Ground Target Tracking of a Temporarily Invisible Target due to Topographic Constraints

Date

2013-04-26

Author

Alat, Goken
Leblebicioğlu, Mehmet Kemal
Baykal, Buyurman

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

111
views

0
downloads

It is possible that topographic constraints hide targets in ground target tracking. It is important that hidden targets are tracked effectively when they are invisible during hidden portions of their motion. In addition to that, existence of heavy clutter makes the problem even more challenging. To address this problem, an airborne GMTI radar with a VSIMM-PDAF tracker is considered. Traditional approaches make assumptions regarding the motion of the target during hidden modes, e. g., constant velocity assumption. However, in reality such assumptions do not model the true target behavior and the track is dropped if the assumption is not satisfied. To mitigate the target drop problem a new approach is presented in this paper. Firstly, a stop model is integrated into the VSIMM-PDAF algorithm. Using the flexibility of the stop model, then secondly a hide model is developed. The hide model enables the tracker to track the targets independent of the time spent and independent of the target velocity during the hidden mode. The root mean square position error and velocity error performances of the algorithm show that there exists a short recovery period in which there is a rise in error whenever the target becomes visible again and that tracking continues thereafter.

Subject Keywords

Dense clutter, PDAF, VSIMM, Hide model, Topographic constraint, Ground Target Tracking

URI

https://hdl.handle.net/11511/54339

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Track Loss versus Computation Time Dilemma in Multitarget Ground Target Tracking Performance Korkmaz, Yusuf; Baykal, Buyurman (2013-07-12) Tracking of multiple ground targets with airborne Ground Moving Target Indicator (GMTI) sensor measurements is a challenging problem where heavy and dense false alarms with high target density are inevitably encountered in the surveillance scenes. Hence, optimal approaches require heavy computational load where the duration of overall computation rises exponentially with the number of target tracks and measurements in observation per scan. Consequently, more practical suboptimal approaches, such as Linear M...
Performance Comparison of Target Tracking Algortihms in Underwater Environment Ege, Emre; Saranlı, Afşar (2008-04-22) Target tracking is one the most fundamental elements of a radar system. The aim of target tracking is the reliable estimation of a target's true state based on a time history of noisy sensor observations. In real life, the sensor data may include substantial noise. This noise can render the raw sensor data unsuitable to be used directly. Instead, we must filter the noise, preferably in an optimal manner. For land, air and surface marine vehicles, very successful filtering methods are developed. However, bec...
A variable structure - autonomous - interacting multiple model ground target tracking algorithm in dense clutter Alat, Gökçen; Leblebicioğlu, Mehmet Kemal; Department of Electrical and Electronics Engineering (2013) Tracking of a single ground target using GMTI radar detections is considered. A Variable Structure- Autonomous- Interactive Multiple Model (VS-A-IMM) structure is developed to address challenges of ground target tracking, while maintaining an acceptable level computational complexity at the same time. The following approach is used in this thesis: Use simple tracker structures; incorporate a priori information such as topographic constraints, road maps as much as possible; use enhanced gating techniques to ...
Target tracking with phased array radar by using adaptive update rate İpek, Özlem; Kuzuoğlu, Mustafa; Department of Electrical and Electronics Engineering (2010) In radar target tracking problems, it may be required to use adaptive update rate in order to maintain the tracking accuracy while allowing the radar to use its resources economically at the same time. This is generally the case if the target trajectory has maneuvering segments and in such a case the use of adaptive update time interval algorithms for estimation of the target state may enhance the tracking accuracy. Conventionally, fixed track update time interval is used in radar target tracking due to the...
On Information Measures based on Particle Mixture for Optimal Bearings-only Tracking Skoglar, Per; Orguner, Umut; Gustafsson, Fredrik (2009-03-14) In this work we consider a target tracking scenario where a moving observer with a bearings-only sensor is tracking a target. The tracking performance is highly dependent on the trajectory of the sensor platform, and the problem is to determine how it should maneuver for optimal tracking performance. The problem is considered as a stochastic optimal control problem and two sub-optimal control strategies are presented based on the Information filter and the determinant of the information matrix as the optimi...

Citation Formats

G. Alat, M. K. Leblebicioğlu, and B. Baykal, “Ground Target Tracking of a Temporarily Invisible Target due to Topographic Constraints,” 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54339.