The effect of phantom-bit technology on the performance of phased array seeker detection in the case of the initial beam angle

Liu, Tingting; Qin, Wen; Yin, Jun

doi:10.1016/j.ijleo.2016.08.001

Cited by 8 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the beam control principle [2], design θ = R * θ BC , then θ B = (1 + R * ) θ BC . Moreover, the angular rate gyro scale K g in the missile high-precision inertial navigation system has a small fluctuation range (and can be controlled within the range of 10 −3 during the whole flight), which means K g ∼ = 1.…”

Section: A Mathematical Modelmentioning

confidence: 99%

“…Hence, the performance of the digital phase shifter determines the performance of the seeker beam scanning. Considering cost and complexity, phantom-bit technology (PBT) is widely applicable in practical engineering [2]. Although PBT can improve seeker beam scanning accuracy, the beam pointing error appears because of the seeker using open-loop control to achieve beam pointing control.…”

Section: Introductionmentioning

confidence: 99%

“…Bai et al provide in-depth analysis of the work of the parasitic loop in the guidance loop induced by the DRE problem on the gimbal phased array seeker and the influence of missile body disturbance on the seeker performance [8]. Lu et al analyzed the effect of the phased array seeker with PBT for the missile detection and guidance system [2]. According to the antenna element shift phase, they analyzed the antenna element shift phase law and the causes of beam pointing error under phantom-bit conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Novel Online Estimation and Compensation Method for Strapdown Phased Array Seeker Disturbance Rejection Effect Using Extended State Kalman Filter

Lin

Wang

2019

IEEE Access

View full text Add to dashboard Cite

The radome error and beam pointing error found commonly in the strapdown phased array radar seeker can cause coupling between the missile body motion and the seeker model, impacting the output precision of the seeker and causing the disturbance rejection effect (DRE). Aiming to address the serious impact of DRE on the missile guidance and control system, a strapdown phased array radar seeker DRE parasitic loop (considering radome error and beam pointing error) is established. The DRE parasitic loop is analyzed. The main aim of this paper was to develop a novel online estimation and compensation method for a DRE parasitic loop using an extended state Kalman filter, which was compared with an extended Kalman filter and a strong tracking unscented Kalman filter. The simulation results show that the proposed online estimation and compensation method for the DRE parasitic loop can estimate the radome error slope and beam pointing error slope stably and accurately from the initial velocity pointing error input and the large initial estimation error. Effective suppression of the DRE problem and compensation for the line-of-sight angular rate output in real time is achieved. Furthermore, the guidance system performance and precision are both improved.INDEX TERMS Active disturbance rejection control, beam pointing error, disturbance rejection effect parasitic loop, extended state Kalman filter, radome error.

show abstract

Section: A Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Online Estimation and Compensation Method for Strapdown Phased Array Seeker Disturbance Rejection Effect Using Extended State Kalman Filter

Lin

Wang

2019

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Furthermore, the phased array radar seeker uses a digital shifter to control the antenna beam pointing but, in principle, this is open-loop control. Even if phantom-bit technology is used to optimally control the beam pointing, it remains impossible to precisely and stably control the beam pointing angle, leading to not only the coupling of the attitude disturbance in the guidance signals but also the coupling with the beam pointing error [7]. Meanwhile, the presence of the radome couples the guidance signals obtained by the seeker with the radome refraction error.…”

Section: Introductionmentioning

confidence: 99%

Barrier Lyapunov Function Based Integrated Missile Guidance and Control Considering Phased Array Seeker Disturbance Rejection Rate

Lin

Wang

2022

IEEE Access

View full text Add to dashboard Cite

A two-dimensional missile-target engagement geometry is established considering the effect of the disturbance rejection rate (DRR) problem caused by phased array radar beam pointing error and radome refraction error in the guidance and control system. Compared with the traditional two-dimensional missile-target engagement geometry, the established model clearly shows the effect of the disturbance rejection rate problem on the missile line of sight and field-of-view constraint. The integrated missile guidance and control scheme is developed by adding the integral barrier Lyapunov function to dynamic surface control to satisfy the seeker field-of-view constraint while ensuring that the system has strong robustness. The target maneuvering and unmodeled disturbance with the effect of the DRR error slope as uncertain disturbances of the system and use the reduced-order extended state observer for online estimation. Moreover, the actuator deflection angle and angular rate constraints are guaranteed via the command filter. Stability analysis and numerical simulations show that the estimation and compensation of the seeker DRR error allow the proposed scheme to intercept a high-speed target accurately.INDEX TERMS integrated guidance and control, field-of-view constraint, disturbance rejection rate, barrier Lyapunov function

show abstract

Beam-pointing error compensation method of phased array radar seeker with phantom-bit technology

Qin

Liu

Xia

et al. 2017

Chinese Journal of Aeronautics

View full text Add to dashboard Cite

The effect of phantom-bit technology on the performance of phased array seeker detection in the case of the initial beam angle

Cited by 8 publications

References 9 publications

A Novel Online Estimation and Compensation Method for Strapdown Phased Array Seeker Disturbance Rejection Effect Using Extended State Kalman Filter

A Novel Online Estimation and Compensation Method for Strapdown Phased Array Seeker Disturbance Rejection Effect Using Extended State Kalman Filter

Barrier Lyapunov Function Based Integrated Missile Guidance and Control Considering Phased Array Seeker Disturbance Rejection Rate

Beam-pointing error compensation method of phased array radar seeker with phantom-bit technology

Contact Info

Product

Resources

About