The increase of signal-to-noise ratio in the spatial separation of signals by the curvature of the wavefront

Aleksandr Okorochkov,Bogdan Malyutin,Gleb Khripkov,H.-G Gross,I.B Sevostyanov,H Khaled,D.A Nguyen,G Karapetyan,I Kudish,V Mladenovic,K Egiazarian,T Abbasian Najafabadi,Y.G Cen,M Minkin

doi:10.1051/matecconf/201822605010

Abstract

The article presents the results of the research of the dependence of the signal-to-noise ratio in the focal spot of the reflecting passive phased antenna array (PPAA), made of planar diffraction elements, on the orientation of the PPAA relative to the structure of the interference field, its dimensions and distance from PPAA plane to the focal spot. The results of the research show that the signal-to-noise ratio mainly depends on the horizontal size of the PPAA. The increase of the vertical size of the array leads to the fact that the focal distance corresponding to the maximum of the signal-to-noise ratio increases with the practically unchanged value of this maximum.

Highlights

Q DFFRUGDQFH ZLWK WKH FRQVWDQW LQFUHDVH LQ YROXPHV DQG UHTXLUHPHQWV IRU WKH TXDOLW\ RI WUDQVPLWWHG LQIRUPDWLRQ WKHUH LV D VKRUWDJH RI IUHTXHQF\ UHVRXUFHV WKDW LV EDQGZLGWKV IRU GDWD WUDQVPLVVLRQ IRU HQVXULQJ WKH UHTXLUHG UHOLDELOLW\ RI UHFHLYLQJ.
/HW XV FRQVLGHU WKH VHFRQG YDULDQW RI WKH 33$$ ORFDWLRQ :KHQ WKH ORQJ VLGH RI WKH 33$$ LV SRVLWLRQHG DORQJ WKH KRUL]RQWDO GLUHFWLRQ WKH GLVWULEXWLRQ RI WKH VLJQDO DPSOLWXGH LQ WKH FRPSXWDWLRQDO GRPDLQ UHPDLQV SUDFWLFDOO\ XQFKDQJHG DQG ZLOO FRUUHVSRQG WR )LJ 7KLV LV GXH WR WKH IDFW WKDW WKH GLVWULEXWLRQ RI WKH DPSOLWXGH RI WKH VLJQDO ILHOG RQ WKH HQWLUH VXUIDFH RI WKH 33$$ IRU DQ\ LWV RULHQWDWLRQ YDULHV LQVLJQLILFDQWO\ EHFDXVH RI WKH UHODWLYHO\ VPDOO VL]H RI WKH 33$$ )LJ
)LJ 7KH GLVWULEXWLRQ RI WKH DPSOLWXGH RI WKH QRLVH ILHOG DORQJ D OLQH SDVVLQJ SDUDOOHO WR WKH ; D[LV WKURXJK WKH IRFXV ZLWK WKH KRUL]RQWDO RULHQWDWLRQ RI WKH ORQJ VLGH RI WKH 33$$

Summary

Introduction

Q DFFRUGDQFH ZLWK WKH FRQVWDQW LQFUHDVH LQ YROXPHV DQG UHTXLUHPHQWV IRU WKH TXDOLW\ RI WUDQVPLWWHG LQIRUPDWLRQ WKHUH LV D VKRUWDJH RI IUHTXHQF\ UHVRXUFHV WKDW LV EDQGZLGWKV IRU GDWD WUDQVPLVVLRQ IRU HQVXULQJ WKH UHTXLUHG UHOLDELOLW\ RI UHFHLYLQJ.

Results

Conclusion