Progress in HFSWR Research at Harbin Institute of Technology

机译：哈尔滨工业大学HFsWR研究进展

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The Experimental HF Surface Over-the-Horizon Radar set up in the late 1980's has been updated by the following attributes: (1) installation of multi-channel receivers with digitization at the second IF stage, (2) newly designed transmitting and receiving antennas, (3) wideband solid-state power amplifiers, (4) frequency synthesizer with low phase noise and flexible signal generator, (5) a new radar controller added to allow the automatic and manual control of the radar, (6) a newly designed signal and data processor built mainly with 16 bits A/D converters and several multiprocessor boards with Share chip processors added in, and (7) an electromagnetic spectrum monitor equipped in the updated radar system to be able to automatically survey HF spectrum occupancy for providing so-called clear frequency channel suitable for radar operation. The purpose of setting up the updated radar system is to demonstrate some of the new functions of the radar system, and to prove some new techniques to be possibly used in the near future. In the paper, some of the latest developments of countering measures with radio frequency interferences are also presented.

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作者
Liu, Y. ; Xu, R. ; Zhang, N.;
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年度 2005
页码 1-8
总页数 8
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
High frequency; Research facilities; Over the horizon radar; Symposia; Antennas; Amplifiers; Electromagnetic spectra; China; Frequency synthesizers; Multiprocessors; Receivers; Surface waves;

机译：高频;研究设施;超视距雷达;专题讨论会;天线;放大器;电磁波谱;中国;频率合成器;多处理器;接收器;表面波;

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Progress in HFSWR Research at Harbin Institute of Technology

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