Results 301 to 310 of about 242,024 (339)
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High Frequency radar measurement resiliency with bistatics
OCEANS 2015 - MTS/IEEE Washington, 2015Increasing the resiliency of High Frequency radar measurements has been a priority within the community for the past several years. One method to increase resiliency is through the use of a bistatic radar configuration, which is unique to the SeaSonde HF radar.
Chloe Baskin +5 more
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Timing Signal Generator for High Frequency Radar
2020 IEEE 1st International Conference for Convergence in Engineering (ICCE), 2020In a radar application, Time Signal Generator (TSG) is used to generate timing and control signals which helps radar to operate in different functions. The functions include tracking, detection, and hold mode. Timing Signal Generator is the heart of radar applications.
Jasmin B. Mulla +2 more
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High Frequency Over-the-Horizon Radar
2019 IEEE Radar Conference (RadarConf), 2019Presents a collection of slides covering the following topics: high frequency over-the-horizon radar; HF channel model; time-varying adaptive beamforming; space-time adaptive processing; GLRT detection schemes; HF passive radar; blind signal separation; multipath-driven geolocation and MIMO OTHR concept.
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Evaluation of high frequency radar wave measurement
Coastal Engineering, 1999Abstract The spatial coverage, temporal availability and spectral and parameter accuracy of wave measurements using radars operating at the upper end of the high frequency (HF) radio band are discussed. The two radars used are the Ocean Surface Current Radar (OSCR) developed in the UK and the Wellen Radar (WERA) developed in Germany. The measurements
L.R Wyatt, S.P Thompson, R.R Burton
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Waveform analysis for high-frequency FMICW radar
IEE Proceedings F Radar and Signal Processing, 1991The paper describes the waveform analysis for an experimental long-range highfrequency radar system with a design capability for over-the-horizon detection of ocean surface targets up to 400 km from shore with a range resolution of 400 m. Motivated by the need to maximise the transmitter duty cycle in order to detect long-range targets, the radar is ...
R.H. Khan, D.K. Mitchell
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HIGH-FREQUENCY (SKY-WAVE) RADAR PERFORMANCE
1967Abstract : The expected performance of high-frequency radar has been examined as a function of sunspot cycle, season, and time of day, using recent ITSA techniques. The method of performance assay provides a good basis for both radar design and comparison.
Donald L. Lucas +2 more
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Impulsive Interference Mitigation in High Frequency Radar
2006 1ST IEEE Conference on Industrial Electronics and Applications, 2006An effective method for impulsive interference mitigation in high frequency (HF) radar based on the detect-excise-and-extrapolate idea is presented. The key to the method's success is suppressing the ocean clutter in the time domain prior to detecting the impulsive interference.
Huang. Liang, Wen. Biyang
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Detection scene analysis for high frequency radar
2009 IEEE Youth Conference on Information, Computing and Telecommunication, 2009Suffering from multiform time-variant and fluctuant clutter in High Frequency Radar(HFR), uniform target detection, tracking and clutter mitigation methods will result in false alarm or missing alarm. To select optimized detection and clutter mitigation method in the region of interesting, a method maximizing the separability of the resultant classes ...
Yang Li, Ning Zhang, Qiang Yang
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High-precision measurement of radar carrier frequency
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559), 2002When measuring the radar carrier frequency (RCF) via DFT, the frequency resolution is 1/2N, where N is the length of the DFT sequence. To improve the frequency measurement precision, the length of the DFT sequence must be increased, thus the computation is increased too.
null Donghai Li +3 more
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Ionosphere Decontamination of High Frequency Radar Echoes
2006 CIE International Conference on Radar, 2006The ionosphere contamination imposing on the high frequency (HF) radar echoes has to be suppressed since it severely degrades the detection performance of HF radar. In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the course of HF radar signal processing. According to
Xi-xin Chen, Yin-he Huang
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