Abstract Ocean heat content (OHC) is one of the most relevant metrics tracking current global heating. Therefore, simulated OHC time series are a cornerstone for assessing scientific performance Earth system models and climate models. Here we present detailed analysis change in simulations historical (1850–2014) performed with two pairs CMIP6 models: U.K. System Model 1 (UKESM1.0) HadGEM3-GC3.1...

The NASA Telerobotic Research Project is exploring the feasibility of using robots in space for on-orbit assembly, maintenance, and repair operations. Dual-arm satellite grappling is one of its more challenging tasks. The task involves the integration of technologies developed in the Sensing and Perception (S&P) Subsystem for object acquisition and tracking, and the Manipulator Control and Mech...

This research applied Proportion and Integration (PI) type fuzzy methods for mobile satellite antenna control system design. The detailed block diagram of a satellite antenna tracking system is very lousy; it is very difficult to obtain the key parameters for analyses and simulation. Thus a simplified model of antenna pitching or yawing control system is applied to speed up the design and obtai...

37 INTRODUCTION In recent years, owing to the growing user demand for on-the-move global broadband communications, a new type of satellite terminal has emerged, known as Earth stations on moving platforms (ESOMPs). ESOMP terminals use small antennas with tracking systems and advanced modulation and coding schemes that allow them to provide two-way, high-speed communications from aircraft, marit...

This study identifies the precursor signals of convective initiation within sequences of 1-km-resolution visible (VIS) and 4–8-km infrared (IR) imagery from the Geostationary Operational Environmental Satellite (GOES) instrument. Convective initiation (CI) is defined for this study as the first detection of Weather Surveillance Radar-1988 Doppler (WSR-88D) reflectivities 35 dBZ produced by conv...

To further describe movement patterns and distribution of East Pacific green turtles (Chelonia mydas agassizii) and to determine threat levels for this species within the Eastern Pacific. In order to do this we combined published data from existing flipper tagging and early satellite tracking studies with data from an additional 12 satellite tracked green turtles (1996-2006). Three of these wer...

Digital image have been expanding in usage. The importance of image compression algorithms have been increased, to produce smaller file size with a lower computational requirement. The wavelet transform offers a natural decomposition of images at multiple resolutions, since the wavelet transform can decompose images into various multiresolution subbands, where the correlation exists. A novel te...

Combining the technologies of the satellite formation flying with the satellite to satellite tracking (SST), the effect of satellite formation flying on autonomous navigation is analyzed in this paper. Considering the effect of satellite formation flying, the autonomous navigation system with relative inertial-position vector measurement is proposed firstly. Then, observability of the system wi...