Ian A Robinson

US Patent:

20210325516, Oct 21, 2021

Filed:

Apr 20, 2020

Appl. No.:

16/853051

Inventors:

- Waltham MA, US
Matthew J. Klotz - Waltham MA, US
Ian S. Robinson - Waltham MA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

G01S 7/481
G01S 17/89

Abstract:

A LADAR system includes a transmitter configured to emit a directed optical signal. The LADAR system includes an optical aperture through which the directed optical signal is emitted. The optical aperture receives a return optical signal that is based on the directed optical signal. The system includes a detector to generate a measurement by comparing an attribute of the return optical signal to a predefined threshold. The measurement is based on an amount of backscatter in the return optical signal. The system includes an obstructive element that is controllable, based on the measurement, to move either into or out of a path of the return optical signal. The obstructive element is configured to block the return optical signal at least partly. The system includes a focal plane located in the path of the return optical signal. The obstructive element is disposed between the optical aperture and the focal plane.

US Patent:

20210325668, Oct 21, 2021

Filed:

Apr 20, 2020

Appl. No.:

16/853029

Inventors:

- Waltham MA, US
Matthew J. Klotz - Waltham MA, US
Ian S. Robinson - Waltham MA, US
Lacy G. Cook - Waltham MA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

G02B 27/00
G02B 5/00
G01S 7/481

Abstract:

A LADAR system includes a transmitter configured to emit a directed optical signal. The LADAR system includes a shared optical aperture through which the directed optical signal is emitted. The shared optical aperture includes a first pupil plane. The shared optical aperture receives a return optical signal that is based on the directed optical signal. The system includes a mirror with a hole through which the directed optical signal passes. The mirror also reflects the return optical signal towards an imager. The imager receives the return optical signal and generates an image. The image is based on a portion of the return optical signal. The system also includes a partial aperture obscuration at a second pupil plane. The partial aperture obscuration may block a portion of internal backscatter in the return optical signal. The system also includes a focal plane to record the image.

US Patent:

20190067814, Feb 28, 2019

Filed:

Aug 25, 2017

Appl. No.:

15/686630

Inventors:

- Waltham MA, US
Harry B. Marr - Waltham MA, US
Ian Robinson - Waltham MA, US
Jeffrey Caldwell - Waltham MA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 3/38
H01Q 21/22
G01S 13/02

Abstract:

A system and method of digital beamforming for a monobit phased array radar system includes providing a plurality of monobit analog signals received by at least one antenna to at least one field programmable gate array (FPGA). A plurality of monobit SerDes transceivers within the FPGA convert the plurality of monobit analog signals into a plurality of multibit digital signals, each of the multibit digital signals being modified according to a digital signal conditioning value to calibrate, phase align, and synchronize the digital signals. A digital beam is formed by coherently combining the plurality of digital signals within the FPGA.

US Patent:

20140354477, Dec 4, 2014

Filed:

May 29, 2013

Appl. No.:

13/904953

Inventors:

- Waltham UT, US
Ian S. Robinson - Waltham MA, US

International Classification:

G01S 19/38

US Classification:

34235778

Abstract:

Technology to determine a satellite's orbit is disclosed. In an example, an orbital determination (OD) device for a satellite operable to determine a satellite's orbit can include computer circuitry configured to: Receive a single global positioning system-generated (GPS-generated) signal from a GPS satellite; decode an ephemeris of the GPS satellite from the GPS-generated signal; determine a Doppler shift and a Doppler trend of the GPS-generated signal; and generate a Doppler-GPS OD using the ephemeris of the GPS satellite and the Doppler shift and the Doppler trend of the GPS-generated signal fit to Kepler orbital elements of an orbit model.