Abstract: Various embodiments for detecting a high Intensity radiated field (HIRF) in a line replaceable unit are provided. For example, an internal detector includes at least one antenna attached to a chassis. The at least one antenna is configured and dimensioned to pick up an electromagnetic field. The electromagnetic field induces a current in the at least one antenna proportional to a magnitude of the electromagnetic field. The internal detector also includes a circuit configured to generate a DC signal based on the induced current in the at least one antenna and a processing section configured to compare the DC signal with a threshold and output a result of the comparison to a built-in test section. The internal detector may be used to test EMI filter pin connectors of a closed line replaceable unit.

Abstract: Various embodiments for detecting a High Intensity Radiated Field (HIRF) in a Line Replaceable Unit (LRU) are provided. The internal detector may be used to test EMI filter pin connectors of a closed LRU. For example, a method comprises setting a selecting switch to a test connector position, thereby connecting a RF signal generator to a testing connection cable. The method further comprises causing the generator to generate a test signal as input into the testing connection cable, and determining if an internal HIRF detector has detected the signal. If the signal is detected, the method further comprises, for each EMI filter pin connector in the LRU, switching the selecting switch to a corresponding test cable coupled to an EMI filter pin connector, causing the generator to generate the test signal as input into the corresponding test cable; and determining if the detector has detected the signal.

Abstract: Various embodiments for detecting a high Intensity radiated field (HIRF) in a line replaceable unit are provided. For example, an internal detector includes at least one antenna attached to a chassis. The at least one antenna is configured and dimensioned to pick up an electromagnetic field. The electromagnetic field induces a current in the at least one antenna proportional to a magnitude of the electromagnetic field. The internal detector also includes a circuit configured to generate a DC signal based on the induced current in the at least one antenna and a processing section configured to compare the DC signal with a threshold and output a result of the comparison to a built-in test section. The internal detector may be used to test EMI filter pin connectors of a closed line replaceable unit.

Abstract: Various embodiments for detecting a high Intensity radiated field (HIRF) in a line replaceable unit are provided. In an embodiment, the internal detector comprises a receiving means for receiving HIRF and generating an AC signal proportional to the HIRF, an RF filter configured to sample the AC signal to create a DC signal; and a detecting section configured to compare the DC signal with a threshold and output a result of the comparison to a built-in test section. The internal detector may be used to test EMI filter pin connectors of a closed line replaceable unit.

Abstract: Various embodiments for detecting a high Intensity radiated field (HIRF) in a line replaceable unit are provided. In an embodiment, the internal detector comprises a receiving means for receiving HIRF and generating an AC signal proportional to the HIRF, an RF filter configured to sample the AC signal to create a DC signal; and a detecting section configured to compare the DC signal with a threshold and output a result of the comparison to a built-in test section. The internal detector may be used to test EMI filter pin connectors of a closed line replaceable unit.

Abstract: Signals from a source of flight path data, normally a memory device which stores forward-looking radar data, for example, are sampled in "reverse-time". That is, the data points along the flight path are taken in reverse order relative to the direction of flight. By simple circuits, the signals from the flight path data source are modified to conform with the basic criteria of the desired flight and with other desired parameters such as vertical acceleration and velocity limits so that a reverse-time flight simulation is made. The special "inside-out" form of indicia is a pair of bands which are fence-like in appearance and form the vertical sides of a tunnel-like outline, along the vertical center of which is the desired flight path. By generating these bands on a cathode ray oscilloscope with vertical displacements in accordance with the desired flight path and relative vertical widths in perspective with the range, the curved center line is easily followed.