Álvaro Duque de Quevedo

Universidad Politécnica de Madrid | UPM · Departamento de Señales, Sistemas y Radiocomunicaciones

Unbalances in gain and phase of receiving chains as well as mutual coupling effects among radiating elements degrade the performance in direction of arrival estimations (DOA) in digital array radars (DAR). These effects can be described by an unknown distortion matrix by which the received signals are in fact multiplied. The calibration of the arra...

In the past few years, the commercial use of drones has exploded, since they are a safe and cost‐effective solution for many kinds of problems. However, this fact also opens the door for malicious use. This work presents a novel system able to detect and recognise drones from other targets, allowing the police and security agencies to deal with thi...

This article introduces a new radar architecture, which implements a new signal processing scheme, with applications to the Intelligent Transportation Systems. The proposed solution exploits a well-known problem regarding low range radar systems, the Glint Effect, in order to improve previous results. For that purpose, the presented system is requi...

RAD‐DAR is a frequency‐modulated‐continuous‐wave radar demonstrator, working at X‐band, completely designed and constructed by the authors’ research group following the ubiquitous‐radar concept. After introducing its main hardware and software blocks, with special emphasis to its off‐line signal processing and data processing, this study presents t...

This paper presents a technological demonstrator with traffic applications, which carries out three typical intelligent transportation system (ITS) tasks: traffic flow measurement, speed estimation and vehicles classification. The proposed system is a frequency-modulated continuous wave (FMCW) radar working at 24 GHz, with side-looking installation...