000153332 001__ 153332
000153332 005__ 20190316234909.0
000153332 0247_ $$2doi$$a10.1111/j.1365-2966.2011.18217.x
000153332 022__ $$a0035-8711
000153332 02470 $$2ISI$$a000289904600048
000153332 037__ $$aARTICLE
000153332 245__ $$aCompressed sensing for wide-field radio interferometric imaging
000153332 269__ $$a2011
000153332 260__ $$bWiley-Blackwell$$c2011
000153332 336__ $$aJournal Articles
000153332 520__ $$aFor the next generation of radio interferometric telescopes it is of paramount importance to incorporate wide field-of-view (WFOV) considerations in interferometric imaging, otherwise the fidelity of reconstructed images will suffer greatly. We extend compressed sensing techniques for interferometric imaging to a WFOV and recover images in the spherical coordinate space in which they naturally live, eliminating any distorting projection. The effectiveness of the spread spectrum phenomenon, highlighted recently by one of the authors, is enhanced when going to a WFOV, while sparsity is promoted by recovering images directly on the sphere. Both of these properties act to improve the quality of reconstructed interferometric images. We quantify the performance of compressed sensing reconstruction techniques through simulations, highlighting the superior reconstruction quality achieved by recovering interferometric images directly on the sphere rather than the plane.
000153332 6531_ $$atechniques: interferometric
000153332 6531_ $$amethods: numerical
000153332 6531_ $$acosmology: observations
000153332 6531_ $$aLTS2
000153332 6531_ $$aLTS5
000153332 6531_ $$aMiPLAB
000153332 700__ $$0242931$$aMcEwen, Jason$$g201873
000153332 700__ $$0240427$$aWiaux, Yves$$g163268
000153332 773__ $$j413$$k2$$q1318-1332$$tMonthly Notices- Royal Astronomical Society
000153332 8564_ $$s1403265$$uhttps://infoscience.epfl.ch/record/153332/files/mcewen_riwfov_v1p1_final.pdf$$zn/a
000153332 909C0 $$0252169$$pMIPLAB$$xU12143
000153332 909C0 $$0252394$$pLTS5$$xU10954
000153332 909C0 $$0252392$$pLTS2$$xU10380
000153332 909CO $$ooai:infoscience.tind.io:153332$$pSTI$$particle$$qGLOBAL_SET
000153332 917Z8 $$x201873
000153332 917Z8 $$x163268
000153332 937__ $$aEPFL-ARTICLE-153332
000153332 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000153332 980__ $$aARTICLE