Citation

Chua, Ming Yam and Sri Sumantyo, J. T. and Ji, Y. Q. (2019) An 8-Channels FPGA-Based Reconfigurable Chirp Generator for Multi-Band Full Polarimetric Airborne/Spaceborne CP-SAR. In: 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama). IEEE, pp. 876-881. ISBN 978-1-5386-5455-2

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Abstract

This paper outlines the development work of a new Field Programmable Gate Array (FPGA) based chirp generator from which the new chirp generator is capable of synthesizing 4 pairs of I & Q chirp signals. The paper first proposes a multi-channel Direct Digital Synthesis (DDS) based reconfigurable chirp generator architecture whereby the chirp signal properties for each channel are independently reconfigurable in real-time. In addition, a reconfigurable Timing and Control Unit (TCU) is embedded into the system to generate the important timing synchronization signals which are essential for SAR hardware system. The proposed chirp generator is implemented on a custom-designed FPGA-based hardware platform with 8 on-board independent channels of Digital-to-Analog Converter (DAC). In future, the system will be used in Josaphat Microwave Remote Sensing Laboratory (JMRSL) airborne and spaceborne dual-band (C/X) full polarimetric Circularly Polarized Synthetic Aperture Radar (CP-SAR) system.

Item Type:	Book Section
Uncontrolled Keywords:	Field programmable gate arrays
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7885-7895 Computer engineering. Computer hardware
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	20 Jan 2021 02:36
Last Modified:	20 Jan 2021 02:36
URII:	http://shdl.mmu.edu.my/id/eprint/7324

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