Mission description

0726-EX-PL-2014 Text Documents

Raytheon Integrated Defense Systems

2014-10-13ELS_154491

          AESA Radar Experimental License Request for Railgun



1. Purpose of Operation
During Railgun Exercise Raytheon will Participate in Navy High Velocity Projectile flight tests in
order to provide X Band sensor data to be used for the maturation of the Railgun program
sensor fusion algorithm."conduct testing and developing definitions of Vertical Scan Type,
Vertical Scan Speed, and Vertical Scan Rate as applied to this antenna with software adapted
electronic beam scanning. The basic operation of the antenna is mechanical rotation in azimuth,
at a selectable 20 rpm or 30 rpm. In addition, the antenna beam can be scanned in azimuth
electronically over +/- 45 degrees from its instant physical position. The antenna beam can be
electronically scanned in elevation from – 10 degrees to + 55 degrees.
Electronic scanning can take place to any angle within the azimuth and elevation limits
from one transmission dwell to the next. Each dwell transmitted at one beam position
lasts for time durations in the region from 0.7 to 4 milliseconds, and the transition to the
next dwell at any other azimuth/elevation position is 10 microseconds. So, the maximum
scan speed could be 90 degrees per 10 microseconds.

                             Files Number: 0726-EX-Pl-2014
                             _ Class of Station: FIXED
                             _ Station Location: FIXED
                             _ Effective Date: 11/17/2014
                             _ Expiration Date: 11/16/2015

2. Experimental Explanations
During Railgun Exercise Raytheon will conduct developmental testing and evaluation on the
radar system Most of the time, programmed search scanning is within the vertical region of 0 to
15 degrees, covering a vertical sector of sequential beams in about 13 milliseconds. Search
scanning is interrupted by individual beams placed anywhere within the electronic scan
volume as necessary to maintain track on previously detected aircraft or projectiles



Document Created: 2014-10-13 15:01:01
Document Modified: 2014-10-13 15:01:01

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