کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7154289 1462498 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
DME Interference mitigation for L-DACS1 based on system identification and sparse representation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
DME Interference mitigation for L-DACS1 based on system identification and sparse representation
چکیده انگلیسی
L-band digital aeronautical communication system 1 (L-DACS1) is a promising candidate data-link for future air-ground communication, but it is severely interfered by the pulse pairs (PPs) generated by distance measure equipment. A novel PP mitigation approach is proposed in this paper. Firstly, a deformed PP detection (DPPD) method that combines a filter bank, correlation detection, and rescanning is proposed to detect the deformed PPs (DPPs) which are caused by multiple filters in the receiver. Secondly, a finite impulse response (FIR) model is used to approximate the overall characteristic of filters, and then the waveform of DPP can be acquired by the original waveform of PP and the FIR model. Finally, sparse representation is used to estimate the position and amplitude of each DPP, and then reconstruct each DPP. The reconstructed DPPs will be subtracted from the contaminated signal to mitigate interference. Numerical experiments show that the bit error rate performance of our approach is about 5 dB better than that of recent works and is closer to interference-free environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Aeronautics - Volume 29, Issue 6, December 2016, Pages 1762-1773
نویسندگان
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