Abstract: A system and method of displaying an indication of a hazard associated on an aircraft display in an avionics system provides first radar pulses at a first pulse repetition frequency or having a first compression signature or carrier frequency. The system and method also provides second radar pulses at a second pulse repetition frequency higher than the first pulse repetition frequency or having a second compression signature or carrier frequency. The system and method receive radar returns associated with the first radar pulses and the second radar pulses and provide a turbulence assessment in response to the radar returns.

Abstract: The present invention is a method and system to mitigate emulator spoofer signals. In an embodiment of the invention, the system of the present invention may be a navigational receiver which may acquire authentic signals in the presence of spoofer signals whereby the authentic navigational signals may be processed to determine a correct position of the receiver. The receiver of the present invention may execute a mitigation method of the present invention whereby characteristics of pairs of signals of received signals may be determined. The mitigation method may also include selection of an authentic signal based upon the characteristics of signal pairs. Characteristics of signal pairs may include relative amplitude, phase and frequency.

Abstract: An improved micro architectural approach for a network microprocessor has low power consumption, and employs two specialized processing cores, a MAC processing core and a network processor core. Each of these processing cores has facilities designed for a specific set of functions, to handle ISO layer 2 and layer 3 functionality in a packet switched Software Defined Radio mobile network.

Abstract: A dual-band stacked electromagnetic band gap (EBG) electronically scanned array (ESA) has a high-frequency aperture stacked on a low-frequency aperture. The high-frequency aperture looks through the low-frequency aperture. Low-frequency and high-frequency feeds feed the apertures. The low-frequency aperture comprises low-frequency cells with two vertical low-frequency EBG sidewalls and two horizontal metal walls. The high-frequency aperture comprises high-frequency cells with four cells stacked on each of the low-frequency cells. The four high-frequency cells comprise four vertical high-frequency EBG sidewalls, two horizontal metal top and bottom metal walls, and a center horizontal metal wall for operation with the same polarization as the low-frequency aperture. The high-frequency cells may comprise four horizontal high-frequency EBG sidewalls, two vertical left and right metal walls, and a center vertical metal wall for orthogonal polarization.

Abstract: A method and apparatus for improving differential navigation accuracy uses time transfer over a two-way communications link. The communications link transmits an overall time offset between a differential reference station and a remote user. A differential navigation position solution is modified at the remote user with the overall time offset to improve the differential navigation accuracy. A first time offset between a first communications device and a first navigation receiver at the remote user is determined. A second time offset between the first communications device at the remote user and a second communications device at the differential reference station is determined. A third time offset between the second communications device and a second navigation receiver at the differential reference station is determined. An overall time offset from the first time offset, the second time offset, and the third time offset is computed and used to improve the differential navigation accuracy.

Abstract: A system for optimizing an ad-hoc network. The system includes a plurality of nodes, wherein each node includes a computer implemented application configured to determine whether the present node is a link node such that the present node is the only node connecting at least one pair of nodes in the ad-hoc network, determine a connection number for the present node, wherein the connection number is the number of pairs of nodes connected by the present node not including pairs of nodes connected by link nodes, and determine whether the present node should be classified as an artery node based on the link node and connection number classifications.

Abstract: A method of selecting linked metric measurements from at least one of open loop and closed loop measurements is disclosed. The method includes sending by a first node a first radio communication and receiving by a second node the first radio communication over a communication link. The method also includes estimating by a second node dynamics of the communication channel using at least one of the variance and mean deviation of linked metric measurements. The link metric measurements are at least one of symbol error rate (SER), packet error rate (PER), frame error rate (FER), bit error rate (BER), signal to noise ration (SNR), and received signal strength (RSS). The method also includes the use of the above link metric measurements by the second node as Open Loop metrics and the sending back of these metrics to the first node for use a Closed Loop metrics by the first node. The method also includes categorizing the dynamics of the communications channel into one of at least two groups based on the estimate.

Abstract: An aircraft landing and/or taxiing system has a plurality of landing zone, runway, and/or taxiway lights capable of receiving information signals and transmitting optically signals representative of the information signals. A processing system for providing the information signals to the plurality of lights is also used. The system also comprises a sensor tuned to receive light of a specific range of wavelengths, the light being emitted from the lights. Also, a processing system coupled to the sensor and configured with software to interpret signals received by the sensor is used. Program code runs on the processing system. The program code is configured to determine the location of an aircraft on the taxiway based on the light signal received from one or more of the taxiway lights. Also, the aircraft landing and/or taxiing system utilizes modulated lights to provide information pertinent to aircraft landing and/or taxiing operations.

Abstract: A system and method for controlling channel access in a communications system is disclosed. The method and system include providing a data packet to communications queue and determining the priority of the data packet. The method and system also generate a channel occupancy statistic. The channel occupancy statistic is based on the level of activity on a communications channel during a predetermined period. The method and system also compare the channel occupancy statistic to a predetermined threshold. The threshold is based on the priority.

Abstract: A multi-channel radio operating with multiple security levels is disclosed. The multi-channel radio includes more than one input/output. Each of the input/outputs corresponds to a security level. The radio also includes a first common bus coupled to the more than one input/output and a first set of more than one processor coupled to the common bus. Each of the first set of processors corresponds to a security level. Further, the radio includes a second set of more than one processors coupled to the first set of processors and more than one transceiver. Each transceiver is coupled to at least one of the processors of the first set of processors.

Abstract: A circuit for a display used on an aircraft causes the display to display a composite terrain image. The composite terrain image can be formed from first terrain data from a terrain database and second terrain data from a radar system. A display control circuit can generate a display signal for the composite terrain image. The display signal is received by the display. The composite terrain image can be viewed by a pilot.

Abstract: A method and system for analyzing resource needs for a configurable computing system representing the configuration in a tree structure. The tree structure has a plurality of nodes representing stored data. A first set of the nodes comprises childless nodes and a second set of the nodes comprises parent nodes. Each parent node has at least one child node. The method for analyzing comprises the steps of: (a) determining the worst case resource needs of the childless nodes during an execution cycle by evaluating the worst case values of any selected attributes that the childless node may have; (b) determining the worst case resource needs of the parent nodes during an execution cycle; and, (c) recursively applying the rules used for evaluating the worst case resource needs of the individual nodes, above, starting with a root node of the plurality of nodes, to determine the worst case resource needs of the entire tree structure.

Abstract: The present disclosure is directed to a method, apparatus, and system for dividing power. An N-way power divider comprises a power input, a switched transformer, a switched power divider, and plurality of power outputs. The switched power divider is configurable to take input power and provide the power to any of the power outputs (matching the impedance utilizing the switched transformer). An antenna system comprises an input, a reconfigurable switched network operably coupled to the input, and a plurality of antenna elements. The reconfigurable switched network is configurable to provide power from input to any of the plurality of antenna elements. Each element can be provided power, or not provided power with the reconfigurable switch. The reconfigurable switched network is configurable to take in power and transform the impedance of the power to match the impedance of the active antenna elements.

Abstract: The present invention is a system for providing Multiple Independent Levels of Security (MILS) partitioning. The system includes a memory, a bus controller communicatively coupled to the memory via a memory bus, and a MILS controller communicatively coupled to the bus controller via a host-side bus, the MILS controller configured for monitoring and controlling system transactions. The system further includes a plurality of input/output (I/O) devices communicatively coupled to the MILS controller via a plurality of corresponding device-side buses. The system further includes a MILS separation kernel configured for mapping regions of the memory to a plurality of user partitions. Each I/O device included in the plurality of I/O devices is allocated to a partition included in the plurality of partitions and is isolated from MILS separation kernel space. The MILS separation kernel is configured for guaranteeing isolation of the partitions of the memory.

Abstract: An electronic device includes a first silicon-based circuit carrying substrate and a die carried by the first silicon-based circuit carrying substrate. The silicon-based circuit carrying substrate is configured to electrically connect the die to other die. The device may include a second silicon-based circuit carrying substrate. The second silicon circuit carrying substrate may be closely coupled to the first silicon-based circuit carrying substrate. The device may also include a second die carried by the second silicon-based circuit carrying substrate.

Abstract: Described is a method of providing resource allocation for a software defined radio (SDR). The method comprises defining a current time window that is subdivided into sub time intervals, defining a committed time window that is subdivided into sub time intervals, and defining a future time widow that is subdivided into sub time intervals. The method also comprises determining the size of each of the time windows and the size and number of each of the sub time intervals based on the output of a priority arbitration function. Further, the method comprises determining changes in resource allocations in the sub time intervals of the future time window based on system requirements.

Abstract: A self-steering autoplexer for transmitter multicoupling has a linear summer for summing transmit signals at several frequencies. An input demultiplexer uses input diplexers to separate and route the transmit signals by frequency. Amplifiers amplify the separated transmit signals from the input demultiplexer. An output multiplexer uses diplexers to combining the amplified and separated transmit signals into a combined transmit signal for transmission by an antenna. The output multiplexer may have an even multiplexer for combining the transmit signals into even band transmit signals for transmission by an even band antenna and an odd multiplexer for combining the transmit signals into odd band transmit signals for transmission by the antenna. The input diplexers of the input demultiplexer comprise diplexers connected such that the transmit signals are applied to outputs of the diplexers to separate the transmit signals into low and high frequency signals.

Abstract: The present invention is a method for providing hazard alerting for an aircraft via an airborne weather radar system. The method includes performing multiple weather radar scans at various tilt angles via the system and receiving radar returns via a receiver. The returns are stored in a memory of the system and merged with ground clutter suppression algorithms for eliminating ground returns from the stored returns and for creating a weather image based on remaining returns included in the stored returns. The image is provided via a weather radar display of the system, and includes an alert icon and an alert message when a hazard is present within an area proximal to the aircraft and is at or above a severity level threshold. The alert icon and alert message collectively indicate a type, severity level and location of the hazard in azimuth relative to a heading of the aircraft.

Abstract: A method of decimation of a digital image, the digital image represented by a plurality of pixels, is claimed. In the pixel domain, the digital image is divided into a plurality of blocks. Certain ones of the blocks are selectively decimated base upon predetermined criteria. In an embodiment, the chrominance portions of a give pixel block are determined.

Abstract: An integrated airborne broadband data and television system is disclosed. The integrated system includes an aircraft mounted pointable antenna unit. Further, the integrated system includes pointing command electronics providing pointing commands to the antenna unit. The pointing commands are based on requested access to one of data services and television services. Further, the disclosed integrated system includes a processing unit directing signal information to one of a data transmitter receiver and a television signal receiver decoder unit.