تطوير خوارزمية تصنيف الإشارات المتعددة MUSIC لتقدير اتجاه الورود باستخدام هوائي BB-ESPAR-8 للإشارات ذات المجال الترددي العريض

Abstract EN

This article presents a new method of Direction Of Arrival (DOA) estimation technique using Multiple Signal Classification ( MUSIC ) algorithm.

This method is applied to communication signals that work in broadband frequency by using a single RF port of Broad-Band ESPAR Antenna, with eight parasitic radiators (BB-ESPAR-8) [8] The new method depends on dividing the broad frequency band of BB-ESPAR-8 antenna into five sub bands of frequencies.

Each of these bands has, with some approximation, one steering vector.

This paper applies the MUSIC algorithm to all receiving signals in each sub band, and then combines their results, to conclude the final result.

Simulation results show that the proposed method gives a high DOA resolution ( 2 ) for BPSK signals, good DOA resolution (4 ) for the amplitude modulation signals, and a high DOA resolution ( 2 ) for broadband signals.

Some recommendations for the radiation pattern rotational speed were proposed to achieve a good DOA resolution for amplitude modulation signals.

The obtained results from the proposed method illustrate that this new method has a great potential.

Therefore, it xould be used in broadband communication systems.