Zobrazeno 1 - 10
of 1 227
pro vyhledávání: '"Range-Doppler"'
Publikováno v:
Leida xuebao, Vol 13, Iss 5, Pp 1109-1122 (2024)
Vortex Electromagnetic Waves (VEMWs) have unique wavefront phase modulation characteristics. As a new degree of freedom in the diversity of radar transmitters, the VEMW Radar (VEMWR) provides Radar Cross-Section (RCS) diversity and improves signal an
Externí odkaz:
https://doaj.org/article/01a5eb5415624d33beea9fd2f472d101
Publikováno v:
In Digital Signal Processing March 2025 158
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 2, Pp 198-205 (2024)
This paper presents a novel method for removing noise from range-Doppler images by using a filter prior to conducting target classification using a deep neural network. Specifically, Kuan, Frost, and Lee filters are employed to eliminate speckle nois
Externí odkaz:
https://doaj.org/article/1a1bafccd8a848d8b3abb384cc2c2e23
Publikováno v:
IEEE Access, Vol 12, Pp 158226-158238 (2024)
Range-Doppler (RD) imaging has eclipsed synthetic aperture radar (SAR) imaging as the latest hotspot in the field of radar image object detection, owing to its low cost, high speed, and broad application scope. However, RD images are often of low qua
Externí odkaz:
https://doaj.org/article/c59401cfd7234bcbba9de594d0613169
Autor:
James Park, Raghu G. Raj
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 15089-15101 (2024)
Bistatic radar provides an additional degree of freedom in the observing geometry for imaging by using a spatially separated transmitter and receiver. This capability allows the capture of scattering phenomena at various bistatic sensing angles, whic
Externí odkaz:
https://doaj.org/article/c3f8b62843b940fbacdc6be5f042bdde
Publikováno v:
Remote Sensing, Vol 16, Iss 21, p 3929 (2024)
High-frequency surface wave radar (HFSWR) is widely used for detecting sea surface or low-altitude targets due to its all-weather operation and over-the-horizon detection capability. To further enhance the maneuverability and detection range of HFSWR
Externí odkaz:
https://doaj.org/article/87452501ed704375938a837d8faf2f24
Autor:
Kexin Cheng, Youqiang Dong
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 8829 (2024)
The range–Doppler (R–D) model is extensively employed for the geometric processing of synthetic aperture radar (SAR) images. Refining the sensor motion state and imaging parameters is the most common method for achieving high-precision geometric
Externí odkaz:
https://doaj.org/article/15234cd653444d7386c4c3b1e55521bb
Publikováno v:
Remote Sensing, Vol 16, Iss 18, p 3476 (2024)
The monitoring of the sea surface, whether it is the state of the sea or the position of targets (ships), is an up-to-date research topic. In order to determine localization parameters of ships, we propose a high-resolution algorithm for primary sign
Externí odkaz:
https://doaj.org/article/e2c57ace0e5144dc863bf30cc3faaa9f
Publikováno v:
Sensors, Vol 24, Iss 17, p 5805 (2024)
This paper proposes a novel drone detection method based on a convolutional neural network (CNN) utilizing range–Doppler map images from a frequency-modulated continuous-wave (FMCW) radar. The existing drone detection and identification techniques,
Externí odkaz:
https://doaj.org/article/af9203401c1d41eab182994b05ae4cad
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7601 (2024)
The range-Doppler algorithm (RDA), a key technique for generating synthetic aperture radar (SAR) images, offers high-resolution images but requires significant memory resources and involves complex signal processing. Moreover, the multitude of fast F
Externí odkaz:
https://doaj.org/article/928201a743ed409286d0bef1d0ceacde