Tech Portfolio

A radio-frequency transparent window having internal conduits for the passage of cooling fluid is configured for simulating a highly uniform thermal environment for testing a device intended for use in space. The device to be tested is placed within a chamber in which a vacuum condition is maintained by a radio-frequency transparent pressure window under a pressure seal.

Systems and methods for converting wideband signals into the digital domain are provided herein.

A propellant management device comprising a plurality of insert vanes with respective outwardly extending curved flanges is disposed in a propellant tank with the curved flanges having mating contact along contacting lines on the interior of the tank as the insert vanes serves to wick fuel within the tank with reduced particulate generation within the tank for improved reliability and use of th

Systems and methods measure a physical parameter of a first substance having an absorption feature that varies based on the physical parameter. A tunable-frequency laser may transmit a first laser beam through the first substance and a second laser beam through a second substance having an isoclinic point.

A solar cell regulator in a nanosatellite includes a pulse width modulated DC-DC boost converter and a peak power tracking controller for converting solar cell power to bus power for charging of system batteries and powering loads while the controller controls the pulse width modulation operation of the converter for sensing solar cell currents and voltages along a power characteristic curve of

Systems and methods for preparing freestanding films using laser-assisted chemical etch (LACE), and freestanding films formed using same, are provided. In accordance with one aspect a substrate has a surface and a portion defining an isotropically defined cavity; and a substantially continuous film is disposed at the substrate surface and spans the isotropically defined cavity.

A system and method for measuring a glass transition temperature of a hydrophobic polymer having a surface tagged with an atmospheric plasma.

Systems and methods may include identifying an input population of parent epsilon chromosome data structures; combining genes of each selected pair of parent epsilon chromosome data structures according to at least one evolutionary operator to generate a plurality of child epsilon chromosome data structures, each child epsilon chromosome data structure providing one or more genes each having a

Certain embodiments of the invention may include systems and methods for implementing a multirate digital decimating filter for filtering received symbol data.

A hybrid rocket motor is manufactured by photopolymerizing the solid fuel grain in a stereolithography method, wherein fuel grains in a plastic matrix are deposited in layers for building a solid fuel rocket body in three dimensions for improved performance and for a compact design,

A thermo-photovoltaic power generator for efficiently converting thermal energy into electric energy including a selective thermal emitter for receiving thermal energy and emitting thermal radiation with black body emissivity over a range of wavelengths, low-bandgap photovoltaic cells responsive to thermal radiation at wavelengths within a particular band of said range of wavelengths and operat

A fluid storage and transport module includes complex plumbing features such as fluid reservoirs, filters, heat exchangers, three-dimensionally routed tubing, valves, mixing chambers, and exit apertures formed in and on a monolithic common bulk material using an additive rapid prototyping process of depositing multiple layers of rapid prototyping materials without welds, adhesives or compressio

A system, apparatus, and method is provided to remotely measure atmospheric species using a long path differential absorption technique. In one embodiment, a source and a detector are collocated and at the far end of the absorption path a retro-reflector is mounted on a vehicle.

An improved method for resolving interference between co-channel users is disclosed. A peak in a spectrum generated by a MUSIC algorithm is determined for a signal of interest (SOI) using a noise subspace. Also, an estimated carrier frequency offset (CFO) is determined for the SOI based on the determined peak in the spectrum.

A dynamic equalization system and method for use with a receiver is provided. The receiver may include an antenna for receiving a signal having multipath signal components and a digitizer for obtaining and digitizing the received signal and multipath signal components. The digitized signal segment and multipath signal components may be discretized into signal segments of length n.

An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal pow

Various embodiments are directed to systems and methods for processing signals comprising a first component and a second component. A bandwidth of the first component may be centered at a center frequency.

Certain embodiments of the invention may include systems and methods visualizing space debris events. According to an example embodiment of the invention, a method is provided for visualizing positional probability of objects in space.

Various embodiments are directed to a photonic impulse generator comprising a periodically chirped photonic source a single-frequency photonic source, a photodetector, an optical coupler, and a filter.

A battery is provided with a special form of conductive substrate that does not include the use of a conventional metal such that the overall weight of the battery is substantially reduced. Instead, the battery, such as the anode portion of the battery, includes a conductive base substrate made from a non-metallic, electrically conductive material.

Systems and methods may be provided for cylindrical Hall thrusters with independently controllable ionization and acceleration stages.

A terahertz generating assembly generally includes a light emitting device that is configured to generate at least one pulsed light beam. A first dispersion member is positioned proximate to the light emitting device, wherein the first dispersion member is configured to facilitate a temporal dispersion of the light beam.

Various embodiments are directed to a non-linear amplifier system comprising a reference output generator, an adaptive filter, a amplitude distortion (AM-AM) compensator, a phase distortion (AM-PM) compensator, an adaptive spectrum controller and a non-linear system. The reference output generator may receive an input signal and generating a reference output.

A hybrid rocket motor is manufactured by photopolymerizing the solid fuel grain in a stereolithography method, wherein fuel grains in a plastic matrix are deposited in layers for building a solid fuel rocket body in three dimensions for improved performance and for a compact design, the hybrid rocket motor including radial channels for defining a desired burn profile including the oxidizer to f