boinor.core.sensors

module containing functions related to sensors in the core sub-package

Functions

min_and_max_ground_range(h, eta_fov, eta_center, R)	Calculates the minimum and maximum values of ground-range angles.
ground_range_diff_at_azimuth(h, eta_fov, eta_center, ...)	Calculates the difference in ground-range angles from the eta_center angle and the latitude and longitude of the target

Module Contents

boinor.core.sensors.min_and_max_ground_range(h, eta_fov, eta_center, R)

Calculates the minimum and maximum values of ground-range angles.

Parameters:

• h (float) – Altitude over surface.

• eta_fov (float) – Angle of the total area that a sensor can observe.

• eta_center (float) – Center boresight angle.

• R (float) – Attractor equatorial radius.

Returns:

• lambdaBig_min (float) – Minimum value of latitude and longitude.

• lambdaBig_max (float) – Maximum value of latitude and longitude.

Notes

For further information, please take a look at Vallado [Val13], pages 853-860.

boinor.core.sensors.ground_range_diff_at_azimuth(h, eta_fov, eta_center, beta, phi_nadir, lambda_nadir, R)

Calculates the difference in ground-range angles from the eta_center angle and the latitude and longitude of the target for a desired phase angle, beta, used to specify where the sensor is looking.

Parameters:

• h (float) – Altitude over surface.

• eta_fov (float) – Angle of the total area that a sensor can observe.

• eta_center (float) – Center boresight angle.

• beta (float) – Phase angle, used to specify where the sensor is looking.

• phi_nadir (float) – Latitude angle of nadir point.

• lambda_nadir (float) – Longitude angle of nadir point.

• R (float) – Earth equatorial radius.

Returns:

• delta_lambda (float) – The difference in ground-range angles from the eta_center angle.

• phi_tgt (float) – Latitude angle of the target point.

• lambda_tgt (float) – Longitude angle of the target point.

Notes

For further information, please take a look at Vallado [Val13], pages 853-860.