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相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

449
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
449
Errors in Global Positioning System01:26

Errors in Global Positioning System

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Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
112
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

533
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
533
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

272
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
272
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

430
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
430
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

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In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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一种基于轨迹优化的网络移动雷达的反距离欺骗干扰方法.

Xiaofei Han1, Huafeng He1, Chuan He1

  • 1Department of Control Engineering, Rocket Force University of Engineering, Xi'an 710025, China.

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概括
此摘要是机器生成的。

本研究介绍了一种轨迹优化方法,以改善网络移动雷达系统的反干扰. 这种方法有效地减少了错误目标误判的可能性,提高了雷达对欺骗干扰的性能.

关键词:
FT误判概率 错误判断的可能性反假目标干扰的反假目标干扰.网络化的移动雷达.轨道优化轨道优化

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科学领域:

  • 雷达系统工程 雷达系统工程
  • 电子战是一种电子战.
  • 信号处理 信号处理

背景情况:

  • 网络移动雷达系统由于空间分布而面临反干扰效率的挑战.
  • 雷达位置错误 (RPE) 显著影响联网移动雷达系统的性能.

研究的目的:

  • 建议使用轨迹优化为网络移动雷达系统提供反距离欺骗干扰方法.
  • 在网络移动雷达操作中,尽量减少虚假目标 (FT) 误判概率.

主要方法:

  • 开发了一个网络移动雷达的反干扰方法,考虑雷达位置错误 (RPE).
  • 演了虚假目标 (FT) 误判概率的理论表达式.
  • 制定了一个轨迹优化模型,以尽量减少FT误判的可能性.

主要成果:

  • 验证了推导的概率表达式和雷达空间分布对FT误判的影响.
  • 证明拟议的方法有效地降低了FT误判的可能性.
  • 在高物理目标 (PT) 歧视概率下确认有效性能.

结论:

  • 雷达空间分布对于网络移动雷达系统的反干扰效率至关重要.
  • 轨迹优化提供了一个可行的解决方案,以减轻距离欺骗干扰.
  • 拟议的方法增强了网络移动雷达对复杂的干扰技术的弹性.