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For convenience, these figures may also be expressed as 1 nautical mile in 12.4 μs or 1 kilometre in 6.7 μs. (For simplicity, all further discussion will use metric figures.) If the radar pulse width is 1 μs, then there can be no detection of targets closer than about 150 m, because the receiver is blanked.
The size of a target's image on radar is measured by the radar cross section or RCS, often represented by the symbol σ and expressed in square meters. This does not equal geometric area. A perfectly conducting sphere of projected cross sectional area 1 m 2 (i.e. a diameter of 1.13 m) will have an RCS of 1 m 2. For radar wavelengths much less ...
Representation of the peak envelope power (PEP) using the example of an AM-modulated signal. The PEP is the power area shown in red. Peak envelope power (PEP) is the average power over a single radio frequency cycle at the crest of the modulation. This is a Federal Communications Commission definition. PEP is normally considered the occasional ...
Depending on the location of the load and phase of reflection, there might be a peak in the magnitude of V net at x = 1.3 m . Then there would be another peak found where | V net | = V max at x = 6.3 m , whereas it would find minima of the standing wave at x = 3.8 m, 8.8 m, etc.
Military submarine max. rated pressure (est.) of Seawolf-class nuclear submarine, at depth of 500 m [65] [66] 10-21 MPa 1,500–3,000 psi Chamber pressure of a high-powered (non-carbon dioxide) air gun 6.9–27 MPa 1,000–4,000 psi Water spray pressure used by pressure washers [67] 9.2 MPa 1,300 psi Atmosphere of Venus [68] 10 7 Pa
The reduced-smoke motor propelled the missile from the launcher with a barely visible smoke trail, accelerating the missile to 600 mph (970 km/h; 270 m/s) in under 1.5 seconds. [7] On 12 April 2006, the Spike was launched at a 2-meter diameter target from 1,000 meters, impacting 8 in (200 mm) from the center. [8] In May 2007, the Spike was ...
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