With pulse methods, the frequencies are excited over a wide band, the extent of which varies inversely with the pulse length; this allows multi-frequency operation.
22.
The " PRI ", in turn, will limit the maximum continuous swath width in slant range, which is only slightly influenced by the uncompressed transmitted pulse length \ tau.
23.
FROG is currently the standard technique for measuring ultrashort laser pulses, and also popular, replacing an older method called autocorrelation, which only gave a rough estimate for the pulse length.
24.
Subsequently, excellent control got established on tokamak plasma performance by controlling the plasma-wall interaction processes at the plasma boundary so the plasma duration was limited primarily by the ` transformer pulse length '.
25.
The depth over which the laser energy is absorbed, and thus the amount of material removed by a single laser pulse, depends on the material's optical properties and the laser wavelength and pulse length.
26.
The vertical range of sodars is approximately 0.2 to 2 kilometers ( km ) and is a function of frequency, power output, atmospheric stability, turbulence, and, most importantly, the pulse length and maximum altitude.
27.
Successfully tested in July 1940, this set operated at 200 MHz ( 1.5 m ), had a 1 kW output with a pulse length of 0.5 ?s, and used a relatively small, fixed antenna.
28.
The pulse length can vary from 0.4 to 2.5 microseconds and its peak power is 350 kW . ARMOR's antenna is 3.7m, or 12 feet, in diameter, and it's typical PRF ranges from 250-2000 Hz.
29.
The Dnestr-M included many improvements over the previous versions such as an increase in the pulse length from 200?s to 800?s which increased the range of objects identified, more semiconductors, and many other scanning and processing changes.
30.
This data was made available to the aircraft tactical computer in the AQS-13F . The various functions were selectable by the operator, such as pulse lengths, range scales and other modes to enhance operations for the particular conditions.
