Block Based Frequency Selective Mitigation of Pulsed Interference in the L-Band

Conference: SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding
02/02/2015 - 02/05/2015 at Hamburg, Germany

Proceedings: ITG-Fb 254: 10th International ITG Conference on Systems, Communications and Coding (SCC 2015)

Pages: 6Language: englishTyp: PDF

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Authors:
Hirschbeck, Martin; Huber, Johannes B. (Chair of Information Transmission, University Erlangen-Nuremberg, Erlangen, Germany)

Abstract:
Impulsive interference can be a huge problem for the reliable reception for radio communication systems. L-band Digital Aeronautical Communication System 1 (L-DACS 1) which is based on Orthogonal Frequency Division Multiplexing (OFDM) is one example because its spectrum is located within the frequency range of the impulsive Distance Measuring Equipment (DME). A filter bank is proposed in a companion paper which mitigates this interference by means of subband selective pulse blanking. In addition, we propose a complexity reduced scheme which employs Fast Fourier Transform (FFT) block processing and Hann windowing. It is shown that the proposed approach offers a good trade-off between interference mitigation and complexity.