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Simulation and experimental results show that extrapolation along the frequency direction does increase the range resolution. While extrapolation along the azimuthal direction improves the cross\u2010range resolution for small angle imaging, it does not improve image resolution of complex\u2010shaped objects for wide angle imaging. Both range and cross\u2010range resolutions can be improved simultaneously for small angle imaging using rectangular format processing if the angular interval and the resolution cells are suitably chosen. A promising application for the algorithms developed is in microwave dynamic imaging.<\/jats:p>","DOI":"10.1002\/ima.1850020105","type":"journal-article","created":{"date-parts":[[2007,3,5]],"date-time":"2007-03-05T21:40:25Z","timestamp":1173130825000},"page":"37-46","source":"Crossref","is-referenced-by-count":12,"title":["Superhigh image resolution for microwave imaging"],"prefix":"10.1002","volume":"2","author":[{"given":"Hsueh\u2010Jyh","family":"Li","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ta\u2010Yung","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sheng\u2010Hui","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,10,20]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1966.4987"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/TAES.1969.309826"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/TAES.1980.308875"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1983.12698"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1029\/RS019i005p01347"},{"key":"e_1_2_1_7_2","unstructured":"Y. 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