Bambang Setiadi

An experimental network analyzer based ISAR system for studying SAR fundamentals

Earth observation from airborne and spaceborne platforms using synthetic aperture radar (SAR) has provided scientists and researchers with a deeper understanding of the planet for geological studies, weather forecasting, and disaster mitigation, among others. Aiming to develop our own spaceborne synthetic aperture radar for the purpose of environmental remote sensing, we have a program to test our system subcomponents on airborne and ground based systems. This paper presents the design and testing of a wideband inverse synthetic aperture radar (ISAR) system. This work will lead to the investigation of generating images from circularly polarized (CP) transmits and receive signals, improvement of related imaging algorithms for CP signals and suitable antenna design. Data measurement setup was constructed in an anechoic chamber with the use of a vector network analyzer (VNA) and automated rotary turntable to mount targets.

Analysis of Coastal Sedimentation Impact to Jakarta Giant Sea Wall Using PSI ALOS PALSAR

The Jakarta province proposed the Jakarta Giant Sea Wall as the waterfront city for the new urban settlement zone and the deep seaport for the new economic zone along the coastal areas at northern Jakarta. This letter investigated land deformation at 11 watersheds of the West Java Mega Urban Region using the persistent scatterer interferometry technique of the Advanced Land Observing Satellite phased-array-type L-band synthetic aperture radar data. The result shows that land deformation at the study area, particularly the Bandung city area gives a significant impact to sedimentation velocity along the eastern Jakarta strait, particularly the deep seaport for 43 years later. This letter recommends to evaluate land conservation at upland watersheds and the well management of artificial canals to reduce the impact of sedimentation at the Jakarta strait, particularly the new depth seaport.

Analysis of land deformation velocity using PSI ALOS PALSAR: Impact of coastal sedimentation to future Jakarta giant sea wall and waterfront city

In this research, we held study on land deformation at eleven watersheds that influence the sedimentation around Jakarta strait using PSI technique of ALOS PALSAR images. The result shows that land deformation at Jawa Barat province, especially Bandung city area gives significant impact to sedimentation velocity along eastern Jakarta strait, especially deep seaport as new economic zone of Jakarta Giant Sea Wall plan. We recommend to evaluate land conservation at Jawa Barat province and well management of artificial canals at eastern Jakarta strait to reduce the sedimentation.

Analysis of Land Deformation on Slope Area using PS InSAR. Case Study: Malang Area

The geographical position of Indonesia located between two continents and oceans is strategic, but at large risk of experiencing various disasters. Climate change and vulnerable location (surrounded by plates and geological faults in the Earths crust) creates an earthquake-prone region and causes land/mudslides. In this paper, PS InSAR method (Persistent Scatterer Interferometric Synthetic Aperture Radar) is implemented to Phased Array type L-band Synthetic Aperture Radar (PALSAR) data to study the potential damage caused by the earthquake or volcanic eruption in Malang vicinity. By comparing the amplitude images periodically, shifting soil can be determined using precise orbital information. The analysis showed a significant decrease of land deformation on slope area in Klojen district in Malang city, reached up to –7.128 mm/year.The geographical position of Indonesia located between two continents and oceans is strategic, but at large risk of experiencing various disasters. Climate change and vulnerable location (surrounded by plates and geological faults in the Earths crust) creates an earthquake-prone region and causes land/mudslides. In this paper, PS InSAR method (Persistent Scatterer Interferometric Synthetic Aperture Radar) is implemented to Phased Array type L-band Synthetic Aperture Radar (PALSAR) data to study the potential damage caused by the earthquake or volcanic eruption in Malang vicinity. By comparing the amplitude images periodically, shifting soil can be determined using precise orbital information. The analysis showed a significant decrease of land deformation on slope area in Klojen district in Malang city, reached up to −7.128 mm/year.