Proceedings Article10.1109/SCEECS.2012.6184744
Linear frequency modulation waveform synthesis
Kiran Patel,Usha Neelakantan,Shalini Gangele,J. G Vacchani,Nilesh M. Desai +4 more
- 01 Mar 2012
- pp 1-4
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TL;DR: In this paper, the time frequency analysis and generation of LFM waveform using Direct Digital Chirp Synthesis (DDCS) was performed on a FPGA for the Synthetic Aperture Radar (SAR) application.
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Abstract: Pulse compression plays an important role in design of the radar system. Pulse compression using linear frequency modulation techniques are very popular in modern radar. The linear frequency modulation is used to resolve two small targets that are located at long range with very small separation between them. The primary focus of this paper is the time frequency analysis and generation of LFM waveform using Direct Digital Chirp Synthesis (DDCS). This approach has been implemented on a Field Programmable Gate Array (FPGA) for the Synthetic Aperture Radar (SAR) application.
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Citations
Pulse compression using linear frequency modulation technique
V. J. Arya,V. Subha +1 more
- 06 Jul 2017
TL;DR: The design to develop and simulate pulse compression and matched filter algorithm in MATLAB to study the LFM pulse compression technique for tracking the launch vehicle so as to check whether it had followed the predetermined path or not.
12
High frequency Chirp signal generator using multi DDS approach on FPGA
Anitha Bhavani Chekka,Naga Jyothi Aggala +1 more
- 03 Jun 2021
TL;DR: In this paper, a linear frequency modulated (LFM) waveform is generated using a Direct Digital Synthesizer (DDS) and system generator Xilinx block set.
2
ISAR Imaging for Nonco-operative Targets Based on Sharpness Criterion Under Low SNR
Zhijun Yang,Xiaoheng Tan,Weiming Tian,Xichao Dong,Chang Cui +4 more
TL;DR: This study proposes an efficient ISAR imaging approach for non-cooperative targets under low SNR, utilizing an adaptive de-noising filter and compensating factors extracted from prominent scatterers to mitigate phase modulation and spatial-variant errors.
1
Design of a Low-Cost and Configurable Radar for Border Security
M. Molope,Amit Mishra +1 more
TL;DR: In this paper , a low-cost configurable software defined radio (SDR) radar for border safeguarding is presented, which is used to detect humans, cars, animals, and airborne targets.
1
•Journal Article
Implementation of Pulse Compression for Space Applications
Arya V. J,Subha .V +1 more
TL;DR: This paper deals with the design to develop and simulate pulse compression and matched filter algorithm in MATLAB to study the LFM pulse compression technique.
References
Fpga-based chirp generator for high resolution uav sar
Ming Yam Chua,Voon Chet Koo +1 more
TL;DR: Two algorithms based on the Memory-based architecture and the Direct Digital Synthesizer (DDS) architecture are presented and measurement results indicate that the DDS chirp generator is a preferred choice for high-resolution SAR application.
ISRO's programmable digital waveform generator
TL;DR: Design and development of programmable and generic digital waveform generator (DWG) system based on Xilinx Virtex XCV600 FPGA and high-speed DAC is carried out at the Space Applications Center.
6
High density FPGA based waveform generation for radars
Roy Taniza,Kaushal Jadia,G. S. N Raju,M Chandramohan +3 more
- 10 May 2010
TL;DR: The implementation of waveform generation and upconversion method are described in this paper with a simplified digital implementation technique using FPGAs (Field Programmable Gate Array) so as to meet the timings in crucial applications.
6