ESTIMATING WEATHER AND GROUND REFLECTIVITY WITH DOPPLER SPECTRAL INFORMATION

摘要

Systems, methods, and devices for processing a radar return signal to estimate reflectivity values. An example weather radar system includes one or more antennas configured to transmit a radar signal generated by a transmitter and deliver a radar return signal to a receiver. The example weather radar system further includes one or more processors configured to sample the radar return signal, determine a first signal power measurement of the sampled radar return signal based on Doppler signal processing, determine a quality of the first signal power measurement, and estimate reflectivity values of the sampled radar return signal based on the first signal power measurement when the quality is above a threshold. The example weather radar system further includes memory configured to store the estimated reflectivity values.

主权项

1. A weather radar system comprising:
one or more antennas, wherein the one or more antennas are configured to:
transmit a radar signal generated by a transmitter; anddeliver a radar return signal of the transmitted radar signal to a receiver; and one or more processors configured to:
sample the radar return signal at a periodic sample rate, wherein timing of the periodic sample rate following transmission of the radar signal corresponds to a range bin;determine a first signal power measurement of the sampled radar return signal of the first range bin based on Doppler signal processing, wherein the first signal power measurement comprises at least one of a ground signal power component or a weather signal power component;determine a quality of the first signal power measurement; andestimate reflectivity values of the sampled radar return signal of the first range bin based on the first signal power measurement when the quality is above a threshold; and memory, wherein the memory is configured to store the estimated reflectivity values.