Abstract: A front-end signal generator for hardware-in-the-loop simulators of a simulated missile is disclosed. The front-end signal generator is driven by the Digital Scene And Reticle Simulation-Hardware In The Loop (DSARS-HITL) simulator. The simulator utilizes a computer to calculate irradiance on an Electro-Optical/Infrared (EO/IR) detector. The generator converts irradiance values into voltages that are injected into the missile's electronics during simulation. The conversion is done with low latency and a high dynamic range sufficient for hardware-in-the-loop simulation. The generator is capable of emulating laser pulse inputs that would be present during laser-based jammer countermeasures. Computer control of the generator occurs via front-panel-data-port (FPDP).

Abstract: A system and method for launching countermeasures, such as flares and chaff, from an aircraft under attack by a missile. A plurality of countermeasure launchers are mounted preferably on the two sides and tail and nose of the aircraft and communicate with a missile detection and warning system mounted in the aircraft. Based upon the circumstances reported by the warning system, the appropriate countermeasure weapon or weapons are selected and dispensed. The circumstances reported are based upon the angle of elevation and azimuth angle of the approaching missile in relation to the aircraft and distance of the missile from the aircraft. Also, the speed and altitude of the aircraft are utilized in determining the countermeasures applied. The various responses are distinguished by the number and types of countermeasures dispensed, the dispense time of the countermeasures and the particular launcher or launchers used, based upon the type of aircraft being protected.

Abstract: A resonator including a resonator body having a longitudinally extending through hole, an electrically conductive coating formed on the inner and outer surfaces of the resonator and an electrical gap formed by cutting a groove around the circumference of the body. The groove divides the resonator body into a short section and a long section, wherein the short section is used as a conductive pad for attachment to a circuit board.

Abstract: In a Time Division Multiple Access (TDMA) communication network, a central office (CO) provides interactive communication between a service provider and a plurality of user terminals. To synchronize transmissions of the user terminals, a timebase timer in the CO generates modulo N-bit cyclical reference counts as time markers. In a downstream direction to the plurality of user terminals, time marker insertion units in the CO receive both (a) separate digital TDMA transport streams having a predetermined data rate including data packets and Media Access Control (MAC) packets that are interspersed between the data packets at predetermined intervals, and (b) the time markers generated by the timebase timer, and insert a currently received time marker count into a concurrently received MAC packet. The resultant downstream TDMA transport streams with the inserted time marker counts in the MAC packets are transmitted in continuous TDMA output transport stream to the remote user terminals.

Abstract: In a Time Division Multiple Access (TDMA) communication network, a central office (CO) provides interactive communication between a service provider and a plurality of user terminals. To synchronize transmissions of the user terminals, a timebase timer in the CO generates modulo N-bit cyclical reference counts as time markers. In a downstream direction to the plurality of user terminals, time marker insertion units in the CO receive both (a) separate digital TDMA transport streams having a predetermined data rate including data packets and Media Access Control (MAC) packets that are interspersed between the data packets at predetermined intervals, and (b) the time markers generated by the timebase timer, and insert a currently received time marker count into a concurrently received MAC packet. The resultant downstream TDMA transport streams with the inserted time marker counts in the MAC packets are transmitted in continuous TDMA output transport stream to the remote user terminals.