{"id":6019,"date":"2018-12-18T17:29:30","date_gmt":"2018-12-18T17:29:30","guid":{"rendered":"https:\/\/www.litepoint.com\/products\/adaptive-dpd-software\/"},"modified":"2019-08-20T23:37:40","modified_gmt":"2019-08-20T23:37:40","slug":"adaptive-dpd-software","status":"publish","type":"products","link":"https:\/\/www.litepoint.com\/zh-hant\/products\/adaptive-dpd-software\/","title":{"rendered":"Adaptive DPD Software"},"content":{"rendered":"<span class=\"intro-text\">Adaptive Digital Pre-Distortion (DPD) is a software tool within the zScript test executive for power amplifier (PA) and front-end module (FEM) characterization and testing.<\/span>\n<p>Many of the latest WLAN transceiver chipsets employ DPD techniques to improve PA linearity. DPD measures the nonlinearity of the PA, computes an inverse operation, and creates a pre-distorted RF signal that effectively linearizes the PA. In combination with the zSeries PA\/FEM DVT Set, DPD is used to quantify improvements in spectral mask and Error Vector Magnitude (EVM) that will be possible with DPD in-circuit. DPD supports PA\/FEM testing for IEEE 802.11\u00a0WLAN\u00a0and\u00a0LTE\u00a0cellular devices.<\/p>\n<p>In addition to our standard DPD tool, LitePoint has partnered with NanoSemi to provide a new\u00a0Adaptive DPD\u00a0for zSeries PA\/FEM test solution.\u00a0Adaptive DPD\u00a0is targeted towards cellular PA testing with upgraded testing capabilities:<\/p>\n<ul>\n<li>Adaptive learning step optimizes DPD engine for each specific PA architecture<\/li>\n<li>Improves Adjacent Channel Leakage Power Ratio (ACLR)<\/li>\n<li>Improves EVM<\/li>\n<li>Superior performance compared to standard GMP\/LUT based DPD<\/li>\n<li>Crest Factor Reduction (CFR) algorithm achieves &#8220;close-to-minimum&#8221; EVM for target PAPR<\/li>\n<\/ul>\n<p><strong>Advantages<\/strong><\/p>\n<ul>\n<li>Quick and easy method to evaluate DPD effects for PA, FEM or transmitter designs<\/li>\n<li>Automatic optimization of DPD algorithms for specific PA architectures<\/li>\n<li>Out-of-the-box solutions, easy-to-use software<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Digital pre-distortion (DPD) tool in zScript<\/p>\n","protected":false},"featured_media":6020,"template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":"","footnotes":""},"tags":[],"class_list":["post-6019","products","type-products","status-publish","format-standard","has-post-thumbnail","hentry","product-categories-wifi-802-11-zh-hant","product-categories-cellular-zh-hant","product-categories-lte-zh-hant"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - 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