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Content Provider | IET Digital Library |
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Author | Qian, Rong Jiang, Defu Fu, Wei |
Abstract | Linear-frequency-modulated continuous-wave (LFMCW) radars with deramping technique have several advantages such as compact size, low cost, and easy implementation, compared to traditional pulse radars; however, the non-linear distortions caused by analogue modules, particularly power amplifiers, may deteriorate the radar detection performance. To solve this problem, a digital closed-loop compensation scheme for the LFMCW signal is proposed, which can compensate the LFMCW signal in real time, when the non-linear distortions change with the working environment. The proposed compensation scheme improves the detection performance, noticeably. Considering the speed limitations of field programmable gate arrays (FPGAs), the proposed scheme is implemented in an FPGA at an intermediate-frequency level, using a polyphase processing structure. |
Starting Page | 192 |
Ending Page | 198 |
Page Count | 7 |
ISSN | 17519675 |
Volume Number | 13 |
e-ISSN | 17519683 |
Issue Number | Issue 2, Apr (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-spr/13/2 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2018.5298 |
Journal | IET Signal Processing |
Publisher Date | 2018-09-07 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Amplifiers Analogue Module Closed Loop System Compensation CW Radar Deramping Technique Digital Closed-loop Compensation Scheme Field Programmable Gate Array FM Radar FPGA Implementation LFMCW Signal Compensation LFMCW Signal Nonlinear Distortion Linear-frequency-modulated Continuous-wave Radars Logic Circuit Nonlinear Distortion Power Amplifier Radar Detection Radar Detection Performance Radar Equipment Radar Signal Processing Signal Detection System And Application Traditional Pulse Radars |
Content Type | Text |
Resource Type | Article |
Subject | Signal Processing Electrical and Electronic Engineering |
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