Michael D Greenfield

US Patent:

20200189733, Jun 18, 2020

Filed:

Jan 31, 2018

Appl. No.:

15/884929

Inventors:

- Chicago IL, US
Michael Jeffrey Greenfield - Anaheim CA, US
Christopher Stephan van Harmelen - Fremont CA, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

B64C 39/02
G05D 1/10

Abstract:

An unmanned aerial vehicle (UAV) launch system includes a launch container including a housing defining an internal chamber. A UAV includes a main body defining an inflatable envelope. The UAV is configured to be contained within the internal chamber. The main body is in a deflated state when the UAV is contained within the internal chamber. A reactant is configured to react with water to produce a lifting gas. The inflatable envelope is configured to be inflated by the lifting gas in response to the reactant reacting with the water to deploy the UAV from the launch container.

US Patent:

20180364344, Dec 20, 2018

Filed:

Jun 14, 2017

Appl. No.:

15/622881

Inventors:

- Chicago IL, US
Michael J. Greenfield - Anaheim CA, US
Randall L. Mosten - Irvine CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

G01S 11/10
G01S 19/29

Abstract:

Systems, methods, and devices are disclosed herein for Doppler based position estimation. Systems may include an antenna configured to receive a radio frequency (RF) signal from an emitter, and configured to generate an output signal based on the received RF signal. Systems may also include a receiver configured to receive the output signal from the antenna. The receiver may include one or more processors configured to identify a plurality of initial conditions for a plurality of state variables associated with the emitter, obtain a measurement of the RF signal from the emitter and an estimate of an uncertainty associated with the measurement, and generate an output based, at least in part, on an updated estimate of the plurality of state variables, the output identifying a position, velocity, and carrier frequency of the emitter. Systems may also include a communications interface configured to communicatively couple the antenna with the receiver.