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Boomerang, a gunfire locator, being used by British forces in Afghanistan Shooting Detector Diagram. A gunfire locator or gunshot detection system is a system that detects and conveys the location of gunfire or other weapon fire using acoustic, vibration, optical, or potentially other types of sensors, as well as a combination of such sensors.
Above Deck Sensor Unit (ADSU) – Stabilized two-axis director with a daylight imaging sensor, a thermal imaging sensor, and a laser rangefinder. [7] Control and Display Unit (CDU) – Located in the CIC, it provides the display feed from the OSS sensors and is used to operate the OSS.
AN/TPQ-37 Firefinder radar. Hughes AN/TPQ-37 Firefinder Weapon Locating System [1] is a mobile radar system developed in the late 1970s by Hughes Aircraft Company, achieving Initial Operational Capability in 1980 and full deployment in 1984.
A laser warning receiver is a warning system used as a passive military defence. It detects, analyzes, and locates directions of laser emissions [1] from laser guidance systems and laser rangefinders.
2200, 2300, 2400 US: Non-discrete code assignments in accordance with FAA Order JO 7110.65, 5-2. US: Also for use in oceanic airspace unless another code is assigned by ATC. [3] US: External ARTCC subsets. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 2500, 2600, 2700 US
Figure 2: Example of An Artillery Location Problem. Assume that two time delays are measured (assume speed of sound ≈ {\displaystyle \approx } 330 meters per second). Microphone 1 to Microphone 2 time delay: 0.455 s ⇒ {\displaystyle \Rightarrow } r 2 = 150 {\displaystyle r_{2}=150} meters
Although the rough location could be found by spinning the control rapidly, for more accurate measurements the operator had to "hunt" with increasingly small movements. With periodic signals like Morse code, or signals on the fringe of reception, this was a difficult process. Fix times on the order of one minute were commonly quoted.
Fault detection, isolation, and recovery (FDIR) is a subfield of control engineering which concerns itself with monitoring a system, identifying when a fault has occurred, and pinpointing the type of fault and its location. Two approaches can be distinguished: A direct pattern recognition of sensor readings that indicate a fault and an analysis ...