Now showing items 1-5 of 5

  • Beam Footprint Detection and Tracking for Non-cooperative Bistatic SAR 

    Yan, F.; Chang, W.; Li, X.; Zhang, Q. (Společnost pro radioelektronické inženýrství, 2016-09)
    In non-cooperative bistatic synthetic aperture radar (SAR), the position of transmitter’s beam footprint should be detected and tracked in real-time to perform beam synchronization. Theoretical analysis shows that ...
  • An Efficient Forensic Method for Copy–move Forgery Detection based on DWT-FWHT 

    Yang, B.; Sun, X.; Chen, X.; Zhang, J.; Li, X. (Společnost pro radioelektronické inženýrství, 2013-12)
    As the increased availability of sophisticated image processing software and the widespread use of Internet, digital images are easy to acquire and manipulate. The authenticity of the received images is becoming more and ...
  • An Efficient Super-Resolution DOA Estimator Based on Grid Learning 

    Wei, Z.; Li, X.; Wang, B.; Wang, W.; Liu, Q. (Společnost pro radioelektronické inženýrství, 2019-12)
    Direction-of-arrival (DOA) estimation based on sparse signal reconstruction (SSR) is always vulnerable to off-grid error. To address this issue, an efficient super-resolution DOA estimation algorithm is proposed in this ...
  • The Impact of Sensing Range on Spatial-Temporal Opportunity 

    Zhang, X.; Li, X.; Yun, Z. (Společnost pro radioelektronické inženýrství, 2013-06)
    In this paper, we study the impact of secondary user (SU) sensing range on spectrum access opportunity in cognitive radio networks. We first derive a closed-form ex- pression of spectrum access opportunity by taking into ...
  • Tensor-based Match Pursuit Algorithm for MIMO Radar Imaging 

    Huang, P.; Li, X.; Wang, H. (Společnost pro radioelektronické inženýrství, 2018-06)
    In MIMO radar, existing sparse imaging algorithms commonly vectorize the receiving data, which will destroy the multi-dimension structure of signal and cause the algorithm performance decline. In this paper, the sparsity ...