conical spiral antenna

См. также в других словарях:

• Conical scanning — is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at a target. Conical scanning is similar in concept to the earlier lobe switching concept used on some of the… …   Wikipedia

• Cone — This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article …   Wikipedia

• 9K33 Osa — SA 8 redirects here. For the Apollo flight, see A 104 (SA 8). 9K33 Osa (NATO reporting name: SA 8 Gecko) 9K33 OSA transporter erector launcher and radar(TELAR) …   Wikipedia

• scanning — In radar, the motion of the radar antenna assembly when searching for targets. Scanning usually follows a systematic pattern involving one or more of the following: i. In horizontal scanning (or search lighting), the antenna is continuously… …   Aviation dictionary

• Onychophora — Temporal range: 40–0 Ma …   Wikipedia

• Velvet worm — Taxobox name = Onychophora fossil range = Cambrian – Recent image width = 250px image caption = Velvet worm regnum = Animalia phylum = Onychophora phylum authority = Grube, 1853 subdivision ranks = Extant families subdivision = Peripatidae… …   Wikipedia

• Nikola Tesla — Tesla, aged 37, 1893, photo by Sar …   Wikipedia

• Cosmic Background Explorer — (COBE) General information NSSDC ID 1989 089A Organization NASA …   Wikipedia

• Boilerplate (rocketry) — The term boilerplate in rocketry refers to a non functional craft, system, or payload which is used to test various configurations and basic size, load, and handling characteristics. It is far less expensive to build multiple, full scale, non… …   Wikipedia

• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium