DIS Data Dictionary - PDU Data

Current standard: IEEE 1278.1

Beam Antenna Pattern Record Record

Size: 256
Description: The Antenna Pattern Parameters field shall be Beam Antenna Pattern when the Antenna Pattern Type field has a value of 1. This record specifies the direction, pattern, and polarization of radiation from a radio transmitter's antenna. The radiation pattern produced by the antenna is defined with respect to a Beam Coordinate system. The Beam Coordinate system is a right handed Cartesian coordinate system with the center of the beam along the x axis of the system (See Figure 20). In the Transmitter PDU, the origin of the beam coordinate system is specified by the Antenna Location record. The Beam Antenna Pattern Record contains the following fields:

Record Components:

Item Name	Bit Length	Opt	Opt Ctl	Rpt	Rpt Ctl
Beam Direction Record	96
Azimuth Beamwidth Field	32
Elevation Beamwidth field	32
Reference System Field	8
Padding - 24bit Field	24
Ez field	32
Ex field	32
Phase field	32

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