A 24 GHz ISM Band Doppler Radar System for Moving Target Sensing

Kim, Sungpeel; Bang, Jin Ho; Keum, Kyoseung; Choi, Junho; Jung, Kim Hyun; Kim, Dong Kyoo; Kim, Youjin

doi:10.1109/apusncursinrsm.2019.8888788

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…A 24 GHz ISM (industrial, scientific, and medical) band Doppler radar has been applied in many fields, such as weather forecasting, speed detection of vehicles, detection of incoming and outcoming aircrafts, discovery of new planets and stars, and measurement of heartbeat and blood pressure 7‐11 . However, there is no report of 24 GHz Doppler radar for water resource management applications.…”

Section: Introductionmentioning

confidence: 99%

A 24 GHz hydrology radar system capable of wide‐range surface velocity detection for water resource management applications

Lin

Chiu

Chang³

2020

Micro & Optical Tech Letters

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We demonstrate a 24 GHz hydrology radar system. The continuous‐wave Doppler radar is capable of noncontact and wide‐range surface‐flow velocity detection in various scenarios. The radar receives the reflected echo signal through a directional narrow‐beam antenna. After amplification and demodulation by the proposed low‐noise amplifier and the subharmonic down‐conversion mixer, respectively, the Doppler frequency‐shift is analyzed by the digital signal processing (DSP) module for estimation of the water flow velocity. Moreover, for water level detection, a phase‐locked loop with micro control unit (MCU)‐controlled division ratio is included in the RF module for generating a stable and tunable (or frequency modulation) 24‐GHz‐band transmitting signal with low phase noise. To verify the radar system, outdoor field tests have been conducted. The measured results are consistent with the theoretical values, and the results of both the float method and the commercial handheld (Stalker Pro II) surface velocity radar. In the condition of water ripple lower than 3 cm, the radar functions well for flow speed range of 0.3 ~ 34.6 m/s. Overall, the hydrology radar is suitable for surface‐flow velocity detection (especially in bad weather) and water resource management (such as water‐level detection).

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Section: Introductionmentioning

confidence: 99%

A 24 GHz hydrology radar system capable of wide‐range surface velocity detection for water resource management applications

Lin

Chiu

Chang³

2020

Micro & Optical Tech Letters

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“…Measurements were performed at 24 GHz for two polarizations, H-H and V-V. Since 24 GHz is also allocated for ISM band radar systems [8], the results obtained by this research are considered to be useful for drone detection systems not only using UWB radars but also using ISM band radars. 2 Measurement procedure…”

Section: Introductionmentioning

confidence: 99%

RCS measurements of various drones at 24 GHz

2020

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Radar is one of the technologies that can detect drones. We have previously proposed to use an ultra-wideband (UWB) radar, which uses quasi-millimeter wave band (24/26 GHz) or millimeter wave band (60/79 GHz), for drone detection. The radar cross section (RCS) of a radar target is an important factor related with the radar performance such as detection, tracking, and classification. This paper experimentally investigates the RCS patterns of five types of drones with different shapes, sizes, and the number of rotor blades (Phantom 3, Bebop Drone, 3DR Solo, Mavic Pro, and Matrice 600). RCS measurements were conducted at 24 GHz for two polarizations, H-H and V-V. As a result, we have confirmed that the mean RCS values of the drones vary from −8.1 dBsm to −19.1 dBsm depending on body size, shape, and polarization.

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A 24 GHz ISM Band Doppler Radar System for Moving Target Sensing

Cited by 2 publications

References 5 publications

A 24 GHz hydrology radar system capable of wide‐range surface velocity detection for water resource management applications

A 24 GHz hydrology radar system capable of wide‐range surface velocity detection for water resource management applications

RCS measurements of various drones at 24 GHz

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