sector scan


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sector scan

[′sek·tər ‚skan]
(electronics)
A radar scan through a limited angle, as distinguished from complete rotation.

sector scan

sector scan
Sector scan.
sector scanclick for a larger image
Sectional aeronautical charts.
sector scan
A scan pattern in which the radar beam is made to rotate in the horizontal plane about the transmitter through a selected angle. This pattern is used in fire control, airborne interception, and the precision approach radars.
sector search
i. A method of searching for a ground target in a given sector. This method is used when the area of search is restricted. If the area is bigger, the creeping-line-ahead search method is used for the outer zone, whereas the sector search is used for the inner zone. The method involves flying along a radial and returning to base along a slightly different radial. The distance between the two radials, at the farthest place, is determined by the sweep width.
ii. Searching for an aerial target in a given sector. The radar aerial in this case looks and transmits within the given sector.
References in periodicals archive ?
As shown in Figure 6, the EW receiver will observe a scan pattern similar to the sector scan of the TWS radar, but the peak amplitude of the main beam will vary with the elevation of each scan relative to the receiver's location.
In agribusiness, the team will conduct a sector scan to identify the promising subsectors and support the GoO in addressing upstream policy constraints and marketing the states strengths.
The radar makes use of Doppler processing while its MTI facility features automatic target tracking and sector scan.