AzimuthRangeModel

Azimuth and range measurement model

Since R2025a

Description

An AzimuthRangeModel object contains a measurement model that measures azimuth angle and range to the target. The measurement convention is: measurement = [azimuth;range]. You can use this model to define the measurement model for a CustomSensor object. The units for angles are in degrees.

Creation

To create an AzimuthRangeModel object, use the sensorMeasurementModel function with the "azimuth-range" input argument. For example:

measurementModel = sensorMeasurementModel("azimuth-range")

Properties

OriginPosition — Position of sensor with respect to target state reference frame

[0;0;0] (default) | 3-by-1 real column vector | 3-by-N real matrix

Position of the sensor with respect to the target state reference frame, specified as a 3-by-1 real column vector or a 3-by-N real matrix. Units are in meters.

• When specified as a 3-by-1 real column vector, OriginPosition takes the form [x;y;z].

• When specified as a 3-by-N real matrix, OriginPosition represents sequential frames. For example, if the sensor is mounted on a tower, and you know both the sensor's mounting position relative to the tower and the tower's position relative to the target frame, you can specify OriginPosition as [sensorMounting towerPosition], where sensorMounting is the sensor's mounting position relative to the tower and towerPosition is the tower's position relative to the target state's reference frame. The number of the frame, N, must be consistent across the OriginPosition and Orientation properties.

Example: [15 20 40]

Orientation — Orientation of sensor with respect to target state reference frame

eye(3) (default) | 3-by-3 real matrix | 3-by-3-by-N real matrix

Orientation of the sensor with respect to the target state reference frame, specified as a 3-by-3 real matrix or a 3-by-3-by-N real matrix. Units are in degrees.

• When specified as a 3-by-3 real matrix, the Orientation represents the sensor's orientation relative to the target state reference frame.

• When specified as a 3-by-3-by-N real matrix, the Orientation represents sequential frames. For example, if the sensor is mounted on a tower, and you know both the sensor's mounting orientation relative to the tower and the tower's orientation relative to the target frame, you can specify Orientation as cat(3,sensorMountingOrientation,towerOrientation), where sensorMountingOrientation is the sensor's orientation relative to the tower and towerOrientation is the tower's orientation relative to the target state's reference frame. The number of the frame, N, must be consistent across the OriginPosition and Orientation properties.

AzimuthVariance — Variance of error in azimuth measurement

1 (default) | scalar

Variance of error in the azimuth measurement, specified as a scalar. Units are in degrees squared.

Example: 2

RangeVariance — Variance of error in range measurement

1 (default) | scalar

Variance of error in the range measurement, specified as a scalar. Units are in meters squared.

Example: 2

Version History

Introduced in R2025a