1) stepped frequency
步进频率
1.
It gathers pertinent space information of scattered center and constructs two-dimensional images of targets using high range resolution techniques achieved by the stepped frequency of modern radars and the likelihood ratio detection criterion.
研究了一种在较强杂波背景下雷达二维目标图像的获取方法 ,该方法基于现代雷达系统的步进频率方式实现的距离高分辨率技术 ,通过似然比检验准则 ,获得目标各散射中心的空间相关信息 ,形成目标的二维图像。
2.
By computer,a study of the influence of conical scanning on one dimensional range imaging for stepped frequency MMW radar.
文中针对某小口径导引头用的圆锥扫描步进频率毫米波雷达系统,从理论上推导出了圆锥扫描体制下一维距离像的表达式,通过计算机模拟仿真,研究了天线圆锥扫描对一维距离像的影响。
3.
In this paper,the method of selecting parameter of conical scanning system and stepped frequency is reseached theoretically and the optimal system s parameter is given with Moden MMW radar signal processing.
文中针对某导引头用的圆锥扫描步进频率体制雷达系统,从理论上研究了圆锥扫描机构和步进频率信号的参数选择方法;结合现代毫米波雷达信号处理技术确定了圆锥扫描步进频率体制雷达导引头系统的匹配参数;最后,给出了该导引头系统应用于工程实践中的实验结果。
2) stepped-frequency
步进频率
1.
Design of DDS Stepped-frequency Used in Ground Penetrating Radar;
用于探地雷达的DDS步进频率设计
2.
This paper focuses on three kinds of high-range-resolution signals: stretch, stepped-frequency pulse and linearly modularized frequency stepped signals.
本文对线性调频信号、步进频率信号和线性调频步进信号这三种高分辨信号作了逐一分析,利用模糊函数讨论了它们的分辨力、距离-多普勒耦合等性能,介绍了每种信号的高分辨处理方法,并且研究了ISAR成像处理时目标运动所产生的影响及其补偿方法。
3.
A compound modulation signal composed of stepped-frequency(SF) and phase-coded(PC) signal for low probability intercept(LPI) radar is given.
针对低截获概率雷达设计了一种相位编码和步进频率复合调制信号,这种复合信号兼有相位编码信号和步进频率信号的优点,又弥补了各自的缺点。
3) step frequency
步进频率
1.
Fundamentals of step frequency radar signal processing are presented firstly.
首先介绍了步进频率雷达信号处理的基本原理,然后分析了步进频率雷达信号处理中,形成真实一维高分辨距离像时采用的几种典型目标抽取算法的缺点及成因,提出了更实用的目标抽取原则和最大可信度算法,最后通过计算机仿真及某雷达系统的外场实测数据处理验证了其可行性和有效性。
2.
In this paper, a kind of step frequency and pulse Doppler complex signal processing system is introducde.
提出了一种步进频率和脉冲多普勒(PD)复合体制的信号处理系统的设计与实现方法。
4) stepped-frequency
频率步进
1.
New estimation method of target s radial velocity for stepped-frequency radar;
一种频率步进雷达目标径向速度估计方法
2.
In this paper,the model of the step frequency signal considered the phase noise of frequency source is presented,and the phase noise effects on the stepped-frequency radar system is dis- cussed.
文中提出了基于频率源相位噪声的频率步进雷达系统的信号模型,讨论了频率源相位噪声对频率步进雷达系统性能的影响,并得出在满足系统性能的前提下对频率源相位噪声的要求,分析和仿真的结果对系统设计具有一定的指导意义。
3.
When synthesizing high resolution range profile for stepped-frequency radar, the desire for target velocity compensation accuracy is very rigorous.
频率步进雷达合成高分辨距离像时对速度补偿的精度要求很高,而采用高分辨距离间隔像处理则可以大大降低这种要求。
5) stepped frequency
频率步进
1.
Investigation on angle error detection algorithm of conical-scanned pulse doppler and stepped frequency composite guiding system;
锥扫脉冲多普勒/频率步进复合制导系统测角方法研究
2.
A new method is presented to locate multi-target 3-D coordinates by using stepped frequency waveform and cross received array antenna.
频率步进信号是发射载频步进变化的子脉冲串合成的大带宽信号,具有较高的距离分辨率,阵列天线是借助阵列信号处理的空间谱估计提高方位分辨率。
3.
As a high-range-resolution radar system, stepped frequency radar has great potential applications in accurate missile weapons.
频率步进雷达作为一种高距离分辨率雷达,在精确制导武器中有着广阔的应用前景。
6) frequency step
频率步进
1.
Based on phase composition of the pulse-to-pulse frequency step radar moving and stationary target video echo,2 simple and feasible methods are analyzed and simulated for combining detection moving and stationary targets.
从脉间频率步进雷达动、静目标视频回波的相位组成入手,分析并仿真了两种简单易行的动、静目标的检测方法,在获得一维高分辨距离像的同时,完成目标检测与速度估计。
2.
Adopting the method of obtaining the angle error signals proposaed in this article to obtain the angle eror signals of targets at the same time of completing the MMW frequency step target identification can be realized.
研究了毫米波频率步进目标辨识功能下获取弹目线相对于导引头轴的俯仰及偏航角误差信号的实现方法 ,并做了深入细致的分析 ,给出了仿真结果 ,进行了实验验证。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条