# Radar Range Calculator Radar Range refers to a method of detecting distant objects and determining their position, velocity or other characteristics by analysis of very high frequency radio waves reflected from their surfaces. Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. The radar is used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.
 Transmitted Pulse Peak Power (Pt): Maximum Power Gain of Antenna (G): Antenna Aperture (Ae): Radar Cross Section Area (RMax): Minimum Detectable Signal of Receiver (PMin): Radar Range (RMAX):
Formula
RMax = ( ( Pt *G* S * Ae ) / ( ( 4 * PI)2 * PMin))

Where,
RMax = Radar Range
Pt = Transmitted Pulse Peak Power
G = Maximum Power Gain of Antenna
S = Radar Cross Section Area
Ae = Antenna Aperture
PMin = Minimum Detectable Signal of Receiver

Radar is known to the general public for its use by law enforcement in determining the speeds of motor vehicles. Radar has been used on the high-frequency (HF) radio bands, between approximately 5 MHz and 20 MHz, in an attempt to obtain early warning in the event of a nuclear assault via ballistic missiles.

Example:
Calculate the Radar Range for the given details.
Transmitted Pulse Peak Power (Pt): 25
Maximum Power Gain of Antenna (G): 20
Antenna Aperture (Ae): 15
Radar Cross Section Area (S): 10
Minimum Detectable Signal of Receiver (PMIN): 5

Solution:
Apply Formula:
RMax = ((Pt *G* S * Ae) / ( ( 4 * PI)2 * PMin))
RMax = ((25*20*15*10)/((4*3.14) 2 *5))
RMax = ((75000)/ (12.56) 2*5))
RMax = (75000 /157.75 *5)
RMax = 75000 /788.768
RMax = 95.0849933
Radar Range (RMAX): 95.0849933

Related Calculator           Popular Calculator    