Patent ID: 11879970
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A signal processing apparatus comprising:
a signal processor configured to
find a weather parameter based on a reception signal of a reflected wave of a pulsed transmission wave repeatedly transmitted into a space, a Doppler spectrum derived from the reception signal, and a topographic-echo-removed spectrum resulting from removal of a topographic echo from the Doppler spectrum;
find a first weather echo region based on a weather parameter among weather parameters that is different in behavior between a weather echo and the topographic echo;
find a second weather echo region based on a weather parameter among the weather parameters a behavior of which is not dependent on a Doppler velocity;
determine a weather echo region based on a logical sum of the first weather echo region with the second weather echo region;
provide the weather parameter in a range cell corresponding to the weather echo region determined by the signal processor to reconstruct the weather echo region; and
cause a display to display at least one of the weather parameter and the reconstructed weather echo region.