高频雷达能探测海面风、浪、流等动力学要素。
DSP和数字上变频和下变频技术是构建高频雷达通用硬件平台的关键技术。
The DSP, Digital Up Converter ( DUC ) and Digital Down Converter (DDC ) are key technology of a hardware-platform.
高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。
Operating in the heavy congested SW band, it is difficult for HFradars to find continuously useable waveband for signal modulation.
高频雷达回波信号受到电离层污染从而影响了雷达的探测性能，因此需要进行去污染处理。
The ionosphere contamination imposing on the High-frequency(HF) radar echoes has to be suppressed since it severely degrades the detection performance of HF radar.
该文通过对高频雷达信号处理过程的分析，阐明了电离层扰动对回 波信号污染的机理。
In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the process of HF radar signal processing.
软件高频雷达也是一部在岸边使用的高频地波超视距雷达，是国家211学科建设项目之一。
High frequency radar is also a high frequency ground wave super resolution radar used on the seaside, and meantime it is one of projects of National 211 for building subject.
本论文介绍了现有的从高频雷达回波多普勒谱中提取风向的几种方法，分析了这几种方法的不足之处。
This paper introduces several methods retrieving wind direction from HF radar echo Doppler Spectrum and analyses the feature of those methods.
在拥挤的高频频段，可用的连续带宽比较窄，基于连续谱信号体制的高频雷达的生存能力受到严重威胁。
In the highly crowded HF band, available continuous bandwidth is very narrow, this threaten the viability of HF radar based on the continuous spectra signal system seriously.
在不同波段不同极化下，应用图形电磁计算(GRECO)法计算了某模型的高频雷达散射截面(RCS)。
At different wave band and polarization, the high frequency RCS of a model was computed with the graphical electromagnetic computing (GRECO) method.
该文研究了在获得噪声频谱基础上，使用非线性优化方法获取雷达优质工作频率或频段，实现高频雷达工作频率在线实时优化选择。
In this paper, researched into the method of nonlinear optimization for obtained optimal HF radar work frequency, finished to optimize HF radar work frequency on-line real-time.
在德国Wachtberg的弗劳恩·霍夫高频物理学和雷达技术研究所，研究人员已经开发出一种能看穿烟雾的传感器。
Researchers at Fraunhofer Institute for High Frequency Physics and Radar Techniques in Wachtberg, Germany, have developed a sensor that can see through the smoke.
最后，经过七天的竞价，诺沃辛卖出了四件零件，包括以500美元的售价卖出一个雷达调节器和以32美元卖出一个高频无线电电路板。
During a seven-day auction on eBay that ended on May 29, Novocin says he sold four items, including an X-Band Weather Radar Modulator for and a high-frequency radio circuit card for .
作为高频频地波雷达的配套器件，应答器的工作方式和雷达密切相关。
As a device match of the high frequency ground wave radar, the responder 'working is correlating with the radar.
高频天波超视距雷达通过电离层的折射作用，具有同时超视距监测大区域范围的能力。
High frequency skywave over-the-horizon radar can provide a wide coverage beyond the horizon by means of refraction within the ionosphere.
游艇配有雷达导航系统、高频通信设备，冰箱、酒柜等一应俱全。
The yacht is equipped with radar navigation systems, high frequency communications equipment, refrigerators, wine cooler, etc.
图形电磁计算(GRECO)方法是计算复杂目标高频区雷达散射截面(RCS)的有效方法之一。
Graphical Electromagnetic computing (GRECO) is one of the valuable method for computing the radar cross section (RCS) of complex radar target in high frequency region.
图形电磁计算(GRECO)方法是计算复杂目标高频区雷达散射截面(RCS)的有效方法之一。
Graphical Electromagnetic computing (GRECO) is one of the valuable methods for computing the radar cross section (RCS) of complex radar target in high frequency region.
高频地波雷达近海监测和海态遥感技术是一种利用海洋回波多普勒谱反演海态参数的方法。
High frequency ground wave radar for near ocean inspection and ocean remote sensor is a method that use ocean echo wave Dopier spectrum to deduce the parameters of ocean situation.
高频地波超视距雷达可以实现对海洋环境状态(如风、浪、流等海洋动力学参数)的监测。
The high frequency ground wave over-the-horizon radar can be adopted in detecting ocean state such as wind, ocean waves and ocean currents.
高频地波雷达是对海面、低空目标进行超视距探测的重要手段。
High frequency surface wave radar is an important tool of the over horizon detection of sea and low-altitude targets.
因此，在高频地波雷达中适合采用互补码信号。
Thus, complementary codes are fit for high-frequency surface wave radar.
毫米波收发组件作为一个高频前端的子系统，是雷达、导航、电子战和通信等系统的一个重要组成部分。
As a subsystem of high-frequency front-end, millimeter-wave transceiver modules are the very important component of radar, navigation, electronic warfare and communications and other areas.
最初用于高频电缆的绝缘体（如雷达），现主要用于农膜、包装膜和食品包装膜。
Its first use was as an insulator for high frequency cable (RADAR). Its main use is now for films, for packaging and agriculture.
高分辨距离象是高频区雷达目标识别的最基本的依据。
In high frequency region, the radar range profiles are chosen as feature vectors for target recognition.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
近三十年来，高频地波对海探测雷达因其本身所特有的优点而引起了许多国家的高度重视。
During the near three decades, high - frequency ground wave radar detecting for sea has been regarded for its high performance by many countries.
分析了高频地波雷达的时序要求，采用大规模可编程逻辑器件CPLD实现了专用定时芯片。
The time-sequence requirements for the radar are analysed, and a programmable timer is realized by a CPLD.
介绍了基于USB2.0技术的高频地波雷达接收机系统。
The HF ground wave radar receiver system based on USB2.0 technique is introduced.
高频(HF)雷达海洋探测是典型的粗糙面对电波的散射问题。
Detection of ocean surface dynamics with HF radar is a typical problem of wave scattering from a rough surface.
由于工作在高频段，高频地波超视距雷达的角分辨力较差，尤其是当阵长受限时。
Owing to the decametric wavelength, the angular resolution of High Frequency Surface Wave OTH Radar (HF SWOTHR) is usually coarse especially when dimensions of antenna array are restricted.
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