Editing Low-probability-of-intercept radar (section)

==Methods==
Ways of reducing the profile of a radar include using wider bandwidth ([[wideband]], [[Ultra-wideband]]), [[frequency hopping]], using [[FMCW]], and using only the minimum power required for the task. Using [[pulse compression]] also reduces the probability of detection, since the peak transmitted power is lower while the range and resolution is the same.

Constructing a radar so as to emit minimal side and back lobes may also reduce the probability of interception when it is not pointing at the radar warning receiver. However, when the radar is sweeping a large volume of space for targets, it is likely that the main lobe will repeatedly be pointing at the RWR. Modern [[phased-array]] radars not only control their [[side lobe]]s, they also use very thin, fast-moving beams of energy in complicated search patterns. This technique may be enough to confuse the RWR so it does not recognize the radar as a threat, even if the signal itself is detected.

In addition to stealth considerations, reducing side and back lobes is desirable as it makes the radar more difficult to characterise. This can increase the difficulty in determining which type it is (concealing information about the carrying platform) and make it much harder to [[radar jamming and deception|jam]].

Systems that feature LPIR include modern [[active electronically scanned array]] (AESA) radars such as that on the [[F/A-18E/F Super Hornet]] and the [[passive electronically scanned array]] (PESA) radar on the [[SA-10 Grumble|S-300PMU-2]] [[surface-to-air missile]] system.