PierSight Blog
PierSight is building a constellation of SAR & AIS satellites to provide persistent ocean monitoring.

Varuna Paved the Way — Now Drone SAR & MATSYA Take Over
With Varuna’s legacy guiding us, 2025 launches new frontiers—Drone SAR takes flight, and MATSYA dives deep into maritime analytics.
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PierSight Space: Entrepreneurial Ecosystems for SpaceTech
This is a case study about PierSight written by IIM-A Ventures and originally published on their website.

Maritime Use Cases Of Synthetic Aperture Radar (SAR) Satellites
SAR satellites can monitor and surveil the global oceans for security, research, defense, and investment. Here are real-world applications of the technology.

Varuna Subsystems: Software-Defined Radio and Radar
The Digital and X-band Module is the central processing unit for radar and communication signals, optimized for compact signal processing and real-time communication, with design considerations for interference and radiation effects in space.
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Varuna Subsystems: Electronic Power Conditioner (EPC)/ DC-DC Converter
The Electronic Power Conditioner (EPC) converts raw DC voltage to required levels for subsystems like FPGA and AFE, featuring EMI filters for interference reduction, redundant circuits for reliability, and a closed-loop control system for stability under varying loads. It includes safety mechanisms like Overpower Protection and Fuse to prevent failures.

Varuna Subsystems: Reflectarray Antenna and Feed
The feed system enhances the efficiency of a deployable reflectarray antenna by reducing spillover loss, improving taper efficiency, and ensuring phase alignment for better signal strength. Key design challenges include compact storage, deployment accuracy, material selection, thermal distortions, and mechanical complexity.