A Hybrid Guidance Law for a Strapdown Seeker to Maintain Lock-on Conditions against High Speed Targets

Lee, Chae Heun; Hyun, Chul; Lee, Jang Gyu; Choi, Jin Yung; Sung, Sangkyung

doi:10.5370/jeet.2013.8.1.190

Cited by 24 publications

(20 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since then, PN law has been used virtually in all of the worlds' tactical radar, infrared and TV guided interceptors [1] and recently, has been widely used for tactical applications [3]. Since then, PN law has been used virtually in all of the worlds' tactical radar, infrared and TV guided interceptors [1] and recently, has been widely used for tactical applications [3].…”

Section: Augmented Proportional Navigation (Apn)mentioning

confidence: 99%

On an Optimized Fuzzy Supervized Multiphase Guidance Law

Rezaee

Seyedtabaii

2016

Asian Journal of Control

View full text Add to dashboard Cite

Proportional navigation (PN) is an effective guidance law in chasing a constant speed target. However, intercepting a maneuvering target requires extra provisions to contain target acceleration. This is observed in the next generation of guidance laws, namely augmented proportional navigation (APN) and the optimal guidance law (OGL). The other advanced guidance method is integral sliding mode (ISM), which exhibits superb low miss distance (MD), but unfortunately at the cost of disappointing effective lateral acceleration (C eff ), higher than the modest level that APN and OGL demand. Reducing both MD and C eff can be achieved using a multiphase algorithm. A setup of APN, OGL and ISM is proposed to integrate the strength of each and overcome their weaknesses. Hybrid algorithm smooth management is conducted by an optimally tuned fuzzy supervisory controller. The results indicate that in facing a constant acceleration target, an APN-ISM twin yields the best results, while in case of a constant jerk target an APN-OGL-ISM triplet renders excellent interception. Miss distance as low as 0.012m can be achieved with significantly lower control effort than required by ISM alone. The simulations results confirm the conclusions and illustrate the capacity of the algorithm in combating maneuvering targets.

show abstract

Section: Augmented Proportional Navigation (Apn)mentioning

confidence: 99%

On an Optimized Fuzzy Supervized Multiphase Guidance Law

Rezaee

Seyedtabaii

2016

Asian Journal of Control

View full text Add to dashboard Cite

show abstract

“…Xing et al 9 designed a FOV angle control guidance law through minimizing the velocity component perpendicular to the line-of-sight (LOS) to reduce the seeker look angle. Lee et al 10 derived a sliding mode guidance law to keep the look angle within the FOV angle by employing a Lyapunov-like function with a sliding mode control methodology. Sang and Tahk 11 proposed a guidance law switching logic between the original guidance law and the constant look angle guidance law using Lyapunov theory.…”

Section: Introductionmentioning

confidence: 99%

A parameter design strategy for seeker’s field-of-view constraint in impact angle guidance

Qin

Xia

Weixia

2015

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

This note studies the problem of impact angle guidance by considering the seeker's field-of-view angle constraint and proposes a new guidance parameter design strategy based on the classical time-to-go weighted impact angle optimal guidance law. To this end, firstly, the analytic expression of the field-of-view angle throughout the guidance process is presented. It is demonstrated that the max field-of-view angle can be controlled by designing the correct time-to-go weighted parameter and initial guidance conditions. Then, a guidance strategy, which includes the optimal guidance law, guidance condition selection, and guidance parameter design, is given. When using the strategy, the suitable time-to-go weighted parameter is modified to ensure the seeker's field-of-view angle would not exceed the boundary value. Finally, the results of a numerical simulation based on the simple missile-target kinematics are presented; these results validate the proposed strategy.

show abstract

“…With this approach, the stability regions of the parasite loop, involving the strapdown homing seeker, were analyzed in several studies [5][6][7][8]. As the second research direction, some efforts have also been made to devise new homing guidance laws, corresponding terminal homing guidance loops [9][10][11], and guidance filters for the strapdown seeker [12][13][14].…”

Section: Introductionmentioning

confidence: 99%