Tracking Antenna Requirements

 Success metrics

Goal

Metric

Goal

Metric

Able to track in one-axis (yaw)

Visual confirmation of heading, comparison using logging data of antenna angle & drone position.

Able to track in two-axis (pitch/yaw)

Visual confirmation of heading, comparison using logging data of antenna angle & drone position.

Being able to accept different antennas & systems (including relays)

Ability to swap tracking antenna components to use different systems

Able to track for the entire duration of a flight window (long or short).

 

Ability to be anchored / tethered to the ground in adverse weather

 

Short startup / calibration sequence

Timed from cold start.

Weather Resistant

 

Untethered power & system-data input

No wires from the tracking antenna system to the groundstation computer.

 

 

 Assumptions

  • Information input will be in MAVLink format from the groundstation (forwarded out of the groundstation)

  • Antennas will be either:

    • 900 patch

    • 1.3 patch

    • 2.4 yagi (dual)

  • Receivers will either be:

    • RFD900

    • 1.3 block

    • EE Gemini module

  • Some receivers may have relays

  • 5 and 12v power available at the antenna head.

 Requirements

Requirements / Constraints

Context

Priority

Owner

Notes

Requirements / Constraints

Context

Priority

Owner

Notes

Must be able to carry a payload up to 1kg

This would be the heaviest weight of antennas + batteries + relay

HIGHMEDIUM LOW

 Must allow for at least 2 360 degrees in either direction from startup position.

Being able to track the drone if it flies in a circle.

 

 

 Unlikely that we will need to complete multiple circles @ competition.

Must allow for 0-90 degree rotation in pitch

 

 

 

 

Must maintain heading when connection is lost (either gcs → antenna or drone → gcs)

antenna should be in position to re-establish link when the drone follows RTL procedure

 

 

 

Must be able to supply 5v and 12v power.

Common voltages used by onboard devices

 

 

 

One person must be able to setup the system in < 5 minutes

Time & resources on the flight window

 

 

 

Up to 2 primary antennas must be able to track the target simultaneously

Some transmitters use diversity

 

 

 

2 primary antennas must be able to maintain spatial separation of at least 10 centimetres

 

 

 

 

Up to 1 antenna must be able to mounted statically away from the tracking head

e.g. omni antenna

 

 

 

Up to 1 relay system must be able to be mounted statically away from the primary antennas

 

 

 

 

Must accept 3-6s battery power

Common batteries that WARG uses

 

 

 

Must be able to be transported easily and without damage to the equipment.

 

 

 

 

 

 

 

 

 

 Open Questions

Question

Answer

Date Answered

Question

Answer

Date Answered

 

 

 

 Out of Scope

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