Matches in SemOpenAlex for { <https://semopenalex.org/work/W2553685114> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W2553685114 abstract "As we all know, in broadband arrays situation, the beam width would narrow down with the increasing of frequency, which means the signal spectrum would be distorted in the interested frequency domain. Frequency-invariant beam pattern (FIBP) is the one whose amplitude keep almost constant in the specified range. For the superiority of the FIBP, quantities of work have been done recent years, however, almost all of these works require a large number of elements to get frequency invariant (FI) characteristics in the required mainlobe region. We now propose a new method to synthesize a frequency-invariant multi-beam pattern with space-frequency nulls, in which we can save the element number as many as possible. Besides, the pattern with multiple simultaneous FI focused beam which means radiating multiple beams at the same time, would be helpful in element reduction and system cost reduction. In order to get the desired performance, we provide multiple constraints to control the FI property and sidelobe level respectively, such as the spatial response variation (SRV) constraint, the sidelobe constraint and the look-direction constraint. We apply the iterative second-order cone programming (SOCP) along with the reweighted l 1 -norm optimization here to simplify the problem as to minimize the effective filters in filter-and-sum structure. We carry out two examples to validate the effectiveness and advantages of the proposed method. In the first example, we construct multiple FI focused beam patterns (7-beam, 11-beam and 15 beam) and compare the results with those obtained by the methods in literature [1] and [2]. Besides good FI property and exact sidelobe control, results show that the new method performs better in element reduction. In the second example, we construct an 11-beam FI focused pattern with a space-frequency null to make the referred pattern more adaptive to real situation. The results show that not only can the element saving keep good but also can the null reach the desired level (−50 dB) at least." @default.
- W2553685114 created "2016-11-30" @default.
- W2553685114 creator A5017941291 @default.
- W2553685114 creator A5079447328 @default.
- W2553685114 date "2016-08-01" @default.
- W2553685114 modified "2023-09-26" @default.
- W2553685114 title "Synthesis of a sparse linear array with multiple simultaneous frequency-invariant focused beams" @default.
- W2553685114 cites W2066504017 @default.
- W2553685114 doi "https://doi.org/10.1109/piers.2016.7735722" @default.
- W2553685114 hasPublicationYear "2016" @default.
- W2553685114 type Work @default.
- W2553685114 sameAs 2553685114 @default.
- W2553685114 citedByCount "1" @default.
- W2553685114 countsByYear W25536851142019 @default.
- W2553685114 crossrefType "proceedings-article" @default.
- W2553685114 hasAuthorship W2553685114A5017941291 @default.
- W2553685114 hasAuthorship W2553685114A5079447328 @default.
- W2553685114 hasConcept C11413529 @default.
- W2553685114 hasConcept C120665830 @default.
- W2553685114 hasConcept C121332964 @default.
- W2553685114 hasConcept C126255220 @default.
- W2553685114 hasConcept C168834538 @default.
- W2553685114 hasConcept C17744445 @default.
- W2553685114 hasConcept C190470478 @default.
- W2553685114 hasConcept C19118579 @default.
- W2553685114 hasConcept C191795146 @default.
- W2553685114 hasConcept C199539241 @default.
- W2553685114 hasConcept C31972630 @default.
- W2553685114 hasConcept C33923547 @default.
- W2553685114 hasConcept C37914503 @default.
- W2553685114 hasConcept C41008148 @default.
- W2553685114 hasConceptScore W2553685114C11413529 @default.
- W2553685114 hasConceptScore W2553685114C120665830 @default.
- W2553685114 hasConceptScore W2553685114C121332964 @default.
- W2553685114 hasConceptScore W2553685114C126255220 @default.
- W2553685114 hasConceptScore W2553685114C168834538 @default.
- W2553685114 hasConceptScore W2553685114C17744445 @default.
- W2553685114 hasConceptScore W2553685114C190470478 @default.
- W2553685114 hasConceptScore W2553685114C19118579 @default.
- W2553685114 hasConceptScore W2553685114C191795146 @default.
- W2553685114 hasConceptScore W2553685114C199539241 @default.
- W2553685114 hasConceptScore W2553685114C31972630 @default.
- W2553685114 hasConceptScore W2553685114C33923547 @default.
- W2553685114 hasConceptScore W2553685114C37914503 @default.
- W2553685114 hasConceptScore W2553685114C41008148 @default.
- W2553685114 hasLocation W25536851141 @default.
- W2553685114 hasOpenAccess W2553685114 @default.
- W2553685114 hasPrimaryLocation W25536851141 @default.
- W2553685114 hasRelatedWork W1932339015 @default.
- W2553685114 hasRelatedWork W2008365183 @default.
- W2553685114 hasRelatedWork W2010578319 @default.
- W2553685114 hasRelatedWork W2022828816 @default.
- W2553685114 hasRelatedWork W2023897134 @default.
- W2553685114 hasRelatedWork W2046752617 @default.
- W2553685114 hasRelatedWork W2080335076 @default.
- W2553685114 hasRelatedWork W2124344815 @default.
- W2553685114 hasRelatedWork W2125074686 @default.
- W2553685114 hasRelatedWork W2125967891 @default.
- W2553685114 hasRelatedWork W2131487182 @default.
- W2553685114 hasRelatedWork W2145219634 @default.
- W2553685114 hasRelatedWork W2160220074 @default.
- W2553685114 hasRelatedWork W2164710420 @default.
- W2553685114 hasRelatedWork W2169517229 @default.
- W2553685114 hasRelatedWork W2733055568 @default.
- W2553685114 hasRelatedWork W2899335528 @default.
- W2553685114 hasRelatedWork W2918501595 @default.
- W2553685114 hasRelatedWork W3113177570 @default.
- W2553685114 hasRelatedWork W217288495 @default.
- W2553685114 isParatext "false" @default.
- W2553685114 isRetracted "false" @default.
- W2553685114 magId "2553685114" @default.
- W2553685114 workType "article" @default.