Natural magnets were made into the first direction-finding compass by ancient Chinese people, which greatly improved a ship's ability to navigate over long distances.
中国古人利用天然磁石制成了第一台可以辨别方向的指南针，大大增强了船只的远航能力。
The paper centers on the radar passive direction-finding and localization technology.
雷达无源测向定位技术是一种非常有效的雷达电子对抗技术。
The research of DOA estimation in passive direction-finding sonar has important practice significance.
被动测向声纳中的波达方向估计研究具有重要的现实意义。
The proposed method only need the direction-finding information and need not have any other prior knowledge.
该方法只需要测向信息，无须其他先验知识。
Based on a log-periodic antenna array, a direction-finding algorithm is put forward and its performance has been analyzed.
以对数周期天线圆形阵为基础，提出了一种比幅测向算法，并对算法性能进行了分析。
A new direction-finding MUSIC algorithm based on virtual array transformation is proposed to extract the coherent sources.
提出一种基于虚拟阵列变换方法的解相干信号的MUSIC算法。
This paper discusses the application of Rician Distribution multipath descent in two kinds of conventional direction-finding.
讨论了莱斯多径衰落信道模型在两类常规测向技术中的应用。
In the case of far field sources, based on the subspace direction-finding technique, a new method for active calibration of array shape is presented.
文中基于子空间类测向方法，在远场情况下，提出了一种新的估计阵元位置误差的有源校正算法。
In the case of far field sources, based on the subspace direction-finding technique, a new method for active calibration of array shape is presented.
文章基于子空间类测向方法，在远场情况下，提出了一种新的阵元互耦有源校正算法。
High resolution direction-finding method using array signal processing technique plays a pivotal role in the new electronic reconnaissance satellite system.
采用阵列信号处理进行高分辨测向是新体制电子侦察卫星的关键环节。
The spatial spectrum technique based on MUSIC algorithm is mainly discussed as well as its application in the vehicle-carried direction-finding system of UAV.
介绍了一种基于MUSIC算法的空间谱估计技术，对其算法原理与过程进行了详细分析，并给出了它在车载无人机测向系统中的应用。
Among the methods of jamming the direction-finding system of the guide head of a missile, twinkle jamming is generally considered a kind of rather available method.
在对导弹导引头测向系统的诸多干扰方法中，闪烁干扰是一种普遍认为较有效的干扰。
In this article we introduce a solid signal distill and direction-finding incorporation algorithm, the parallel realization of algorithm on six ADSP21060 chips is described.
文章介绍了一种比较稳健的信号提取与测向一体化算法，并且在6片adsp - 21060组成的并行处理系统中得到了实现。
In this paper, a computation model for direction-finding accuracy experiment error in the environment of standard direction-finding site is established based on double-path model.
基于双径模型研究了在标准测向场环境下测向精度试验误差的计算模型。
This paper describes the defect of amplitude-comparison discriminator in direction-finding system in PRS, then put forward a compensating method of digital automatic gain control.
分析了比幅鉴别器在导引头测向系统中的缺点，提出了用数字式自动增益补偿的方法来加以改善。
For solving this problem, a novel antenna array and Direction-finding algorithm based on it are proposed.
为解决这一问题，提出了一种新型天线阵及基于该天线阵的测向方法。
A proposed relevant compensate method can counteract all system errors of the whole Direction-finding machine in theory.
提出基于新天线阵的补偿方法，理论上可以完全消除整个测向机的系统误差。
There is a contradiction between miniature aperture size and high accuracy in the interferometer Direction-finding machine.
干涉式测向机存在着阵孔径大小和准确度之间的矛盾。
For the eigen-based direction finding technique, array sensor gain and phase uncertainties degrade severely its performance.
基于阵列协方差矩阵特征分解的测向技术，在天线阵各通道特性不一致时，其性能会急剧下降。
Direction finding is an important component of Electronic Warfare (EW) system. The direction finding precision may directly affect signal sorting, identification, location and jamming decision etc.
测向是电子战系统的一个重要组成部分，测向精度直接对信号分选、识别、定位、干扰决策等都产生较大的影响。
The narrow band propagator method is introduced to the wideband signal-subspace processing in the direction finding problem.
将窄带传播算子方法引入宽带源测向的相干信号子空间处理中。
Direction finding of low probability intercept (LPI) signals is the difficult problem in modern EW system.
低截获概率(LPI)信号的测向是现代电子战的一大难题。
After a sufficient and necessary condition of phase interferometer unambiguous direction finding is proved, two methods of ambiguity resolution by combination of long baselines are presented.
在证明了多基线的相位干涉仪不产生测向模糊的充要条件后，讨论了两种用长基线组合解测向模糊的算法。
This paper analyses the overall tactics demand of integrated survey and direction finding equipment, and then approaches the feasibility plan for the military equipment.
分析了新体制侦察测向装备总体战术需求，探讨了全波段侦察测向设备一体化的可行性方案。
Restricted by the long period, high cost and condition, the computer simulation is used to evaluate the communication countermeasure and direction finding rather than making hardware experiments.
由于通信测向硬件测试和分析成本高、周期长、受外界条件限制严重，因此在很大程度上依赖计算机仿真技术，计算机仿真获得了广泛应用。
The ADPSO is a global optimization algorithm for direction finding, which takes advantage of the merits of differential evolutionary algorithm and particle swarm algorithm.
利用粒子群算法和差分进化算法的优点，可以获得测向问题的全局最优解。
This paper introduces the operation principle and engineering realization of a sort of high precise sum-difference beam single pulse direction finding receiver.
阐述了一种高精度和-差单脉冲测向接收机的工作原理及工程实现。
If a radar operates passively, it can obtain the objective of passive direction finding against a jamming source by means of receiving and utilizing the jamming signal.
雷达无源工作时，可以接收和利用干扰信号对干扰源进行无源测向。
This prototype system realizes the core functions of direction finding system and establishes a solid foundation for putting direction finding products into practice.
该系统基本实现了无源测向系统的核心功能，为无源测向的实用化开发奠定了基础。
This prototype system realizes the core functions of direction finding system and establishes a solid foundation for putting direction finding products into practice.
该系统基本实现了无源测向系统的核心功能，为无源测向的实用化开发奠定了基础。
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