Abstract: A method of calculating a distance between transmitters and receivers with Doppler signals for determining a miss distance of two moving vehicles using the physical phenomenon of the Doppler effect. Said method comprising: emitting a broadcast signal with a transmitter from one among the two moving vehicles and sensing and recording a portion of the broadcast signal with a signal receiver on another among the two moving vehicles, analyzing a received signal over an observation period, calculating a slope characteristic of the received signal over the observation period, and calculating the miss distance between the two moving vehicles based on the slope characteristic. wherein, the observation period comprises a starting time, a time-minimum-distance and an ending time.

Abstract: A system and method is provided for detecting the trajectory of multiple fragments through a conic or cylindrical section, such as the body of a missile. Three or more sensors are placed on the on the body of the object. Each of the sensors is constructed and arranged to measure signals to the sensor at from impacts on one or more locations on the body. The sensor then transmits a signal commiserate with the impact of a fragment thereon. A computer system is also provided to perform necessary calculations and, potentially, record the impact times and locations. When the body of the object is hit by fragments or shrapnel, a signal from one or more of the sensors is sent to the computer system. This operation is performed and constantly updated for all locations where a fragment is detected by one or more of the sensors. Waveforms of the impacts are recorded, but because multiple hits can occur, there can be superposition (or destruction) of the resulting waveform sent to the computer system.

Abstract: A time domain detection system to measure and report on hypervelocity impacts HVI between an interceptor vehicle and a target vehicle. Wherein, said time domain detection system comprises a target vehicle components installed on said target vehicle, a one or more panels arranged on a portion of said target vehicle at a potential HVI locations, and a hit detection system wired into said one or more panels. Said target vehicle components comprise at least said hit detection system, and a lines. Said one or more panels are wired into said hit detection system with said lines. Said hit detection system is configured to communicate with said one or more panels over said lines. Said one or more panels can each comprise a one or more detector panel layers, and a two or more insulator layers.

Abstract: A time domain detection system to measure and report on hypervelocity impacts HVI between an interceptor vehicle and a target vehicle. Wherein, said time domain detection system comprises a target vehicle components installed on said target vehicle, a one or more panels arranged on a portion of said target vehicle at a potential HVI locations, and a hit detection system wired into said one or more panels. Said target vehicle components comprise at least said hit detection system, and a lines. Said one or more panels are wired into said hit detection system with said lines. Said hit detection system is configured to communicate with said one or more panels over said lines. Said one or more panels can each comprise a one or more detector panel layers, and a two or more insulator layers.

Abstract: A system and method is provided for detecting the trajectory of multiple fragments through a conic or cylindrical section, such as the body of a missile. Three or more sensors are placed on the on the body of the object. Each of the sensors is constructed and arranged to measure signals to the sensor at from impacts on one or more locations on the body. The sensor then transmits a signal commiserate with the impact of a fragment thereon. A computer system is also provided to perform necessary calculations and, potentially, record the impact times and locations. When the body of the object is hit by fragments or shrapnel, a signal from one or more of the sensors is sent to the computer system. This operation is performed and constantly updated for all locations where a fragment is detected by one or more of the sensors. Waveforms of the impacts are recorded, but because multiple hits can occur, there can be superposition (or destruction) of the resulting waveform sent to the computer system.

Abstract: An apparatus and method for accurate synchronization with inbound audio data which packets at relatively low sampling rates. By using previously known information such as the time of arrival of the beginning of the data packet, a reference timer in a digital signal processor can be used to calculate a number of samples and/or portions thereof between a beginning reference time and the beginning of a data packet, and then calculate the timing error between the first sample point after the arrival of the data packet and the beginning of the data packet. Using this information, the actual arrival of the data packet can be derived and utilized to very accurately, within very small margins of error, synchronize the beginning of the data packet with the scrambling algorithm used in the receiver.