Binghui Wang

Title:  Height ambiguity, foe or friend ?

Abstract:  Incoherent scatter radars (ISR) can be used to estimate key ionospheric state parameters. Different types of radar pulsing techniques can be chosen to establish some type of a compromise between height and frequency resolution. Typically in long pulse mode, there is a range smearing problem caused by superposition of multiple returns. Many techniques have been invented to resolve the height ambiguity in order to increase the height resolution, however, when the signal to noise ratio is low such as in topside, one has to utilize the range smearing in order to achieve better statistics in the estimation. We hate the range smearing, yet we have to sometimes cooperate with it. In this presentation, a review of basic signal processing in radar is provided, and range smearing problem is then explained. A new approach of utilizing the range smearing is discussed, together with preliminary results of the estimation using the new approach based on data collected from Arecibo.   

Bio: Mr. Wang studies the theory of Incoherent Scatter Radar, and employs ISR data to detect and estimate plasma properties ionosphere. His research focus is on the development of data processing techniques that can accommodate unprecedented resolution and high efficiency.  Through his academic career, Binghui has been a dedicated Teaching Assistant since 2016. In recognition to his outstanding teaching record, he has received the “Excellence in Undergraduate Teaching” award in 2019, and has been selected as one of the Mavis Future Faculty Fellows in 2020. Recently, Mr. Wang has developed a new laboratory manual for the Analog Signal Processing course at UIUC (ECE 210) to further aid student’s remote learning during the COVID pandemic, which further demonstrates his dedication to teaching. In his spare time, Binghui enjoys traveling, learning new languages, and figure skating.