Notes for Control Design Example of Antenna chap1-5

Notes for Control Design Example of Antenna chap1-5

Porcovsky Lv3
  2025-06-09 10:20:45 2025-06-09 10:20:45 创建   2025-06-12 11:46 2025-06-12 11:46 更新    

JPL实验室做深空探测天线的那帮家伙弄出来的控制系统设计全流程，从系统建模、扰动建模、参数辨识、控制器设计一应俱全，很有启发意义的

1.Short Description of the Antenna Control System

1.1 组成

The antenna controller consists of two independent subsystems: azimuth and elevation controllers （转台或者就是云台）

azimuth (vertical)

elevation (horizontal)

1.2 控制框图

Velocity Loop:

image-20250608211111780

Position-Loop

image-20250608211152610

2. MODELING

2.1 Analytical Models

image-20250608211313780

2.1.1 Structural Model

image-20250608211346020

2.1.2 Drive Model

image-20250608211408466

2.2 Models from Identification

The white noise is a random signal of even spectrum within the antenna bandwidth; hence each frequency component of the antenna dynamics is excited evenly

White Noise Testing of the Antenna

The sweep-sine excites antenna resonances, causing wear, and excites antenna backlash since resonance forces exceed antibacklash torques.

主要是担心结构磨损和反冲backlash

image-20250608211539011

2.2.1 Open loop test

image-20250608211557908

2.2.2 Closed loop test

image-20250608211614912

2.3 Model Reduction

Additionally, the measurement noise is included in the model

5d58a8662348f41efac437c9d4b8c2a

Balanced Model Reduction with Hankel singular values (HSV)

image-20250608211820687

HANKEL MATRIX

image-20250608211842410

image-20250608211857429

image-20250608211906555

  • 标题: Notes for Control Design Example of Antenna chap1-5
  • 作者: Porcovsky
  • 创建于 : 2025-06-09 10:20:45
  • 更新于 : 2025-06-12 11:00:46
  • 链接: https://pocro.github.io/2025/06/09/Notes for Control Design example for antenna/
  • 版权声明: 本文章采用 CC BY-NC-SA 4.0 进行许可。
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此页目录
Notes for Control Design Example of Antenna chap1-5
  1. 1.Short Description of the Antenna Control System
    1. 1.1 组成
    2. 1.2 控制框图
  2. 2. MODELING
    1. 2.1 Analytical Models
      1. 2.1.1 Structural Model
      2. 2.1.2 Drive Model
    2. 2.2 Models from Identification
      1. 2.2.1 Open loop test
      2. 2.2.2 Closed loop test
    3. 2.3 Model Reduction
      1. Balanced Model Reduction with Hankel singular values (HSV)
      2. HANKEL MATRIX