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Center Independent Research & Development: GSFC IRAD

Cubesat Compatible Digital Back-End and Low-Noise Front-End for P-band Signals of Opportunity Remote Sensing

Completed Technology Project

Project Introduction

The effort proposed will serve to develop a technology and science algorithm to enable measurements of root zone soil moisture (RZSM) using P-band signals of opportunity (SoOp) remote sensing from a low-cost cubesat platform. RZSM is critical for land surface hydrology and in crop forecast models.

The objectives of this project are: (1) use commercial off-the-shelf (COTS) components to develop and test a digital back-end to perform the required signal processing of narrowband incoming communication signals, (2) design, fabricate and test a miniaturized version of the low-noise front-end (LNFE) based on the signals of opportunity airborne demonstrator (SoOp-AD, IIP-13) and (3) support soil-moisture retrieval algorithm development using datasets from tower experiment at Purdue University and SoOp-AD observations.

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