Patent ID: 9739866
Date: 2017-08-22
CPC Classifications: G01S

Claim:
1. An apparatus for radio direction finding, the apparatus comprising: a receiver that receives target signals acquired by a wideband antenna array in which the wideband antenna array comprises antenna elements; a channel profiler for producing profiles of the target signals for each antenna element in the wideband antenna array received through the receiver by forming space channels, extracting signal information from the space channels, and producing the profiles from the extracted signal information wherein the profiles are selected from the group consisting of time, frequency, space information, kind, statistical characteristic, and shape; a pre-analyzer to preemptively process in a narrowband the target signals based on the profiles that are produced by the channel profiler to produce pre-analyzed information for the target signals in which the pre-analyzed information is selected from the group consisting of a center frequency, a bandwidth, an existence time, an existence space, a signal detection statistical property, and a signal-specific characteristic; and a direction finder that performs the direction finding on the signal sources using the pre-analyzed information and the profiles of the target signals.