Abstract: A Link 16 radio receiving system includes a first antenna, a second antenna, a combiner and a rake receiver. The combiner is coupled to the first antenna and the second antenna. The combiner provides a combined signal. The rake receiver is coupled to the combiner to receive the combined signal.

Abstract: A joint tactical radio system (JTRS) software computer architecture (SCA) apparatus that implements services for a waveform application by reducing latency in middleware and the operating system such that more power efficient processors can be used. The apparatus includes an object request broker that marshals data from the waveform application for communication and an object request broker interface that communicates the marshaled data using a memory pool and select functions of an Operating System. At least a portion of the object request broker is implemented in hardware and at least a portion of the object request broker interface is implemented in hardware and at least a portion of the Operating System is implemented in hardware.

Abstract: A virtual channel communications system assigns RF resources to communications waveforms for transmitting and receiving signals. The communications system comprises universal transceivers for generating and processing the signals. The universal transceivers comprise translators for translating baseband transmit signals to RF transmit signals and RF receive signals to baseband receive signals and digital signal processors for generating the communications waveforms and processing baseband receive and transmit signals. An inter-transceiver communications bus connected to the translators and the digital signal processors communicates between the universal transceivers. The communications bus interconnects digital signal processors in any universal transceiver to a translator in any universal transceiver. Universal power amplifiers are connected to the universal transceivers to amplify the RF transmit signals.

Abstract: An antenna for a military ground vehicle having a radio includes a whip element and a base plate attached to the whip element. The base plate has a first set of dimensions. The antenna also includes an antenna adapter that is attached to the base plate. The antenna adapter has a housing having a second set of dimensions and a filter circuit coupled to the whip element and the radio. The filter circuit is configured to tune the frequency of the antenna. Alternatively, the filter circuit may be disposed within an antenna mount used to mount the antenna to a vehicle.

Abstract: A method of utilizing communication channel resources between nodes in a network of nodes is provided. Communication between a set of nodes in a communication network uses a time division multiple access protocol that includes a plurality of time slots. A set of time slots is allocated from the plurality of time slots to a first node of the set of nodes for transmission of a communication signal. At the first node, a time slot of the allocated set of time slots is identified that is no longer needed for transmission of the communication signal. Instead, the first node tunes to a network synchronization frequency during the identified time slot and receives a synchronization signal transmitted by a second node. The second node is not one of the set of nodes in the communication network. The first node synchronizes with the second node using the synchronization signal thereby allowing communication between the second node and the set of nodes.

Abstract: A universal power amplifier for amplifying and filtering transmit and receive signals has an input switch for switching transmit and receive signals. Transmit paths in the universal power amplifier are connected to the input switch. The transmit paths comprise filters for filtering the transmit signals and amplifiers for amplifying the transmit signals. Receive paths are connected to the input switch. The receive paths filter and amplify the receive signals. A first receive path shares one of the filters a first transmit path to filter a receive signal. A power output stage is connected to the transmit paths for amplifying the transmit signals into high-power transmit signals. A transmit/receive switch is connected to the power output stage and the receive paths for switching the high-power transmit signals and receive signals to an antenna.

Abstract: A method of allocating communication resources among nodes in a network is provided. Communication among the nodes uses a time division multiple access protocol that includes a plurality of time slots. After identifying and synchronizing with a first communication node, a search algorithm is executed. The search algorithm allocates one or more time slot of the plurality of time slots to communicate control information with the identified first communication node and allocates the remaining time slots of the plurality of time slots to identification of a second communication node. Upon identification of and synchronization with the second communication node, a merged network is formed. Execution of the search algorithm continues until a desired confidence level is achieved. The confidence level estimates the likelihood that another communication node capable of communication with the network has not been identified.

Abstract: The communication system utilizes transmitters that provide communication transmissions having deterministic data. Receivers of the system have the digital processing capability for correlating received transmission reflections of the deterministic data amongst the receivers, the reflections of the deterministic data being from objects within the transmission range of a respective transmitter. The correlating includes utilizing relatively weak multipath signals of the transmission reflections and the superimposition of external data therewith to provide a resulting data base of range reflections. The range reflections are provided to others of said plurality of receivers for processing to derive the environment and the locations and movements of objects without the use of a specific interrogation signal, thereby providing situational awareness.

Abstract: A modular radio includes a chassis holding a network infosec unit module; a power amplifier module; and at least one transceiver module. Each of the modules include a separate housing and is removable and replaceable. The modules communicate via a bus and are reconfigurable along the bus. The transceivers support a channel that may be reprogrammable by the network interface.

Abstract: A modular radio includes a chassis holding a network infosec unit module; a power amplifier module; and at least one transceiver module. Each of the modules include a separate housing and is removable and replaceable. The modules communicate via a bus and are reconfigurable along the bus. The transceivers support a channel that may be reprogrammable by the network interface.

Abstract: A power supply with a shunt voltage regulator for controlling unwanted emissions of “red” information which includes a feedback loop to reduce input voltages so as to reduce unnecessary power dissipation, where the feedback loop includes a sensed power consumption signal and a low pass filter to remove any “red” information from the sensed power consumption signal.

Abstract: A system and method of processing wireless signal of data pulses or packets in a communicator system, in which a coded signal is received, synchronized and a histogram of signal parameters is constructed within the receiver at regular intervals. The date in the histogram is then compared to expected values for e given parameter and an appropriate correction factor is generated and utilized in subsequent signal synchronization.

Abstract: A method of processing wireless signal of data pulses or packets in a communication system, in which a portion of the data pulses in an individual signal are utilized to determine a rate of time shift for eliminating or minimizing the effects of Doppler shift in the intra-data pulse processing. One embodiment of the invention provides a method of utilizing the time refinement section of a JTIDS waveform for the purpose of determining an intra-burst data correction factor based upon the average shift of the midpoint of the sampled time refinement section pulses.

Abstract: A system for receiving, correlating and interpreting secured wireless transmissions, periodic or otherwise, including multiplexed receivers, robust correlator design, a state machine device for controlling the receivers and correlation function, and the ability to determine signal spatial diversity via switched antenna signal processing. The correlator is constructed to include a synchronization scheme adaptive to any variety of input signals from the coupled receiver tuned frequencies.

Abstract: An apparatus and method of processing transmitted signals through the use of correlator means and RAM means thereby accomplishing synchronization and data interpretation. Specifically, a plurality of correlators are coupled to RAM means which cooperate to store and subsequently read transmitted data. Clocking means used in conjunction with a programmed delay period provides segments of the received and stored data to a plurality of correlators and on to logic means for further processing.