An apparatus for determining location information associated with a source of radiation includes a generator configured to emit a pattern of radiation in response to radiation received from the source, and a radiation pattern sensor disposed in a substantially fixed orientation relative to the generator to sense the emitted pattern of radiation. The pattern of radiation has a least one intensity maximum characterized by a position that indicates a bearing of the source of radiation. A related method includes receiving radiation from a source of radiation, generating a pattern of radiation, and extracting data associated with the angular bearing of the source.