Results 71 to 80 of about 287 (119)

Wavelet Contribution to Remote Sensing of the Sea and Target Detection for a High-Frequency Surface Wave Radar

, 2008
International audienceHigh-frequency waves (3-30 MHz) interact with the sea surface. Thus, a high-frequency surface wave radar (HFSWR) is well suited to perform remote sensing of the sea.
Hélier, Marc, Saillant, Stéphane, Jangal, Florent   +2 more
core   +1 more source

Improved Main Lobe Cancellation Method for Suppression Directional Noise in HFSWR Systems

Remote Sensing
High frequency surface wave radar (HFSWR) has been successfully developed for early warning, especially for vessel target detection. However, the system’s performance is consistently constrained by external environmental noise, particularly directional ...
Dezhu Xiao, Xin Zhang, Qiang Yang, Jiaming Li   +3 more
doaj   +1 more source

Radar cross-section modeling of marine vessels in practical oceanic environments for high-frequency surface-wave radar

, 2009
Models of the Teleost marine vessel and the Bonn Express cargo freighter are developed for generation of monostatic and bistatic radar cross section (RCS) returns for high-frequency surface-wave radar (HFSWR).
Antar, Yahia A. M., Leong, Hank, Symon K. Podilchak, Solomon, Ryan, Ryan Solomon, Podilchak, Symon, Hank Leong, Yahia M. M. Antar   +7 more
core   +1 more source

Antenna Pattern Calibration Method for Phased Array of High-Frequency Surface Wave Radar Based on First-Order Sea Clutter

, 2023
The problem of accurate source localization has been an area of focus in high-frequency surface wave radar (HFSWR) applications. However, antenna pattern distortion (APD) decreases the direction-of-arrival (DOA) estimation performance of the multiple ...
Qiang Yang, Aijun Liu, Zhe Lyv, Changjun Yu, Hongbo Li   +4 more
core   +1 more source

A Modified STAP Estimator for Superresolution of Multiple Signals

International Journal of Antennas and Propagation, 2013
A modified space-time adaptive processing (STAP) estimator is described in this paper. The estimator combines the incremental multiparameter (IMP) algorithm and the existing beam-space preprocessing techniques yielding a computationally cheap algorithm ...
Zhongbao Wang, Junhao Xie, Zilong Ma, Taifan Quan   +3 more
doaj   +1 more source

Space-Time Adaptive Processing Clutter-Suppression Algorithm Based on Beam Reshaping for High-Frequency Surface Wave Radar

, 2022
In high-frequency surface wave radar (HFSWR) systems, clutter is a common phenomenon that causes objects to be submerged. Space-time adaptive processing (STAP), which uses two-dimensional data to increase the degrees of freedom, has recently become a ...
Qiang Yang, Xiaowei Ji, Dezhu Xiao, Xin Zhang, Jiaming Li   +4 more
core   +1 more source

Ionospheric clutter models for high frequency surface wave radar

, 2017
High frequency surface wave radar (HFSWR), operating at frequencies between 3 and 30 MHz, has long been employed as an important ocean remote sensing device.
Chen, Shuyan
core  

High frequency surface wave radar demonstrator

, 2019
High Frequency Surface Wave Radar (HFSWR) is used around the globe for the mapping of sea currents and coastal monitoring of the Exclusive Economic Zone.
Burger, Johann
core  

Study on the Elimination Method of Wind Field Influence in Retrieving a Sea Surface Current Field. [PDF]

Sensors (Basel), 2022
Yuan X, Wang J, Han B, Wang X.
europepmc   +1 more source

Adaptive Waveform Design and CFAR Processing for High Frequency Surface Wave Radar

, 2017
High frequency surface wave radar (HFSWR), used for coastal surveillance, operates in a challenging environment as the clutter signals returned from the ocean surface can be several orders of magnitude larger than returns from targets. Reliably detecting
Cheeseman, Alison
core   +1 more source