BAE SYSTEMS NATIONAL SECURITY SOLUTIONS INC.
|BAE SYSTEMS NATIONAL SECURITY SOLUTIONS INC. Patent applications|
|Patent application number||Title||Published|
|20130013262||METHOD OF PERFORMING SYNTHETIC INSTRUMENT BASED NOISE ANALYSIS USING PROPORTIONAL BANDWIDTH SPECTRUM ANALYSIS TECHNIQUES - A system and method for filtering an input signal with at least a first and a second octave portions is presented. A proportional bandwidth filter system includes a bandwidth reducing filter, a down-sampler, and first and second octave filters. The bandwidth reducing filter reduces the bandwidth of the input signal and the down-sampler rolls the second octave portion represented in the reduced bandwidth signal to a top octave portion of a down-sampled signal. The first and second octave filters are comprised of a plurality of proportional bandwidth filters. The first octave filter partitions and converts the first octave portion of the input signal into output signals representing the frequency spectra of the first octave of the input signal. Similarly, the second octave filter generates outputs representing the spectra of the second octave portion of the input signal represented as the top octave portion of a down-sampled signal.||01-10-2013|
|20120263373||INVERSE STEREO IMAGE MATCHING FOR CHANGE DETECTION - A system and method for finding real terrain matches in a stereo image pair is presented. A method for finding differences of underlying terrain between a first stereo image and a second stereo image includes performing epipolar rectification on a stereo image pair to produce rectified image data. The method performs a hybrid stereo image matching on the rectified image data to produce image matching data. A digital surface model (DSM) is generated based on the image matching data. Next, the method identifies areas in the DSM where the stereo image matching should fail based on the image matching data and the DSM to generate predicted failures. The method can then determine real terrain changes based on the predicted failures and the image matching data.||10-18-2012|
|20120151209||MULTILEVEL SECURITY SERVER FRAMEWORK - Systems, apparatus and other embodiments associated with a multi-level security (MLS) server framework are presented. An MLS server framework provides a trusted virtual environment to host multiple tenants, categories, classification enclaves and security enclaves. The MLS server framework includes virtual machines, virtual networks, a mandatory access control (MAC), a hypervisor and a virtual trusted platform module (vTPM) management machine. The virtual networks are connected to the virtual machines and the hypervisor is connected to the MAC and the virtual networks. The MAC sets security policies and the hypervisor enforces the security policies and classifies virtual components within a trusted virtual environment formed by the MLS server framework. The vTPM management machine provides attestation of each virtual machine to ensure the MLS server framework is in a secure state.||06-14-2012|
|20120062302||PROPER FREQUENCY PLANNING IN A SYNTHETIC INSTRUMENT RF SYSTEM - A system and method for clocking in analog-to-digital (ADC) converter in a synthetic instrument unit is presented. A method begins by applying an input clock to an amplifier to produce an amplified clock. The amplified clock is filtered to produce a filtered clock. The ADC of this synthetic instrument unit is clocked with the filtered clock. The input frequency of the ADC corresponds to a second or higher order Nyquist zone that is above the sampling frequency of the ADC. The input data is carried by an intermediate frequency (IF) signal. The filtered clock of ADC is switched off a clock path of the ADC when the ADC is not in use.||03-15-2012|
|20120020397||SYNTHETIC INSTRUMENT UNIT - Systems and other embodiments associated with synthetic instrumentation are presented. A reconfigurable synthetic instrumentation unit comprises an input module, with dual input/output ports and conditioning logic to condition an input signal. An RF down converter selectively down converts the conditioned input signal. A sampled RF down converter selectively samples the conditioned input signal. A pair of narrowband A/D converters are configured to convert one of the conditioned signal, the down converted signal and the sampled signal to produce a narrowband digital signal. A pair of broadband A/D converters convert at least one of the conditioned signal, the down converted signal and the sampled signal to produce a broadband digital signal. Signal processing logic selectively performs digital signal processing on the broadband digital signal or the narrow band digital signal.||01-26-2012|
|20110206163||DIGITAL SIGNAL CONDITIONING - Methods, systems and other embodiments associated with pre-processing a signal for spectral analysis are presented. A system for pre-processing a digital input signal includes a digital down converter (DDC), an interpolator, and a series of down samplers. The DDC modulates the digital input signal to create a down converted signal. The interpolator re-samples the down converted signal to produce a re-sampled signal. The series of down samplers produces down sampled signals. The multiplexer selects one of the digital input signal, the down converted signal, and the down sampled signals and routes the selected signal to an output line.||08-25-2011|
Patent applications by BAE SYSTEMS NATIONAL SECURITY SOLUTIONS INC.