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. The Wuhan mesosphere–stratosphere–troposphere (MST) radar is a 53.8 MHz monostatic Dopplerradar, located in Chongyang, Hubei Province, China, and has the capabilityto observe the dynamics of the mesosphere–stratosphere–troposphere region inthe subtropical latitudes. The radar system has an antenna array of 576 Yagiantennas, and the maximum peak power is 172 kW. The Wuhan MST radar isefficient and cost-effective and employs more simplified and more flexiblearchitecture. It includes 24 big transmitter–receiver (TR) modules, and the row or column data port ofeach big TR module connects 24 small TR modules via the correspondingrow or column feeding network. Each antenna is driven by a small TR module withpeak output power of 300 W. The arrangement of the antenna field, thefunctions of the timing signals, the structure of the TR modules, and theclutter suppression procedure are described in detail in this paper. Wecompared the MST radar observation results with other instruments andrelated models in the whole MST region for validation. Firstly, we made acomparison of the horizontal winds in the troposphere and low stratosphere observed by the Wuhan MST radar with the radiosonde on 22 May 2016, as wellas with the ERA-Interim data sets (2016 and 2017) in the long term. Then, we madea comparison of the observed horizontal winds in the mesosphere with themeteor radar and the Horizontal Wind Model 14 (HWM-14) model in the same way. In general, goodagreements can be obtained, and this indicates that the Wuhan MST is aneffective tool to measure the three-dimensional wind fields of the MSTregion.

Wuhan MST radar: technical features and validation of wind observations