{"id":395358,"date":"2024-11-26T14:27:27","date_gmt":"2024-11-26T14:27:27","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/guanyubsdflichengheyuanchangtoushedewenti\/"},"modified":"2024-11-26T14:27:27","modified_gmt":"2024-11-26T14:27:27","slug":"guanyubsdflichengheyuanchangtoushedewenti","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/guanyubsdflichengheyuanchangtoushedewenti\/","title":{"rendered":"\u5173\u4e8eBSDF\u4f8b\u7a0b\u548c\u8fdc\u573a\u6295\u5c04\u7684\u95ee\u9898"},"content":{"rendered":"<p>&lt;p&gt;\u60a8\u597d\uff1a&lt;\/p&gt;&lt;p&gt;\u6700\u8fd1\u6211\u5728\u53c2\u8003BSDF\u4f8b\u7a0b\u8ba1\u7b97\u53cc\u5411\u53cd\u5c04\u5206\u5e03\u51fd\u6570\uff08BRDF\uff09\u65f6\u9047\u5230\u4e00\u4e9b\u95ee\u9898\u3002\u4f8b\u7a0b\u7684simple.lsf\u811a\u672c\u4e2d\u9996\u5148\u4f7f\u7528up\u9762\u63a5\u6536\u4e0a\u65b9\u6563\u5c04\u5f3a\u5ea6\uff0c\u7136\u540e\u7528gratingpolar\u83b7\u5f97\u4e0d\u540c\u89d2\u5ea6\u7684\u6563\u5c04\u7684\u8fdc\u573aE^2\uff0c\u518d\u5c06\u955c\u9762\u53cd\u5c04\u53bb\u6389\uff0c\u63a5\u7740\u5bf9\u5404\u4e2a\u65b9\u4f4d\u89d2\u4f7f\u7528farfield3dintegrate\u83b7\u5f97\u4e00\u5b9a\u89d2\u5ea6\u5185\u7684E^2\u79ef\u5206\uff0c\u5e76\u6309\u7167\u4e0b\u9762\u7684\u65b9\u5f0f\u6c42BRDF\uff0c\u6700\u540e\u5c06\u7ed3\u679c\u5f52\u4e00\u5316\u5230\u751f\u6210\u7c97\u7cd9\u9762\u7684\u7406\u8bba\u503c\u3002&lt;\/p&gt;&lt;p&gt;for(i=1:(length(phi)-1)) {&lt;\/p&gt;&lt;p&gt;result = result + farfield3dintegrate(E2*cos_theta,ux,uy,5,theta,phi(i)) \/ (farfield3dintegrate(0*E2+1,ux,uy,5,theta,phi(i))+1e-20); #\u6c42BRDF&lt;\/p&gt;&lt;p&gt;}&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;\u6211\u7684\u95ee\u9898\u662f\uff1a&lt;\/p&gt;<\/p>\n<ol>\n<li>\u5728\u8fd9\u4e2a\u4f8b\u7a0b\u7684\u811a\u672c\u4ee3\u7801\u4e2d\uff0c\u6709\u4e00\u884c\u83b7\u53d6gratingpolar\u4e4b\u540e\u7684E2 = (BSDF_up.E2) *(1+transmission(&#8220;BSDF::up&#8221;));\u4e3a\u4ec0\u4e48\u8fd8\u9700\u8981\u591a\u52a0\u4e00\u4e2a\u900f\u5c04\u7684\u7cfb\u6570?\uff0c\u8fd9\u91cc\u5bfc\u81f4\u6700\u540e\u7684total_power_R\u52a0\u8d77\u6765\u5927\u4e8e1<\/li>\n<li>\u6309\u7167\u5e38\u89c1\u7684BRDF\u5b9a\u4e49\uff0cBRDF = dP_s \/ (d&Omega;_s * Pi * cos&theta;_s)\uff0c\u5982\u4f55\u7406\u89e3\u4ee3\u7801\u4e2dBRDF\u7684\u8ba1\u7b97\u65b9\u5f0f\uff0c\u5b83\u662f\u5982\u4f55\u5b9a\u4e49\u7684\uff1f\u5206\u6bcd\u7684(farfield3dintegrate(0*E2+1,ux,uy,5,theta,phi(i))+1e-20\uff09\uff0c\u5b83\u7684\u610f\u601d\u5e94\u8be5\u662f\u5c06E^2=1\u7684\u5f3a\u5ea6\u6cbfux,uy\u57285&deg;\u5185\u79ef\u5206\uff0c\u5f97\u5230\u7684\u662f5&deg;\u5bf9\u5e94\u7684\u7acb\u4f53\u89d2\u3002\u6211\u7406\u89e3\u7684\u4ee3\u7801\u7684\u5b9a\u4e49\u662fBRDF\uff08&theta;_s\uff09 = Es^2 *cos&theta;_s \/ \uff08&Omega;_s*1^2)\uff0c\u8fd9\u4e0e\u5e38\u89c1\u7684\u5b9a\u4e49\u4e0d\u540c\uff0c\u53e6\u5916Ps\/Pi \u4e0eEs^2 \/ Ei^2\u662f\u5426\u76f8\u7b49\uff1f<\/li>\n<li>\u6211\u5982\u4f55\u51c6\u786e\u83b7\u53d6\u8fd9\u4e00\u4e2a5&deg;\u534a\u89d2\u79ef\u5206\u533a\u57df\u7684\u529f\u7387Ps\uff1f\u53ef\u4ee5\u4f7f\u7528P=&eta; E^2 *A\u76f4\u63a5\u83b7\u5f97\u5417\uff0c\u8fd9\u6837\u7684\u7ed3\u679c\u4e0e\u4f7f\u7528\u6ce2\u5370\u5ef7\u77e2\u91cf\u8ba1\u7b97\u662f\u5426\u76f8\u540c\uff1f<\/li>\n<li>\u5982\u679c\u6211\u4e0d\u4f7f\u7528\u4f8b\u7a0b\u4e2d\u7684BSDF\u5206\u6790\u7ec4\uff08\u5206\u6790\u7ec4\u4e2d\u4f7f\u7528gratingpolar\u83b7\u53d6\u7279\u5b9a\u7ea7\u6b21\u65b9\u5411\u7684E^2\uff09\uff0c\u800c\u76f4\u63a5\u5728\u4e0a\u65b9\u7528\u76d1\u89c6\u5668\u83b7\u53d6\u8fd1\u573a\u5206\u5e03\uff0c\u518d\u8fdc\u573a\u6295\u5c04\u52301m\u7403\u9762\uff0c\u8fd9\u6837\u5c31\u80fd\u83b7\u5f97\u66f4\u591a\u7684\u65b9\u5411\u548c\u6570\u636e\u70b9\uff0c\u8fd9\u6837\u83b7\u5f97\u7684E2\u662f\u5426\u662f\u548cgratingpolar\u83b7\u5f97\u7684\u76f8\u540c\uff1f<\/li>\n<\/ol>\n<p>&lt;p&gt;\u8c22\u8c22&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-395358","topic","type-topic","status-publish","hentry","topic-tag-bsdf","topic-tag-far-field-1","topic-tag-gratings-farfield-2","topic-tag-poweranalysis-1","topic-tag-scattering"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["418428","799"],"_bbp_author_ip":["50.114.153.249"],"_btv_view_count":["202"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["395358"],"_bbp_forum_id":["27835"],"_bbp_engagement":["418428","799"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["397939"],"_bbp_last_active_id":["397939"],"_bbp_last_active_time":["2024-12-19 03:22:56"]},"test":"40b96bacfbfda3f9e99352b5820ad85b300fdd69"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/395358","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/395358\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=395358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}