmitters. The method includes providing initial direct signals' time of...
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US20080252524 |
Path-Sharing Transceiver Architecture for Antenna Arrays
A path sharing transceiver array architecture is disclosed. A plurality of channels are linked to antennas of an array for transmitting and receiving wireless signals that are offset in one of...
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US20080158055 |
DIRECTIVE SPATIAL INTERFERENCE BEAM CONTROL
The invention, in its various aspects and embodiments, comprises a variety methods and apparatuses. The methods variously determine the delay (or phase shift) in each element of a phased array to...
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US20080106466 |
Method, Computer Program Product and System for Differentiating Physical Sources from Second Order Nonlinear Signal Effects
A system for differentiating between a signal from a physical source and a nonlinear signal effect includes an array, a delay control element and a signal processing element. The array is...
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US20080048911 |
Beamforming apparatus and method
A beamforming apparatus obtains the beamforming parameters that realize arbitrary desirable PSF by using optimization theories. The apparatus uses at least one of the beamforming parameters such as...
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