Translator Disclaimer
8 May 2012 Novel nonlinear phase distortion estimation in wideband linear frequency modulated waveform
Author Affiliations +
Recently, frequency modulated continuous wave (FMCW) technique has drawn a lot of attention in various applications where the high resolution performance is needed due to its cost-eectiveness and low complexity as well as the high resolution performance. One of degradation factors in the technique is the characteristics of nonlinear phase distortion in transmitted waveform. The phase distortion degrades the resolution performance, that is, the contrast and resolution of the obtained range prole or image can be degraded. Especially, as the system with FMCW technique requires higher resolution performance and longer range coverage, the degradation problem becomes more severe hence it can be limited to be utilized for long-range applications like synthetic aperture radar (SAR). This paper proposes the novel algorithms to estimate the nonlinear phase distortion without any expensive devices but only one reference delay line and provides a favorable condition for parallel processing in the algorithms. The estimate of the distortion can be utilized for designing predistortion to compensate it. Simulation result obtained with an arbitrarily generated nonlinear phase distortion, demonstrates that the proposed scheme has outstanding estimation performance.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Heeseong Yang, Joohwan Chun, and Sung-Chan Song "Novel nonlinear phase distortion estimation in wideband linear frequency modulated waveform", Proc. SPIE 8361, Radar Sensor Technology XVI, 83611I (8 May 2012);


Design of wideband real-time SAR imaging system
Proceedings of SPIE (December 31 2019)
Properties of chosen OFDM-generated radar waveforms
Proceedings of SPIE (February 11 2020)
Radar Waveforms
Proceedings of SPIE (December 28 1977)
A real time receive method of wideband radar based on...
Proceedings of SPIE (October 01 2011)

Back to Top