Open AccessDesign of Doppler parameters estimation circuit
Author(s) -
Guo Chenguang,
Xu Jiancheng,
Zhang Hui
Publication year - 2019
Publication title -
iet circuits, devices and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 49
eISSN - 1751-8598
pISSN - 1751-858X
DOI - 10.1049/iet-cds.2018.5478
Subject(s) - computer science , compensation (psychology) , doppler effect , field programmable gate array , synthetic aperture radar , process (computing) , electronic engineering , motion compensation , printed circuit board , circuit design , computer hardware , algorithm , engineering , artificial intelligence , embedded system , psychology , physics , astronomy , psychoanalysis , operating system
This paper designs an engineering realisation of Doppler parameters estimation circuit for synthetic aperture radar (SAR) imaging system based on motion compensation. The algorithms for Doppler centroid frequency and Doppler frequency rate estimations are selected in advance. By optimising the mapping process from algorithm to hardware circuit and selecting proper floating‐point data bit width, logical resources can be reduced significantly. Verified with an FPGA‐based PCB platform, the proposed design works properly and with controllable computing error.