Zero-miss-distance guidance law based on line-of-sight rate measurement only

2001 ◽  
Author(s):  
Pini Gurfil
Keyword(s):  
Line Of Sight ◽  
Rate Measurement ◽  
Guidance Law ◽  
On Line ◽  
Miss Distance

AN ADAPTIVE PROPORTIONAL NAVIGATION GUIDANCE LAW FOR INTERCEPTION OF A MANEUVERING TARGET

2005 ◽  
Vol 29 (2) ◽  
pp. 195-209
Author(s):  
Dany Dionne ◽  
Hannah Michalska
Keyword(s):  
A Priori ◽  
Time Instant ◽  
Proportional Navigation ◽  
Maneuvering Target ◽  
Guidance Law ◽  
Hierarchical Decision ◽  
On Line ◽  
Priori Information ◽  
Miss Distance ◽  
Proportional Navigation Law

A new adaptive proportional navigation law for interception of a maneuvering target is presented. The approach employs a bank of guidance laws and an on-line governor to select the guidance law in effect at each time instant. The members of the bank are the proportional navigation law and a companion law suitable for a target moving with a constant acceleration. The governor is a hierarchical decision rule which uses the outputs from a maneuver detector and the available a-priori information about the expected number of evasive maneuvers. Simulation results demonstrate that the adaptive approach leads to a reduction in the miss distance as compared with cases where only a single non-adaptive guidance law is available.

Evaluation of Guidance Laws Performance Sing Genetic Algorithm

2014 ◽  
Vol 598 ◽  
pp. 723-730
Author(s):  
Mohamed Zakaria ◽  
Talaat Ibrahim ◽  
Alaa El Din Sayed Hafez ◽  
Hesham Abdin
Keyword(s):  
Genetic Algorithm ◽  
Differential Geometry ◽  
Standard Deviation ◽  
Optimization Process ◽  
Line Of Sight ◽  
Proportional Navigation ◽  
Guidance Law ◽  
Simulation Results ◽  
Miss Distance ◽  
Guidance Laws

Several conditions affect the performance of guidance law like target parameters or delayed line of sight rate. A variable navigation ratio is used to enhance the performance of guidance law. In this paper a Genetic Algorithm is used to formulate different forms of variable gains and measure the miss distance. An optimization process is running to find the minimum miss distance. The average values and standard deviation of miss distance for all genetic algorithm individuals are calculated to measure the performance and robustness of guidance law. Two guidance laws are considered proportional navigation (PN) and differential geometry (DG). The simulation results show that the proportional navigation is superior to differential geometry performance in the presence of delayed line of sight rate.

scholarly journals Guidance Law Based on Line-of-Sight Rate Information Considering Uncertain Modeled Dynamics

2018 ◽  
Vol 3 (6) ◽  
pp. 195-203
Author(s):  
Saori Nakagawa ◽  
Takeshi Yamasaki ◽  
Hiroyuki Takano ◽  
Isao Yamaguchi
Keyword(s):  
Line Of Sight ◽  
Guidance Law ◽  
Rate Information ◽  
On Line

Collision Avoidance Based on Line-of-Sight Angle

2017 ◽  
Vol 89 (1-2) ◽  
pp. 139-153 ◽  
Author(s):  
Venanzio Cichella ◽  
Thiago Marinho ◽  
Dušan Stipanović ◽  
Naira Hovakimyan ◽  
Isaac Kaminer ◽  
...  
Keyword(s):  
Collision Avoidance ◽  
Line Of Sight ◽  
On Line

scholarly journals Sea breeze signatures on line-of-sight microwave links in tropical coastal areas

Radio Science ◽  
2007 ◽  
Vol 42 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
L. Ram Gopal Reddy ◽  
B. M. Reddy
Keyword(s):  
Sea Breeze ◽  
Coastal Areas ◽  
Line Of Sight ◽  
On Line

3D Nonlinear Guidance Law for Bank-to-Turn Missile

2011 ◽  
Vol 317-319 ◽  
pp. 727-733
Author(s):  
Shuang Chun Peng ◽  
Liang Pan ◽  
Tian Jiang Hu ◽  
Lin Cheng Shen
Keyword(s):  
Three Dimensional ◽  
Lyapunov Theory ◽  
Line Of Sight ◽  
Rate Model ◽  
Guidance Law ◽  
Terminal Constraints ◽  
Guidance Laws ◽  
3D Guidance ◽  
Guidance Model ◽  
Vector Description

A new three-dimensional (3D) nonlinear guidance law is proposed and developed for bank-to-turn (BTT) with motion coupling. First of all, the 3D guidance model is established. In detail, the line-of-sight (LOS) rate model is established with the vector description method, and the kinematics model is divided into three terms of pitching, swerving and coupling, then by using the twist-based method, the LOS direction changing model is built for designing the guidance law with terminal angular constraints. Secondly, the 3D guidance laws are designed with Lyapunov theory, corresponding to no terminal constraints and terminal constraints, respectively. And finally, the simulation results show that the proposed guidance law can effectively satisfy the guidance precision requirements of BTT missile.

An improved adaptive integral line-of-sight guidance law for unmanned surface vehicles with uncertainties

2021 ◽  
Vol 108 ◽  
pp. 102488
Author(s):  
Yixin Su ◽  
Lili Wan ◽  
Danhong Zhang ◽  
Fanrong Huang
Keyword(s):  
Line Of Sight ◽  
Unmanned Surface Vehicles ◽  
Guidance Law

A method for robot navigation toward a moving goal with unknown maneuvers

Robotica ◽  
2005 ◽  
Vol 23 (6) ◽  
pp. 709-720 ◽  
Author(s):  
F. Belkhouche ◽  
B. Belkhouche
Keyword(s):  
Obstacle Avoidance ◽  
Robot Navigation ◽  
A Priori ◽  
Line Of Sight ◽  
Polar Diagram ◽  
Guidance Law ◽  
Global Aspect ◽  
Combining Information ◽  
Mode A ◽  
Navigation Strategies

This paper deals with a method for robot navigation towards a moving goal. The goal maneuvers are not a priori known to the robot. Our method is based on the use of the kinematics equations of the robot and the goal combined with geometrical rules. First a kinematics model for the tracking problem is derived and two strategies are suggested for robot navigation, namely the velocity pursuit guidance law and the deviated pursuit guidance law. It turns out that in both cases, the robot's angular velocity is equal to the line of sight angle rate. Important properties of the navigation strategies are discussed and proven. In the presence of obstacles, two navigation modes are used: the tracking mode, which has a global aspect and the obstacle avoidance mode, which has a local aspect. In the obstacle avoidance mode, a polar diagram combining information about obstacles and directions corresponding to the pursuit is constructed. An extensive simulation study is carried out, where the efficiency of both strategies is illustrated for different scenarios.

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