Abstract
The concept of pulsed RADARs is associated with
Chirp Signal Transmission. Chirp signal provides high precision
in target resolvability with the flexibility of lower average power.
The transmitted Chirp Signal defines the resultant image
resolution, which varies from mission to mission. The objective of
this paper is to discuss the implementation of a FPGA based
runtime user configurable Chirp Signal Generator using the
Xilinx System Generator. The designed system is capable of
transmitting three different types of Chirp Signal; i.e.
Unidirectional Up-Chirp, Unidirectional Down-Chirp and
Bidirectional Chirp. The system can generate an output Chirp of
Bandwidth between 10 to 100MHz with a transmitted pulse
duration of between 1 to 10 Micro Seconds and a Pulse
Repetition Frequency of between 100 to 10000Hz. The sampling
frequency of the system is kept constant at 150MHz.
Hamza Mansoor Manya , Ashfaq Amjad Khan. (2013) FPGA Implementation of a Runtime User Configurable Chirp Signal Generator for Multi Mission Synthetic Aperture Radar Imaging , Journal of Space Technology , Volume 3, Issue 3.
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