In traditional GNSS receiver architectures, the receiver normally acquires the visible satellite signals and keeps tracking them throughout their availability. Although this approach is perfectly viable for reliable and accurate positioning in most applications, tracking all satellites in view throughout the receiver power-on duration results in a significant penalty on power consumption in bat...

Combined with strong tracking filter (STF) theory, the Strong Tracking Square-Root Unscented Kalman Filter (UKF)-based satellite attitude determination algorithm is proposed in this paper. QR decomposition and Cholesyk decomposition are introduced in this paper, which improves the stability of filter. In addition, by introduced adaptive fading factor, the prediction error covariance matrix can ...

--------------------------------------------------------ABSTRACT-------------------------------------------------The project presents recognize of an aircraft in satellite image using template matching for accurate detection and tracking. High resolution multispectral satellite images with multi-angular look capability have tremendous potential applications. Here the system involves an object t...

This paper presents an implementation of predictive functional control for imagebased satellite attitude control. The approach considers Low Earth Orbit small satellites equipped with an on-board camera for interactive Earth observation. The control goal is to keep a target on the Earth surface in the satellite’s camera field of view during orbiting of the satellite above the target. The contro...

New complexes and adducts of xanthate the general formula [M(cyclopentyl xant.)2] xant.)2.nL] Where M= Mn(ΙΙ) Fe(ΙΙ), Co(ΙΙ), Ni(ΙΙ), Cu(ΙΙ) Zn(ΙΙ), (cyclopentyl xant.)2=[Cyclopentyl ligand], n=2 L= Pyridine, 3-acetyl pyridine & Quinoline n=1, ethylenediamine, (1,10)-phenanthroline, prepared has been evaluated based on their magnetic, electrical, physical characteristics. And spectral metho...

European eels (Anguilla anguilla) undertake a approximately 5000-kilometer (km) spawning migration from Europe to the Sargasso Sea. The larvae are transported back to European waters by the Gulf Stream and North Atlantic Drift. However, details of the spawning migration remain unknown because tracking eels in the Atlantic Ocean has, so far, eluded study. Recent advances in satellite tracking en...