Abstract:
An image registration system and method for matching images having fundamentally different characteristics. One exemplary feature of the system and method includes the use of an enhanced phase correlation method combined with a coarse sensor model to hypothesize and match a custom match metric to determine a best solution. The system and method may be operated on a non-transitory computer-readable medium storing a plurality of instructions which when executed by one or more processors causes the one or more processors to perform the image registration method utilizing the enhanced phase correlation.
Abstract:
A single aperture three channel optical system is disclosed. In one embodiment, the optical system includes a front optical group and a back optical group that is disposed in substantially close proximity to the front optical group. Further, the optical system includes a first sensor, a second sensor, and a third sensor. The front optical group and the second optical group receives an object beam and splits into a reflected beam having first wavelengths and a transmitted beam of second wavelengths. Furthermore, the front optical group and the second optical group splits the reflected beam having first wavelengths into a transmitted beam having third wavelengths and a reflected beam having fourth wavelengths. The first sensor, the second sensor and the third sensor receive the transmitted beam of second wavelengths, transmitted beam of third wavelengths, and reflected beam of fourth wavelengths, respectively and produce the coaxial three channel images.
Abstract:
An airborne hyperspectral scanning system with a reflective telecentric relay including a system housing fore-optics, mounted in the housing, an imaging spectrometer mounted in the housing, the imaging spectrometer comprising a spectrometer slit, the spectrometer slit having an exit side and an entrance side, a focal plane array, a fold mirror, and at least three spectrometer mirrors, ordered sequentially, and in optical alignment with each other, and a reflective telecentric relay, mounted in the housing between the fore-optics and the imaging spectrometer, the reflective telecentric relay comprising a collimator module, a scanning mirror module, and an objective module, the objective module being situated to receive intermediate image from the fore-optics and reflect a collimated beam to the scanning mirror image between the collimator module and the objective module, wherein the objective module is situated to form a telecentric image at the entrance of the spectrometer slit.
Abstract:
The present invention involves the use of nanoporous carbons derived from partially or fully demetalized metal carbides in personal protection equipment for the reversible absorption/adsorption of both broad and specific targeted gases. These materials have been specifically processed to provide enhanced effective loadings against specific harmful volatile organic compounds.
Abstract:
In an embodiment, an apparatus includes a detector and a range finder. The detector is configured to determine a direction to a target in response to a signal received from the target, and the range finder is configured to determine a range to the target in response to the direction and independently of an amplitude of the signal. For example, such an apparatus (e.g., a computer-based apparatus) may be disposed on tactical fighter aircraft, and may be able to range (e.g., azimuth range or slant range) a target passively even if an accurate measure of the amplitude of the signal received from the target is unavailable.
Abstract:
A system and method provide for easy sharing of data between different software languages. A method begins by creating a definition defining a data structure with a domain specific language. The definition is then input to a code generator which generates data structures and algorithms in a first software language. The same generator software also creates equivalent data structures and algorithms in a second software language that is different than the first software language. The two output implementations provide compatible utilities for marshalling and de-marshalling data back and forth between the first software language and the second software language without requiring further manipulation of the two implementations.
Abstract:
A laser system and method of use are provided in which the laser system may include a fiber laser oscillator and rare earth doped piece of optical fiber which may absorb unused pump light which is unabsorbed in the oscillator.
Abstract:
An optical apparatus to provide several light bands on a single coaligned beam line or axis. The apparatus generally comprises five main components: a pump, a fold mirror, an input coupler, a nonlinear optical (NLO) crystal, and an output coupler. Alternatively, the present invention may comprise four main components, namely, a pump, an acute porro prism, a NLO crystal, and an input-output coupler. The pump input beam makes two passes through the nonlinear optical crystal and generates two new colors, having different wavelengths, during each pass through the nonlinear optical crystal.
Abstract:
Embodiments of the present invention relate to a structure and method for providing better antenna element retention in the any environment. The structure may comprise at least two card guides attached to a base. Each card guide may have at least one antenna slot, and individual antenna elements may be guided into position by an antenna slot of two different card guides. The individual antenna elements may have their freedom of motion restricted in the direction of their insertion by caps attached to the card guides. The individual antenna elements may have their freedom of motion restricted in a direction transverse to their direction of insertion by retention members attached to the card guides. By allowing for the “top-down” assembly of individual antenna elements in a modular fashion, embodiments of the present invention may facilitate easier repair of antenna element arrays, than prior art array assemblies.
Abstract:
The present invention provides improved laser beam quality with fewer parts than the current method demands and decreasing the transmit aperture, said apparatus comprising: two or more independently pumped gain modules, two or more pump diodes, a polarizing waveplate, non-linear optical crystals, and a passive Q-switch.