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target ship    
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  目标船
    This article carries out a deep research into the composition of the computer based radar maneuvering simulator and its simulation method. It puts forward the ways and steps to produce coast line echo, the ways to display coastline echo and target ship echo, the ways to simulate sea clutter, and particularly the ways to clip an arc with a circle with respect to the clipping rings with radar PPI.
    对基于微机的雷达操纵模拟器的构成和仿真方法进行了深入地研究,给出了岸线的生成方法和步骤、岸线回波的显示方法、目标船回波的显示方法、海浪回波的模拟方法,并针对雷达中PPI对固标圈的裁剪提出了圆对弧的完整的裁剪方法.
短句来源
  靶船
    Method and Realization of Heading & Attitude Measurement and Positioning & Timing for Target Ship
    一种靶船航向、姿态测量与定位、授时的方法与实现
短句来源
  靶船
    Method and Realization of Heading & Attitude Measurement and Positioning & Timing for Target Ship
    一种靶船航向、姿态测量与定位、授时的方法与实现
短句来源
  靶船
    Method and Realization of Heading & Attitude Measurement and Positioning & Timing for Target Ship
    一种靶船航向、姿态测量与定位、授时的方法与实现
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  target ship
It was found that for a target ship consisting of a 6000-unit Ro-Ro vessel, vehicle securing is mainly influenced by the ship's rolling motions and is highly dependent on the wave height and loading conditions.
      
The solid lines between CG 68 and 71 and the drones indicate the target/ship engagement pairings.
      
The relative bearing of own ship from a target ship.
      
The fact that GrB targets Hip is a first clue that Hip may have such a biological role.
      
They are NOT designed to reveal any detailed information about the target ship.
      
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in this paper, an improved periodogram analysis proposed by Welch is used to estimate power spectrum of ship's magnetic signals, and some normalized characteristic curves are given. On the basis of analysis, this paper puts forward a feature in frequency domain and researches into identification of the velocity of the target ship by the feature frequency fu. The statistical results of computer simulation show that the probability of right identification is above 95%.

本文采用修正的周期图法(Welch法)对舰船磁场信号进行了功率谱估计并给出归一化曲线。在此基础上,提取了频域特征量,利用特征频率f_H进行了目标舰船速度的识别研究。计算机仿真表明,正识率可达95%以上。

Using 80386 and AGC 2084+ graphics board based on TMS 34020, this paper completes the simulation of radar image for SPERRY 3400Ⅱ, which includes the following aspects: the obtaining of topographical data and the establishment of radar plane coordinate system and the radar image simulation of coastline and target ships, etc.

使用80386和基于TMS34020芯片的图形板AGC-2084+完成了对SPERRY3400Ⅱ雷达图像的模拟.其中主要包括地形数据获取和雷达平面坐标系的建立,岸线及目标船图像的模拟方法

In this paper, the Barrick's equation for the HF radar cross section of the sea (seaclutter)is used to determine the limitation that this clutter could impose on the detection of ships byHF radar. Target ship radar cross section of 30dBm2 and 50dBm2 were utilized f and a radar antennaaperture of 2. 5km and a range resolution of 1. 5km were assumed for this study

由BarrickHF雷达海洋回波散射截面方程出发,求出单位波束宽、单位海域的海浪回波散射截面。并用一天线口径为25km,分辨率为1.5km的雷达系统,研究了海来波对HF雷达检测海面上雷达截面积为30dBm2的小船目标和50dBm2的大船目标的影响。

 
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