Effect of Internal Fluctuations and Scanning on Clutter Attenuation in MTI Radar

Grisetti, R. S.; Santa, Matthew; Kirkpatrick, G. M.

doi:10.1109/tane3.1955.5062420

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…For the problem of reducing clutter from unwanted objects, the two most popular methods are moving target indication (MTI) and moving target detection (MTD). The MTI was first discussed by Ridenour [2] and Grisetti et al [3], and it contains a delay line and a subtraction circuit that takes the difference between consecutive pulses. For a moving target, the Doppler shift of the carrier frequency will change the phase of the received pulse, whereas a ground or building echo will leave it essentially unchanged.…”

Section: Introductionmentioning

confidence: 99%

A design of a high‐resolution frequency modulated continuous wave radar for drone detection based on spurious phase noise and discrete clutter reduction

Vu Hop,

Cao Quyen,

Van Loi

2023

IET Radar Sonar & Navi

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The authors deal with the problem of the design and manufacture of a high‐resolution FMCW radar for drone detection and classification. The difficulties of the problem are discrete clutter reduction and spurious phase noise mitigation. The discrete clutter is due to the reflected signals from land vehicles, birds etc., while the spurious phase noise is inherent in the radar signal due to the phase‐locked loop component and leakage between the transmitting and receiving paths. Both spurious phase noise and clutter will increase the system noise level and hence reduce the probability of detection of small targets such as drones and induce false alarms on the radar screen. In order to reduce discrete clutter, the authors propose a method to separate a drone from discrete clutter based on the design of the radar system parameters for a drone and its propeller detection, target's Doppler dispersion and moving characteristics. For spur mitigation, a method that focuses on the design of the isolation coefficient between transmitting and receiving paths to decrease the power of spurs below the minimum power requirement at the input of the analogue‐to‐digital converter is introduced. The results were applied by the authors to the development and manufacture of a radar with the given specifications for drone detection and classification. Different laboratory and field tests show that the spurs are mitigated and the drones are separated from discrete clutter with a range and accuracy better than the one recently published.

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Section: Introductionmentioning

confidence: 99%

A design of a high‐resolution frequency modulated continuous wave radar for drone detection based on spurious phase noise and discrete clutter reduction

Vu Hop,

Cao Quyen,

Van Loi

2023

IET Radar Sonar & Navi

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“…Two most popular methods for radar clutter reduction are the MTI and MTD. The MTI was firstly discussed by Ridenour (see [2]) and Grisetti et al (see [3]) and it contains a delay line and a subtraction circuit which takes the difference between consecutive pulses (see Figure 2). For a moving target, the Doppler shift of the carrier frequency will change the phase of the received pulse whereas a ground or building echo will leave it essentially unchanged.…”

Section: Introductionmentioning

confidence: 99%

A Discrete Clutter Reduction Method for Drone Detection with High Resolution Radars

Hop¹,

Loi²,

Tien³

et al. 2022

Frontiers in Artificial Intelligence and Applications

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The paper deals with a problem of noise reduction for drone detection with high range resolution radars. The considered discrete clutter includes land vehicles, birds, etc. This clutter involves in the radar echo signals and could not be rejected by using classical methods, for example moving target indicator (MTI) and moving target detection (MTD). As a result, this clutter forms the false alarms on the radar screen. To reduce clutter we propose a new method which is based on the target’s Doppler dispersion and moving characteristic. The study is integrated on a drone detection radar and is tested with a variety of drones in different moving scenarios. The test results show that the proposed method achieves a better performance than that one recently published.

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Detection of moving radar targets in clutter

Zetterberg

1958

Information and Control

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Effect of Internal Fluctuations and Scanning on Clutter Attenuation in MTI Radar

Cited by 5 publications

References 2 publications

A design of a high‐resolution frequency modulated continuous wave radar for drone detection based on spurious phase noise and discrete clutter reduction

A design of a high‐resolution frequency modulated continuous wave radar for drone detection based on spurious phase noise and discrete clutter reduction

A Discrete Clutter Reduction Method for Drone Detection with High Resolution Radars

Detection of moving radar targets in clutter

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