Hey guys,
I need to be able to determine the direction of a fixed-location transmitted RF carrier signal (in the range of ~350kHz). The signal will be sent by a dummy transmitter beacon - no data sent, no tranceiver for 2-way communication.
My reference point is a mobile robot, which will use the direction of the RF signal to orient it's servomotors toward the signal.
I've seen similar things done with sound waves, but triangulation was used. It's going to be tough, if not impossible, to triangulate an RF signal strictly because of it's speed.
I've also thought about a series of RF power sensors set up in a circle on the robot, to detect the strongest direction of transmission. But power sensors are VERY expensive, from what I've found.
Any other suggestions?
I need to be able to determine the direction of a fixed-location transmitted RF carrier signal (in the range of ~350kHz). The signal will be sent by a dummy transmitter beacon - no data sent, no tranceiver for 2-way communication.
My reference point is a mobile robot, which will use the direction of the RF signal to orient it's servomotors toward the signal.
I've seen similar things done with sound waves, but triangulation was used. It's going to be tough, if not impossible, to triangulate an RF signal strictly because of it's speed.
I've also thought about a series of RF power sensors set up in a circle on the robot, to detect the strongest direction of transmission. But power sensors are VERY expensive, from what I've found.
Any other suggestions?