Software-based Cancellation of Clutter in the Doppler Spectrum Measured by a Wind Profiler

[摘要] The wind profiler developed by the Communications Research Laboratory and operating at the Okinawa Radio Observatory is a Doppler radar for measuring the vertical profile of the three-dimensional wind vectors from the echo signal scattered by clear air turbulence. Vegetation motion caused by wind, however, will produce signals cluttering the Doppler spectrum and making it difficult to identify the echo signal in the spectrum. A software-based clutter cancellation method was therefore developed, and its effectiveness has been confirmed by comparing the horizontal wind vectors estimated from the clutter-cancelled wind profiler data with those measured from radiosonde.

[学科分类] 大气科学