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This optical phenomenon shows that a perceived scene can be reconstructed by beam redirection and spatial reorganization. Inspired by this principle, we propose a\n                    <jats:italic>scalable multi\u2010target illusion<\/jats:italic>\n                    based on a\n                    <jats:italic>segmented spatiotemporal metasurface<\/jats:italic>\n                    . It acts as an electromagnetic kaleidoscope and operates through the proposed\n                    <jats:italic>parallel\u2010sequence spectral translation mechanism<\/jats:italic>\n                    (PSTM): one physical aperture is partitioned into independently driven segments, each loaded with a distinct time\u2010varying bias sequence. Under linear frequency\u2010modulated signal illumination, PSTM translates the echo spectrum into multiple independently coded frequency\u2010shifted components. After signal processing by the detector, these sequence\u2010translated spectral components are reconstructed as scalable false targets in the range\u2013velocity plane. Moreover, the reflection amplitudes of individual targets can be further tuned by aperture allocation. A programmable metasurface is designed and fabricated to validate the concept. Experiments demonstrate the generation of two, three, four, and five false targets, with the measured range\u2013velocity features closely matching theoretical predictions. This work extends metasurface\u2010based illusion from single\u2010response modulation to\n                    <jats:italic>scalable multi\u2010target scene reconstruction<\/jats:italic>\n                    with controllable multidimensional features, providing a flexible framework for electromagnetic illusion generation from a single physical aperture.\n                  <\/jats:p>","DOI":"10.1002\/nap2.70316","type":"journal-article","created":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T03:58:07Z","timestamp":1791777487000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Scalable Multi\u2010Target Illusion via a Segmented Spatiotemporal Metasurface"],"prefix":"10.1002","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-5270-8648","authenticated-orcid":false,"given":"Yujie","family":"Hong","sequence":"first","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dan","family":"Liu","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Qian","sequence":"additional","affiliation":[{"name":"Fundamentals Department Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guangzheng","family":"Ren","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-6412-3575","authenticated-orcid":false,"given":"Wenlong","family":"Li","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-7947-7432","authenticated-orcid":false,"given":"Hailin","family":"Huang","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shangjie","family":"Chen","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng","family":"Huang","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huilin","family":"Mu","sequence":"additional","affiliation":[{"name":"Air and Missile Defense College Air Force Engineering University  Xi'an 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