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  1. Science in China Series : Information Sciences
  2. Science in China Series : Information Sciences : Volume 57
  3. Science in China Series : Information Sciences : Volume 57, Issue 6, June 2014
  4. An improved OFDM chirp waveform used for MIMO SAR system
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Science in China Series : Information Sciences : Volume 61
Science in China Series : Information Sciences : Volume 60
Science in China Series : Information Sciences : Volume 59
Science in China Series : Information Sciences : Volume 58
Science in China Series : Information Sciences : Volume 57
Science in China Series : Information Sciences : Volume 57, Issue 12, December 2014
Science in China Series : Information Sciences : Volume 57, Issue 11, November 2014
Science in China Series : Information Sciences : Volume 57, Issue 10, October 2014
Science in China Series : Information Sciences : Volume 57, Issue 9, September 2014
Science in China Series : Information Sciences : Volume 57, Issue 8, August 2014
Science in China Series : Information Sciences : Volume 57, Issue 7, July 2014
Science in China Series : Information Sciences : Volume 57, Issue 6, June 2014
A 6-bit 2 GS/s ADC in 65 nm CMOS
A low offset chopper amplifier with three-stage nested Miller configuration
Switching performances of static induction thyristor with buried-gate structure
Total ionizing radiation effects of 2-T SONOS for 130 nm/4 Mb NOR flash memory technology
An improved OFDM chirp waveform used for MIMO SAR system
A novel threshold-based quadrature signaling scheme for cooperative networks
Access point selection in heterogeneous wireless networks using belief propagation
A new self-learning optimal control laws for a class of discrete-time nonlinear systems based on ESN architecture
Polynomial-time verification of diagnosability of fuzzy discrete event systems
A power efficient 1.0625-3.125 Gb/s serial transceiver in 130 nm digital CMOS for multi-standard applications
Profile based routing in vehicular ad-hoc networks
Optimal phase searching of PTS using modified genetic algorithm for PAPR reduction in OFDM systems
Linearity analysis of closed-loop capacitive accelerometer due to distance mismatch between plates and the influence of compensation capacitor array
A high speed multi-level-parallel array processor for vision chips
Dynamic load distribution with hop-by-hop forwarding based on max-min one-way delay
Joint source-channel coded multidimensional modulation for variable-length codes
End-to-end delay estimation for multi-hop wireless networks with random access policy
A simple amplify-and-forward opportunistic relaying based on outdated channel state information
Constructions of QC LDPC codes based on integer sequences
Adaptive joint bandwidth and power allocation in heterogeneous wireless access environment
Volumetric data modeling and analysis based on seven-directional box spline
A new integrated energy-saving scheme in green Fiber-Wireless (FiWi) access network
Coverage and connectivity-aware clustering within k hops in wireless sensor and actuator networks
A novel compact simulation interface specification
Requirements model driven adaption and evolution of Internetware
Science in China Series : Information Sciences : Volume 57, Issue 5, May 2014
Science in China Series : Information Sciences : Volume 57, Issue 4, April 2014
Science in China Series : Information Sciences : Volume 57, Issue 3, February 2014
Science in China Series : Information Sciences : Volume 57, Issue 2, February 2014
Science in China Series : Information Sciences : Volume 57, Issue 1, January 2014
Science in China Series : Information Sciences : Volume 56
Science in China Series : Information Sciences : Volume 55
Science in China Series : Information Sciences : Volume 54
Science in China Series : Information Sciences : Volume 53
Science in China Series : Information Sciences : Volume 52
Science in China Series : Information Sciences : Volume 51
Science in China Series : Information Sciences : Volume 50
Science in China Series : Information Sciences : Volume 49
Science in China Series : Information Sciences : Volume 48
Science in China Series : Information Sciences : Volume 47
Science in China Series : Information Sciences : Volume 46
Science in China Series : Information Sciences : Volume 45
Science in China Series : Information Sciences : Volume 44

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An improved OFDM chirp waveform used for MIMO SAR system

Content Provider SpringerLink
Author Wang, Jie Liang, XingDong Ding, ChiBiao Chen, LongYong Zhou, LiangJiang Dong, YongWei
Copyright Year 2014
Abstract Special attention has been devoted to multi-input multi-output (MIMO) synthetic aperture radar (SAR) systems in recent years. The applications of MIMO SAR systems which involve 3D imaging, highresolution wide-swath remote sensing, and multi-baseline interferometry are seriously limited to the orthogonal waveforms. Although orthogonal frequency division multiplexing (OFDM) chirp waveforms can be used for MIMO SAR systems to avoid intra-pulse interferences, there is a small frequency shift between the transmitted OFDM pulses. This vulnerable shift, which can not only affect the waveform orthogonality, but also introduce residual phase error, renders the OFDM waveforms impractical. In this paper, an improved OFDM chirp waveform which works without the mentioned shift is presented, along with the novel modulation and efficient demodulation procedures. Comparison between the improved and the conventional OFDM chirp waveforms is detailed. The influence of random noise, quantization error, and Doppler shift on the orthogonality of OFDM waveform is also investigated in this paper. Theoretical analysis and simulation results illustrate the feasibility of this waveform scheme.
Starting Page 1
Ending Page 9
Page Count 9
File Format PDF
ISSN 1674733X
Journal Science in China Series : Information Sciences
Volume Number 57
Issue Number 6
e-ISSN 18691919
Language English
Publisher Science China Press
Publisher Date 2014-04-26
Publisher Place Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) chirp waveform synthetic aperture radar (SAR) quantization noise Doppler shift Information Systems and Communication Service
Content Type Text
Resource Type Article
Subject Computer Science
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