passive surveillance
1Passive radar — systems (also referred to as passive coherent location and passive covert radar) encompass a class of radar systems that detect and track objects by processing reflections from non cooperative sources of illumination in the environment, such as… …
2Surveillance) — Surveillance La surveillance est la fonction d’observer les activités de personnes ou groupes. Dans le domaine purement technique, on parle aussi de supervision ou de monitoring. La surveillance peut être secrète ou évidente. Celle ci a toujours… …
3Surveillance Towed Array Sensor System — The AN/UQQ 2 Surveillance Towed Array Sensor System (SURTASS) is a towed array sonar system of the United States Navy.SURTASS systems developed in the 1980s were deployed on Stalwart class ocean surveillance ships and were passive, receive only… …
4surveillance — The balance of surveillance has shifted markedly in recent years from state to civil society. With the decline of the ‘cold war’, state surveillance has declined somewhat and is now lawfully restricted only to activities that have a subversive …
5Surveillance — La surveillance est la fonction d’observer les activités de personnes ou groupes d individus. Dans le domaine purement technique, on parle aussi de supervision ou de monitoring. La surveillance peut être secrète ou évidente. Celle ci a toujours… …
6Surveillance RF — Mode moniteur Pour les articles homonymes, voir Mode moniteur (homonymie). Le mode moniteur (aussi appelé Radio Frequency Monitoring, RF Monitor, rfmon, RFMON, Air Monitor, Network Monitor, NetMon, ou encore surveillance RF) permet à un… …
7passive — In surveillance, an adjective applied to actions or equipments which emit no energy capable of being detected …
8passive radar — noun A receive only radar that uses ambient radio signals for search, tracking, surveillance, identification, guidance and mapping …
9Epidemiological surveillance — is the discipline of continuously gathering, analysing, and interpreting data about diseases, and disseminating conclusions of the analyses to relevant organisations. As such, it is a key element in epidemiology.Surveillance may be active or… …
10United States Space Surveillance Network — Space surveillance is a critical part of United States Strategic Command s (USSTRATCOM) mission and involves detecting, tracking, cataloging and identifying man made objects orbiting Earth, i.e. active/inactive satellites, spent rocket bodies, or …
