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- LFM-Costas stepped frequency radar (SFR) signal is an important radar signal. 线性调频 Costas频率步进雷达信号是一种很有研究价值的雷达信号。
- You can select single, dual or multi frequency among Germany (DCF, 77.5kHz), US (WWVB, 60kHz), Japan(JJY40 &NJJY60), or UK(MSF 60kHz) . 全球独创铜字面电波表。根据不同国家的频率，生产单频，双频，多频的机芯（DCF，JJY，NJJY，MSF，WWVB）。
- Submesoscale Coastal Ocean Flows Detected by Very High Frequency Radar and Autonomous Underwater Vehicles. 甚高频雷达和自控潜水艇探测到的次中尺度沿岸海流。
- X. Mao, Y. Liu. Null phase-shift polarization filtering for high frequency radar, IEEE trans. Aerospace and Electronic Systems, 2007.7. 毛兴鹏;刘永坦;邓维波.;频域零相移多凹口极化滤波;电子学报;录用
- The millimeter wave (MMW) Inter-pulse stepped frequency radar is a type of wide-band high-range-resolution radar. 毫米波脉冲频率步进雷达是一种宽带高距离分辨率雷达。
- The frequency synthesizer is the core device of MMW inter-pulse stepped frequency radar, and its performance has great effects on radar system. 频率合成器是毫米波脉冲频率步进雷达的核心部件,其性能指标的优劣对整个雷达系统有较大的影响。
- Thomas, R.M., P.S.Whitham, and W.G.Elford, Response of high frequency radar to meteor backscatter, Journal of Atmospheric and terrestrial Physics Vol. 50 pp. 703-724, 1988. 龚瑞鸣，利用中坜雷达进行流星尾观测系统及方法之建立，博士论文，国立中央大学大气物理研究所，1998。
- This paper studies how to detect the moving targets on the land and sea surface in the background of clutters by using pulse-pulse step frequency radar. 研究了用脉间步进频率雷达对杂波背景噪声下地面或海面动目标的探测。
- multi frequency energy harvesting 多频能量采集
- multi frequency signaling system 多频信令系统
- Dual Tone Multi Frequency(DTMF) signal DTMF信号
- The high range resolution capability of stepping frequency radar with its unique waveform and processing is being exploited to solve the problem of detection of low RCS targets in heavy clutter. 频率步进雷达，由于其高距离分辨能力及独特的波形和处理，正在用来解决强杂波中小目标的检测问题。
- Dual Tone Multi Frequency detection [DTMF detection] 双音调多频探测
- High Frequency Radar and Its Real-Time Control 高频雷达及实时选频
- Dual Tone Multi Frequency generation [DTMF generation] 双音调多频放射
- Integrated Multiple Frequency Radar 综合多频雷达
- dual tone multi frequence (DTMF) 双音多频
- double - frequency radar altimeter 双频雷达高度计
- modulated stepped frequency radar 调频步进频雷达
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
