The design and test of a Radar sensor signal acquisition and processing platform is presented in the paper. The Radar sensor operates in real-time and is suited for surveillance applications in transport systems. It includes a front-end with a continuous-wave frequency-modulated transceiver operating in X-band, with a single transmitter and multiple receivers, and a multi-channel high-speed A/D converter. Sensor signal processing and data communication tasks with external hosts are managed by an FPGA (Field Programmable Gate Array). The signal processing chain includes region of interest selection, multi-dimensional FFT (Fast Fourier Transform), peak detection, alarm decision logic, data calibration and diagnostic. By configuring the Radar sensing platform in low-power mode (7 dBm transmitted power) it is possible to detect still and moving targets with a covered range up to 300 m and 30 cm resolution. The measuring range can be increased up to 2 km by adding an extra 34.5 dBm power amplifier. The Radar sensing platform can be configured for a maximum detected speed of 200 km/h, with a resolution of 1.56 km/h, or a speed up to 50 km/h with a resolution of 0.4 km/h. The cross-range resolution depends on the number of receiving channels; a trade-off can be found between cross-range resolution of the Radar sensor and its complexity and power consumption. With respect to the state-of-the-art of surveillance Radar sensors and Lidars, the proposed solution stands for its high configurability, and for the better trade-off that can be found in terms of covered distance and power consumption

Radar sensor signal acquisition and multidimensional FFT processing for surveillance applications in transport systems

SAPONARA, SERGIO
Primo
Writing – Original Draft Preparation
;
NERI, BRUNO
2017-01-01

Abstract

The design and test of a Radar sensor signal acquisition and processing platform is presented in the paper. The Radar sensor operates in real-time and is suited for surveillance applications in transport systems. It includes a front-end with a continuous-wave frequency-modulated transceiver operating in X-band, with a single transmitter and multiple receivers, and a multi-channel high-speed A/D converter. Sensor signal processing and data communication tasks with external hosts are managed by an FPGA (Field Programmable Gate Array). The signal processing chain includes region of interest selection, multi-dimensional FFT (Fast Fourier Transform), peak detection, alarm decision logic, data calibration and diagnostic. By configuring the Radar sensing platform in low-power mode (7 dBm transmitted power) it is possible to detect still and moving targets with a covered range up to 300 m and 30 cm resolution. The measuring range can be increased up to 2 km by adding an extra 34.5 dBm power amplifier. The Radar sensing platform can be configured for a maximum detected speed of 200 km/h, with a resolution of 1.56 km/h, or a speed up to 50 km/h with a resolution of 0.4 km/h. The cross-range resolution depends on the number of receiving channels; a trade-off can be found between cross-range resolution of the Radar sensor and its complexity and power consumption. With respect to the state-of-the-art of surveillance Radar sensors and Lidars, the proposed solution stands for its high configurability, and for the better trade-off that can be found in terms of covered distance and power consumption
2017
Saponara, Sergio; Neri, Bruno
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/811381
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