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The Earth Sciences Decadal Survey identifies a multiangle, multispectral, high-accuracy polarization imager as one requirement for the Aerosol-Cloud-Ecosystem (ACE) mission. JPL has been developing a Multiangle SpectroPolarimetric Imager (MSPI) as a candidate to fill this need. A key technology development needed for MSPI is on-board signal processing to calculate polarimetry data as imaged by each...
Multi-dimensional (MD) Discrete Fourier Transform (DFT) is a key kernel algorithm in many signal processing algorithms, including radar data processing and medical imaging. Although there are many efficient software solutions, they are not suitable for applications that require fast response time. In this paper we focus on FPGA-based implementation of MDDFT. The proposed architecture is based on a...
This paper describes the design and implementation of a high-performance modular exponentiation arithmetic unit based on Montgomery algorithm and FIPS method. We present an effective method of improving FIPS pipeline efficiency and optimizing the memory occupation. First, create multiple data paths to the multipliers input ports to use the units in multiplex; second, insert the zero value into the...
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