شماره ركورد كنفرانس :
4517
عنوان مقاله :
Direction of Arrival Estimation of Direct-Sequence Spread-Spectrum Signals
عنوان به زبان ديگر :
Direction of Arrival Estimation of Direct-Sequence Spread-Spectrum Signals
Author/Authors :
Milad Paydari Dept- of Comm. and Elec. Eng. Shiraz University Shiraz-Iran , Alireza Masnadi-Shirazi Dept- of Comm. and Elec. Eng. Shiraz University Shiraz-Iran , Mahmoud Farhang Dept- of Comm. and Elec. Eng. Shiraz University Shiraz-Iran
كليدواژه :
beamforming , DOA , direct -sequence spread spectrum , sparse
سال انتشار :
آبان و آذر 1397
عنوان كنفرانس :
پنجمين كنفرانس ملي رادار و سامانه هاي مراقبتي
چكيده لاتين :
In this paper, we investigate different wideband Direction of Arrival (DOA) estimation methods for directsequence spread-spectrum (DSSS) signals. DOA estimation of DSSS sources is challenging since the information-bearing signals are buried in noise for the purpose of covert communications, thus making their detection extremely difficult, let alone estimating their DOAs. Experimental simulations show that an old approach of steered minimum variance method (STMV) achieves the best results compared to other state-of-the-art subspace and sparse methods, even at adverse scenarios when signal to noise ratio (SNR) is -20dB.
