Time-frequency localization based intelligent wideband spectrum sensing is essential for achieving precise dynamic spectrum access and management. Currently, object detection based detectors can achieve excellent time-frequency localization performance in a simple electromagnetic environment. However, the overlapping of signals in the time-frequency domain can corrupt signal features and degrade detector performance. In this paper, we propose a transformer based robust time-frequency localization (TRTFL) detector that fully extracts the features of the time-frequency domain correlation to improve its robustness in solving the aforementioned problem. Furthermore, to exploit the convolution operation for mining fine-grained features, we embed a convolutional layer with a small kernel in the transformer block. Finally, simulation results validate the advantages of TRTFL compared to existing detectors and demonstrate its robustness for overlapping signals in spectrogram.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    TRTFL: A Transformer Based Robust Time-Frequency Localization Detector for Spectrogram with Overlapping Signals


    Contributors:
    Zhao, Runyi (author) / Ruan, Yuhan (author) / Xu, Huacheng (author) / Li, Tao (author) / Zhang, Rui (author) / Yang, Dong (author) / Li, Yongzhao (author)


    Publication date :

    2024-06-24


    Size :

    373284 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Decision-Directed Detector for Overlapping PCM/NRZ Signals

    Wang, C. David / Noack, Thomas L. | IEEE | 1973


    Time-Frequency Analysis on Pulse Current of Partial Discharge by Adaptive Spectrogram

    Guoli, W. / Yanpeng, H. / Yanming, L. | British Library Online Contents | 2001



    Spectrogram Diagnosis of Aircraft Disasters

    Slingerland, Frank W. | SAE Technical Papers | 1991


    Spectrogram analysis of accelerometer-based spark knock detection waveforms

    Scholl,D. / Barash,T. / Russ,S. et al. | Automotive engineering | 1997