radar horizon
61Cymbeline (radar) — Radar, Field Artillery, No 15, better known as Cymbeline, was a widely used British mortar locating radar[1] operating in the I band using a Foster scanner. It was developed by Thorn EMI and was in British service from 1975 until about 2003 with… …
62Horizon (physique) — Pour les articles homonymes, voir Horizon. Horizon (graphique) L’horizon est un concept physique simple qui recouvre en fait plusieurs significations possible …
63radar transhorizon — transhorizontinio aptikimo radaras statusas T sritis radioelektronika atitikmenys: angl. over the horizon radar; trans horizon radar vok. Transhorizontradar, n rus. загоризонтная радиолокационная станция, f pranc. radar transhorizon, m …
64Radar SCR-268 — Pour les articles homonymes, voir SCR. Un SCR 268 à Guadalcanal en août 1942 Le radar SCR 268 (pour Signal Corps Radio no 268) était le premier …
65Counter-battery radar — Israeli Shilem counter battery radar A counter battery radar detects artillery projectiles fired by one or more guns, howitzers, mortars and rocket launchers and from their trajectories locates the position on the ground of the gun, etc., that… …
66Fire-control radar — A fire control radar is a radar which is designed specifically to provide information (mainly target azimuth, elevation, range and velocity) to a fire control system in order to calculate a firing solution (i.e. information on how to direct… …
67Indian Doppler Radar — The Indian Doppler Radar (INDRA) series of 2D radars were developed by India s DRDO for the Army and Air Force. The INDRA I is a is a mobile surveillance radar for low level target detection while the INDRA II is for ground controlled… …
68under the radar — Flights by aircraft as low as possible to avoid being picked up by hostile radar. Normally, this would mean flying below the radar horizon. However, anomalous propagation can provide gaps in radar coverage. These gaps, if known, are the best… …
69radio horizon — The locus of points at which rays from a radio transmitter become tangential to the earth’s surface; it depends on the refractive index of the atmosphere. See radar horizon …
70Over-the-horizon radar — Radar trans horizon Un radar trans horizon, ou Over the horizon radar (OTH) est un équipement radar qui permet le repérage d une cible à très longue distance, de l ordre de quelques milliers de kilomètres. Sommaire 1 Principe de fonctionnement 2… …
