Peter H Stockmann

7831214, Nov 9, 2010

Feb 24, 2006

11/361388

Peter H. Stockmann - Jamesville NY, US

Lockheed Martin Corporation - Bethesda MD

H04B 1/46

455 82, 455 78, 455 79, 455 83, 455 84

A T/R module utilizes a low noise amplifier in both the transmit and receive modes. In this manner the low noise amplifier enables one to provide a T/R module which has reduced prime power and lower weight and particularly useful in airship radar systems and spaced based radar systems. The low noise amplifier is switched between a receive and a transmit mode by switching mechanism which in the receive mode enables the antenna to be directed to the input of the low noise amplifier with the output of the low noise amplifier directed to a phase shifter and attenuator. The switching operates in a transmit mode where the output of the low noise amplifier is connected to the input of the antenna while the input of the low noise amplifier is now connected to the phase shifter and attenuator for providing a transmit signal. The invention has an additional benefit of enabling linear Class A operation in the transmit mode in both radar and communication systems supporting beam shaping and waveform shaping capabilities. A 100% transmit duty cycle for communications is also supported.

8013781, Sep 6, 2011

Sep 24, 2008

12/237093

Peter H. Stockmann - Jamesville NY, US

Lockheed Martin Corporation - Bethesda MD

G01S 7/292
G01S 7/02
G01S 13/00

342 93, 342 27, 342 28, 342 89, 342 91, 342159, 342175, 342194, 342195

In a radar system using a radar clutter map comprising a plurality of range-azimuth cells containing parameter data values indicative of time averaged echo returns for affecting alarm threshold levels at range-azimuth locations scanned by the radar system antenna, a method for detecting comprising the steps of obtaining from the radar clutter map a first parameter data value associated with a given cell under test (CUT); determining a second parameter data value using parameter data values of other cells from the plurality of range-azimuth cells from the radar clutter map; comparing the first parameter data value associated with the CUT with the second parameter data value; and generating a signal indicative of a target detection when the first parameter data value exceeds the second parameter data value by a given threshold corresponding to a target false alarm rate.

7522095, Apr 21, 2009

May 31, 2006

11/443815

Richard Wasiewicz - Tully NY, US
Peter H. Stockmann - Jamesville NY, US

Lockheed Martin Corporation - Bethesda MD

G01S 13/52
G01S 5/02
H01Q 3/00
H01Q 1/28
H01Q 21/00

342160, 342368, 342371, 342423, 343705, 343706, 343893

A polygonal cylindrically shaped phased array antenna forming a radar has an active aperture that focuses in any of one or more angular azimuth directions without inertia. It further includes adjacent multiple similar polygonal staves joined along their vertical edges to form a right regular polygonal cylinder. Each stave is further decomposed into flat panels, wherein each panel has a plurality of antenna elements positioned in a regular rectangular or triangular lattice. Each panel contains a beam forming network that electronically forms and steers an electromagnetic beam for purposes of transmission and subsequent reception. The panels optionally may operate as autonomous radars which when coherently combined form multiple larger antenna apertures, each capable of operating autonomously. A switching network allows transmit power and all requisite radar and control signals to be sent to and received from a selected set of panels anywhere on the polygonal cylinder.