Bulot
Jean-Paul Bulot, Redondo Beach, CA US
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20110299849 | METHOD AND APPARATUS FOR SYNTHESIZING AND CORRECTING PHASE DISTORTIONS IN ULTRA-WIDE BANDWIDTH OPTICAL WAVEFORMS - In accordance with various aspects of the disclosure, a method, an apparatus and a system for characterizing and compensating for deterministic phase nonlinearities and distortion inherent in radio frequency and optical components utilized to synthesize a single sideband suppressed carrier optical waveform in the presence of random phase noise generated by an optical carrier source is disclosed. The method comprises mixing a modulated optical signal with a continuous wave optical signal in an optical coupler; optically heterodyning the mixed signal output from the optical coupler in a detector to produce a radio frequency waveform; and analyzing the produced radio frequency waveform in a processor based on a phase history of a preselected continuous wave signal to measure distortion characteristics of the radio frequency modulated optical signal. | 12-08-2011 |
Jean-Paul Bulot, El Segundo, CA US
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20120141141 | METHOD AND APPARATUS FOR SYNTHESIZING ULTRA-WIDE BANDWIDTH WAVEFORMS - In accordance with various aspects of the disclosure, a method and apparatus is disclosed for increasing waveform bandwidth of an optical frequency waveform during optical double sideband suppressed carrier modulation. An optical modulator is configured to operate in double sideband, suppressed carrier modulation (DSB-SC) mode producing multiple optical sidebands and optical sideband harmonics. Proper selection of the appropriate optical harmonic via optical filter enables the synthesis of ultra-wideband single-sideband, suppressed carrier (SSB-SC) optical waveforms while simultaneously simplifying the radio frequency (RF) circuitry that generates the modulating radio frequency waveform. | 06-07-2012 |
20130104661 | METHOD AND APPARATUS FOR RANGE RESOLVED LASER DOPPLER VIBROMETRY | 05-02-2013 |
20130148095 | DOPPLER COMPENSATION FOR A COHERENT LADAR - In one aspect, a method includes representing a range of Doppler frequency offsets as a local oscillator waveform comprising a plurality of digital waveform samples, selecting a portion of the plurality of digital waveform samples using a Doppler value to form an optical heterodyne; and generating a signal associated with a target within a bandwidth of a receiver using the optical heterodyne. | 06-13-2013 |
20130148103 | RANGE-RESOLVED VIBRATION USING LARGE TIME-BANDWIDTH PRODUCT LADAR WAVEFORMS - In one aspect, a method includes forming range bins from range compressed data, the range compressed data comprising a train of coherent pulses formed based on a transmitted signal from a laser detection and ranging (LADAR) sensor and having a large time-bandwidth product and for each range bin, compensating for motion of the LADAR sensor, performing a Fourier transform on the compressed range data, determining a centroid of individual velocity measurements and performing Fourier transform of the centroid to determine a vibration. | 06-13-2013 |
Nicolas Bulot, Assat FR
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20140133957 | METHOD OF DIFFUSING A GAS TURBINE COMPRESSION STAGE, AND DIFFUSION STAGE FOR IMPLEMENTING SAME - A diffusion stage of a radial or mixed gas turbine engine compressor includes an impeller formed by two plates, between which fluid flows in a centrifugal or inclined manner from a center towards a periphery. Blades of a cascade are distributed between the plates to channel the flow of the fluid between leading edges of the blades at the center and trailing edges at the periphery. At least one of the plates has an internal face including at least one zone with alternating hollow and bump curvatures between two adjacent blades, in at least one of two substantially perpendicular directions, in the direction of flow along the blades and in an inter-blade tangential direction. | 05-15-2014 |
Nicolas Pascal Bulot, Assat FR
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20160053774 | RADIAL OR MIXED-FLOW COMPRESSOR DIFFUSER HAVING VANES - The invention relates to a vane ( | 02-25-2016 |
Stéphane Bulot, Bourges FR
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20120305149 | MELT-CAST INSENSITIVE EXPLOSIVE COMPOSITION - An insensitive melt-cast explosive composition incorporating on the one hand a meltable part formed of at least one meltable explosive and, on the other hand, a solid part incorporating oxynitrotriazole (ONTA) and cyclonite (RDX). This composition is characterised in that the cyclonite is a cyclonite of reduced sensitivity, the particle size of the insensitive cyclonite being of between 315 micrometers and 800 micrometers, whereas the particle size of the ONTA is of between 200 micrometers and 400 micrometers, the ONTA further having an apparent density greater than or equal to 0.95 g/cm | 12-06-2012 |
Stéphane Bulot, Bourges FR
Patent application number | Description | Published |
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20120305149 | MELT-CAST INSENSITIVE EXPLOSIVE COMPOSITION - An insensitive melt-cast explosive composition incorporating on the one hand a meltable part formed of at least one meltable explosive and, on the other hand, a solid part incorporating oxynitrotriazole (ONTA) and cyclonite (RDX). This composition is characterised in that the cyclonite is a cyclonite of reduced sensitivity, the particle size of the insensitive cyclonite being of between 315 micrometers and 800 micrometers, whereas the particle size of the ONTA is of between 200 micrometers and 400 micrometers, the ONTA further having an apparent density greater than or equal to 0.95 g/cm | 12-06-2012 |