VLSI architecture for SAR data compression

Author

Jeong, H. ; Park, J.H. ; Ryu, H.Y. ; Kwon, J.B. ; Oh, Y.

Author_Institution

Dept. of Electr., POSTECH, Pohang, South Korea

Volume

38

Issue

2

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

427

Lastpage

440

Abstract

As a step towards a real-time signal aperture radar (SAR) correlator, custom very large scale integration (VLSI) architectures are developed. Considering the extremely short word length of the data, we derive three architectures with massive parallelism in bit space. Unlike frequency methods, no. degradation is introduced during convolution. Optimized for time and space, they are highly suited to VLSI implementation, and a small architecture with 80 taps operating at 10 MHz has been built using an FPGA

Keywords

VLSI; adders; application specific integrated circuits; computational complexity; convolution; correlators; data compression; field programmable gate arrays; image coding; image processing equipment; parallel architectures; pipeline processing; radar computing; radar imaging; synthetic aperture radar; 2D filter; ASIC chip; FPGA; Kronecker delta function; PCI board; SAR data compression; VLSI architecture; accumulator; adder tree; area-time computational complexity; azimuth compression; carry look-ahead adder; carry propagate adder; carry save adder; computational requirements; convolution; data recovery; fast architectures; frequency domain; highly regular architectures; image compression; massive parallelism; pipelining; range compression; real-time signal aperture radar correlator; sea-of-gates library; software package; time domain; Application specific integrated circuits; Computer architecture; Concurrent computing; Correlators; Data compression; Digital signal processing chips; Filtering; Filters; Synthetic aperture radar; Very large scale integration;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2002.1008977

Filename

1008977