Wave height measurement in the Taiwan Strait with a portable high frequency surface wave radar

2015 ◽  
Vol 34 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Hao Zhou ◽  
Hugh Roarty ◽  
Biyang Wen
Keyword(s):  
Surface Wave ◽  
Wave Height ◽  
High Frequency ◽  
Taiwan Strait ◽  
Height Measurement ◽  
Wave Radar ◽  
The Taiwan Strait

A SOLUTION TO STABILIZE THE RECEIVER BEAMWIDTH WHEN CHANGING THE OPERATING FREQUENCY OF HIGH-FREQUENCY SURFACE WAVE RADAR

2021 ◽  
pp. 2614-2624
Author(s):  
H. H. Dung, C. V. Linh
Keyword(s):  
Signal Processing ◽  
Surface Wave ◽  
Frequency Modulation ◽  
High Frequency ◽  
Operating Frequency ◽  
Design Solution ◽  
Processing Quality ◽  
Wave Radar ◽  
Single Station ◽  
Interference Frequency

A single-station High-Frequency Surface Wave Radar (HFSRR) consists of transmitting and receiving antennas in an area with a distance between them approximately ten times their wavelength. At the coast, these antennas are usually deployed at fixed optimal distances for an operating frequency in the HF band (3÷30Mhz). Because the signal used is linear frequency modulation (FMCW), the HFSWS always requires an interference-resistant frequency band. So, it is necessary to change the operating frequency in HFSWR to avoid strong interference, frequency bands. This also results in a change in the received waveform, which affects signal processing quality. In this article, a design solution is proposed to maintain a consistent beamwidth when changing the operating frequency in the HFSWS.

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