Signal processing apparatus and signal processing method in wind profiler

摘要

In a wind profiler, the number of acquisition ranges is expanded up to heights where noise is introduced into a received signal, even in the case where noise due to transmit/receive switching is introduced. Provided is a signal processing device (103) in a wind profiler that emits an electromagnetic wave pulse into a space, switches from transmitting to receiving, receives an electromagnetic wave reflected from a target to be observed, and measures wind speed from a Doppler frequency of the received electromagnetic wave, and is equipped with a unnecessary data determiner (10) that detects a noise section in which switching noise occurs due to the switching between transmitting and receiving, and an unnecessary data eraser (3) that converts a received signal in the noise section to substantially insignificant data.