高频雷达,HF radar
1)HF radar高频雷达
1.Design ofHF radar system with noise spectrum monitoring;带实时频谱监测的高频雷达系统设计
2.Numerical Simulation and Analysis for the Sea Echo Spectrum of HF Radar;高频雷达海面回波信号的数字模拟与分析
3.Radio frequency interference (RFI) often causes great trouble toHF radars.射频干扰是困扰高频雷达工作的难题之一 。
英文短句/例句
1.Frequency Monitor and Frequency Selection Method Research of High-Frequency Software Defined Radar;软件高频雷达频率监测及选频方法的研究
2.Development of a Portable High-Frequency Radar; Technical rept一种便携式高频雷达的研制/技术报告
3.Study on Some Problems in HF Radar Signal Processing;高频雷达信号处理中的若干问题研究
4.The interface realization of ICS554 in Software High Frequency RadarICS554在软件高频雷达上的接口实现
5.Time-frequency Image Processing for Maneuvering Target Detection in HF Over-the-horizon Radar高频雷达机动目标的时频图像处理方法研究
6.EXTRACTION OF WIND FIELD FROM HIGH FREQUENCY RADAR SEA ECHO DOPPLER SPECTRA从高频雷达海面回波多普勒谱提取风场信息
7.VHF and UHF Doppler radar甚高频和超高频多普勒雷达
8.Design of synchronous control systems for multi-HF surface wave radars多频高频地波雷达同步控制系统设计
9.Estimation of Target Altitude in HFSWR Based on EKF;基于EKF的高频地波雷达目标高度估计
10.Clutter Cancellation and High Resolution Processing in HPRF Stepped-frequency Radar高重频频率步进雷达的杂波抑制和高分辨处理
11.A High Accuracy All-Programmable Radar Video Echo Simulator高精度全可编程雷达视频回波模拟仪
12.The Application of the Sequence Detection Method in over the Horizon Radar;序列检测法在高频超视距雷达的应用
13.On the high frequency pre-evaluation method of radar cross section of targets;目标雷达散射截面(RCS)的高频预估方法
14.Design of the Minitype Broadband Transmitting Antenna in HFSWR小型宽带高频地波雷达发射天线设计
15.A Study on Characteristics and Applications of HFGround Wave OTH Radar高频地波超视距雷达特点及应用研究
16.Research on Intermediate Frequency Sampling System and Dither Technique in HF Radar;高频地波雷达中频采样系统及抖动技术的研究
17.Research on Intelligent Optimization System of High-Frequency Surface Radar"s Operating Frequency高频地波雷达智能频率优选系统的研究
18.Performance Analysis of Frequency Modulation Ranging for High-PRF PD Radar脉冲多普勒雷达的高重频调频测距性能分析
相关短句/例句
high-frequency radar高频雷达
1.The Application of ICS554 in the Software High-Frequency Radar;ICS554在软件高频雷达中的应用
2.The meteor trail echo is one of the main interferences and has to be suppressed since it severely degrade the detection capability ofhigh-frequency radar.流星余迹回波是高频雷达的主要干扰源之一,严重影响了雷达对目标的探测性能,必须加以抑制。
3)high frequency radar高频雷达
1.By analyzing time-frequency characteristics of the pulse interference in the frequency monitor system (FMS) ofhigh frequency radar, this paper gives a method to eliminate its effects.通过分析脉冲干扰在高频雷达频率监测系统(FMS)中的时频特性,提出了通过时频处理剔除脉冲干扰的一种有效方法。
4)V.H.F. radar甚高频雷达
5)high frequency ground wave radar高频地波雷达
1.Research on the application of adaptive techniques inhigh frequency ground wave radar;自适应技术在高频地波雷达接收系统中的应用
2.Design of High Frequency Ground Wave Radar Responder;高频地波雷达应答器的设计
3.According to the characteristic of echo signals ofhigh frequency ground wave radar,a novel method of calculating target′s direction of arrival(DOA) without array-calibration which based on a two-rows linear array is proposed in this paper.针对高频地波雷达回波信号的特点,提出了一种基于4阶累积量的阵列无源校正的方法。
6)high frequency surface wave radar高频地波雷达
1.Wavelet analysis-based suppression of ionospheric clutter inhigh frequency surface wave radar;基于小波分析的高频地波雷达电离层杂波抑制
2.Ionospheric clutter suppression inhigh frequency surface wave radar based on time-frequency analysis;基于时频分析的高频地波雷达电离层杂波抑制
3.To suppress the radio disturbance ofhigh frequency surface wave radar (HFSWR), a method of polarization signal processing is proposed, which integrates polarization-vector translation (LPVT), nonlinear polarization-vector translation (NLPVT) and multinotch logic-product polarization (MLP) filtering together.为抑制高频地波雷达电台干扰,提出用线性极化变换(LPVT)、非线性极化变换(NLPVT)和多凹口逻辑积极化(MLP)滤波相结合进行极化处理的方法。
延伸阅读
甚高频和超高频多普勒雷达工作在30～3000兆赫频段的气象多普勒雷达。一般具有很高的探测灵敏度。因探测高度范围可达1～100公里，所以又称为中层-平流层-对流层雷达 (MST radar)。它主要用于探测晴空大气的风、大气湍流和大气稳定度（见大气静力稳定度）等大气动力学参数的铅直分布。原理 这类雷达通过以下几类电磁波和大气的相互作用,对晴空大气进行探测:①由大气湍流运动引起的折射率不均匀结构对电磁波的散射；②稳定大气分层结构对入射电磁波的部分反射；③有时出现于中层大气的自由电子对电磁波的散射；④中层大气中的流星余迹散射。散射体积内空气的运动，使雷达回波具有多普勒频偏。结构 MST 雷达的结构和气象多普勒雷达大致相同。其特点在于：它们一般配备了大型天线（天线阵），有些甚高频段雷达的天线阵，尺度达 30～200米，采用半波振子阵或八木天线振子阵，以相控方式实现波束扫描。超高频段雷达采用直径几十米的可动抛物面天线，这类雷达的发射功率在几百千瓦至 2兆瓦之间，发射功率和天线面积的乘积值在106～1010瓦·米2之间。此外，为获得高灵敏度和高空间分辨率，在脉冲发射体制和回波数据处理方面，也采取一些技术措施。用途 利用回波的多普勒频谱可以进行下述各项测量：①探测大气风场的铅直分布。同一仰角，空间分辨率约为 150～1000米，采用脉冲压缩技术后，分辨率已可达到15米。②探测大气湍流结构。可以给出平均折射率湍流结构常数(C厒)的铅直分布。再引入一些大气湍流模式后，可以推算出湍流耗散率的铅直分布。③探测对流层顶高度及逆温层的高度和厚度。目前，甚高频和超高频多普勒雷达还只能测定上述气象要素的铅直廓线及其时间变化，而不能给出三维空间分布资料。参考书目K.S.Gage，B.B.Balsley,Doppler Radar Probing of the Clear Atmosphere,Bulletin of American MeteorologicalSociety,Vol.59，No.9，pp.1074～1093，1978.
