{"id":602,"date":"2012-04-06T11:07:05","date_gmt":"2012-04-06T03:07:05","guid":{"rendered":"https:\/\/www.fly19.net\/?p=602"},"modified":"2012-04-06T11:07:05","modified_gmt":"2012-04-06T03:07:05","slug":"rdh%e5%92%8ctch","status":"publish","type":"post","link":"https:\/\/www.fly19.net\/?p=602","title":{"rendered":"RDH\u548cTCH"},"content":{"rendered":"

\u5728\u7ffb\u9605\u6e29\u5dde\u7684\u56fd\u5185\u822a\u56fe\u65f6\uff0c\u6211\u53d1\u73b003\u53f7ILS\u7684\u56fe\u4e0a\u5199\u7684\u662fRDH\uff0c\u4f46\u662f03\u53f7RNAV(GNSS)\u7684\u56fe\u4e0a\u5199\u7684\u662fTCH\u3002 \"\"<\/a> \"\"<\/a><\/p>\n

\u76f8\u540c\u7684\u6570\u503c\u5374\u7528\u4e0d\u540c\u7684\u540d\u5b57\u8868\u793a\uff0c\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462\uff1f<\/p>\n

\u6211\u5148\u53bb\u627e\u4e86AIP\u7684\u7b80\u5b57\u7b80\u8bed\uff0c\u53d1\u73b0\u53ea\u6709\u201cRDH”\u7684\u5b9a\u4e49\uff1a\u201cReference datum height (for ILS)\u4eea\u8868\u7740\u9646\u7cfb\u7edf\u57fa\u51c6\u6570\u636e\u70b9\u9ad8\u201d<\/p>\n

ICAO\u5bf9\u4e8e\u4e24\u8005\u7684\u5b9a\u4e49\u4e3a\uff1a
\nRDH = \u00a0Reference datum height (RDH). The height of the extended glide path or a nominal vertical path at the runway\u00a0threshold.
\nTCH =\u00a0Threshold crossing height<\/p>\n

\u5728\u5fae\u535a\u4e0a\u95ee\u4e86\u4e00\u4e9b\u4eba\uff0cCAVOK_\u794e<\/a>\u544a\u8bc9\u4e86\u6211\u4e00\u4e2a\u975e\u5b98\u65b9\u7684\u7b54\u6848\uff1a<\/p>\n

\u201cTCH and RDH are one in the same, but in the real world the radiated signal is influenced by the surrounding environment resulting in the TCH and RDH not necessarily being equal.\u201d<\/p><\/blockquote>\n

\u6211\u5728FAA\u4e0a\u53c8\u627e\u5230\u4e86\u4e2a\u6587\u4ef6\uff1a\u201cASSESSMENT OF THE EFFECTIVENESS OF THE RDH\/ARDH EVALUATION\u00a0METHODOLOGY FOR THE ILS GLIDE SLOPE<\/a>\u201d<\/p>\n

\u6211\u53ea\u662f\u7c97\u7565\u5730\u770b\u4e86\u4e00\u4e9b\u56fe\u7247\uff0c\u5927\u6982\u660e\u767d\u662f\u4ec0\u4e48\u9053\u7406\u4e86\u3002\u5728\u4ee5\u524d\uff0c\u5f53\u4e00\u4e2a\u4e0b\u6ed1\u9053\u5efa\u7acb\u597d\u4e4b\u540e\uff0c\u53ef\u4ee5\u7528\u5b83\u7684\u5b89\u88c5\u89d2\u548c\u8bbe\u5907\u79bb\u8dd1\u9053\u5165\u53e3\u7684\u8ddd\u79bb\u6765\u6362\u7b97\u51fa\u4e0b\u6ed1\u9053\u4fe1\u53f7\u5728\u8dd1\u9053\u5165\u53e3\u4e0a\u65b9\u7684\u9ad8\uff0c\u79f0\u4e4b\u4e3aTCH\uff0c\u8ba1\u7b97\u65b9\u6cd5\u89c1\u4e0b\u56fe\uff1a<\/p>\n

\"\"<\/a><\/p>\n

\u540e\u6765\uff0c\u56e0\u4e3a\u53d7\u73af\u5883\u7684\u5f71\u54cd\uff0c\u5b9e\u9645\u7684\u4e0b\u6ed1\u9053\u4fe1\u53f7\u548c\u7406\u60f3\u7684\u4e0b\u6ed1\u9053\u4fe1\u53f7\u4e4b\u95f4\u6709\u533a\u522b\uff0c\u6240\u4ee5\u8ba1\u7b97\u7684TCH\u548c\u5b9e\u9645\u7684TCH\u4e4b\u95f4\u4e5f\u6709\u5dee\u522b\uff1a<\/p>\n

\"\"<\/a><\/p>\n

\u518d\u540e\u6765\uff0c\u5e72\u8106\u7528\u98de\u673a\u53bb\u98de\u4e00\u904d\uff0c\u6d4b\u91cf\u5b9e\u9645\u7684\u4e0b\u6ed1\u9053\u8def\u5f84\uff0c\u5e76\u5728\u8def\u5f84\u4e0a\u9009\u62e9\u4e24\u4e2a\u70b9\uff0c\u753b\u4e00\u6761\u76f4\u7ebf\uff0c\u76f4\u7ebf\u7684\u5ef6\u957f\u7ebf\u5728\u8dd1\u9053\u5165\u53e3\u4e0a\u76f8\u4ea4\u7684\u9ad8\u5c31\u53eb\u505aRDH:<\/p>\n

\"\"<\/a><\/p>\n

\u6587\u4e2d\u7684\u5176\u4ed6\u5185\u5bb9\uff0c\u6211\u5c31\u6ca1\u6709\u4fe1\u5fc3\u770b\u4e0b\u53bb\u4e86\u3002 \u4f46\u662f\u6587\u4e2d28\u9875\uff1a\u201cCOMPARISON – ICAO VERSUS FAA TCH\/RDH\/ARDH METHODS\u201d\u53ef\u4ee5\u770b\u4e00\u4e0b\uff0c\u5b83\u8bf4\u5230\u4e86ICAO\u5bf9TCH\/RDH\u7684\u505a\u6cd5\u3002\u6211\u60f3\u4e2d\u56fd\u5e94\u8be5\u4e5f\u9075\u5faa\u8fd9\u4e2a\u505a\u6cd5\uff1a<\/p>\n

ICAO Doc\u00a08071 \u201cManual on Testing of Radio Navigation Aids: Vol I \u2013 Testing of Ground-Based Radio\u00a0Navigation Aids\u201d [12]. Below is the only RDH reference found in all ILS related ICAO\u00a0documents surveyed:<\/p>\n

Section 4.3.81 Reference Datum Height (RDH)<\/p>\n

\u201cFor commissioning and categorization flight tests, it may be necessary to determine the glide\u00a0path RDH.<\/span> This is done using a high-quality approach recording, from which the angle and\u00a0structure measurements are made. Position-corrected DDM values for a selected portion of the\u00a0approach (typically from Pt A to Pt B for Cat I and the last mile of the approach for Cat II and\u00a0III facilities) are used in a linear regression to extend a best-fit line downward to a point above\u00a0the threshold. The height of this line above the threshold is used as the RDH.<\/span> If the tolerances\u00a0are not met, an engineering analysis is necessary to determine whether the facility should be\u00a0used for the regression analysis, or another type of analytical technique should be used.\u201d<\/p><\/blockquote>\n

\u53ef\u89c1ICAO\u5bf9\u4e8eRDH\u7684\u8bf4\u6cd5\u548c\u7f8e\u56fd\u4eba\u7684\u5dee\u4e0d\u591a\u3002<\/p>\n

—————————————————————————————————————————-<\/p>\n

\u603b\u7ed3\u4e00\u4e0b\uff1a1\uff09RDH\u80af\u5b9a\u6bd4\u5355\u7eaf\u8ba1\u7b97\u7684TCH\u597d\uff0c\u5e94\u4e3aRDH\u8003\u8651\u4e86\u65e0\u7ebf\u7535\u4fe1\u53f7\u53d7\u5e72\u6270\uff0c\u5b9e\u9645\u4e0b\u6ed1\u9053\u4e0d\u7b49\u4e8e\u8ba1\u7b97\u7684\u4e0b\u6ed1\u9053\u7684\u60c5\u51b5\u30022\uff09\u6ca1\u6709\u7535\u5b50\u4e0b\u6ed1\u9053\u7684\u7a0b\u5e8f\uff0c\u5e94\u8be5\u7b97\u4e0d\u51faRDH\u3002\u6240\u4ee5\u8bf4\u6e29\u5dde\u7684RNAV(GNSS)\u7528\u7684\u662fTCH\u8868\u793a\u3002\uff08\u6211\u731c\u7684\uff0c\u6211\u4e5f\u4e0d\u6e05\u695a\u7c7b\u7cbe\u5bc6\u8fdb\u8fd1\u662f\u600e\u4e48\u89c4\u5b9a\u7684\uff0c\u76ee\u524d\u7684\u6587\u4ef6\u770b\u662f\u6ca1\u6709RDH\u3002\uff09<\/p>\n

\u5982\u679c\u771f\u5982\u822a\u56fe\u4e0a\u6240\u5199\u7684\uff0c\u4e2d\u56fd\u8001\u591a\u673a\u573a\u90fd\u7528RDH\uff0c\u90a3\u4e48\u8bf4\u660e\u6211\u4eec\u6c11\u822a\u53d1\u5c55\u662f\u86ee\u5148\u8fdb\u7684\u3002\u56e0\u4e3aICAO\u4e5f\u8bf4\u5230\u201cAllow each member country to determine their need for performing RDH assessments.\u201d\u3002RDH\u975e\u5f3a\u5236\uff0c\u770b\u6765\u6211\u56fd\u662f\u6709\u8d22\u529b\u548c\u80fd\u529b\u6765\u8ba1\u7b97RDH\u7684\u3002\u6211\u731c\u5176\u4e2d\u4e5f\u6709\u90a3\u67b6KingAir\u6821\u98de\u98de\u673a\u7684\u529f\u52b3\uff1f<\/p>\n

\u4f46\u662f\u5e0c\u671b\u4e2d\u56fd\u7684AIP\u4e2d\u5feb\u70b9\u52a0\u4e0aTCH\u7684\u89e3\u91ca\uff0c\u5426\u5219\u4ee5\u540e\u8003\u8bd5\u65f6\uff0c\u88ab\u95ee\u9053TCH\u662f\u4ec0\u4e48\uff0c\u6211\u5c31\u53ef\u4ee5\u7406\u76f4\u6c14\u58ee\u7684\u8bf4\u4e0d\u77e5\u9053\u3002<\/p>\n

\u81f3\u4e8e\u4e3a\u4ec0\u4e48jeppesen\u53ea\u6709TCH\u800c\u6ca1\u6709RDH\uff0c\u6211\u5c31\u96be\u4ee5\u7406\u89e3\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u7ffb\u9605\u6e29\u5dde\u7684\u56fd\u5185\u822a\u56fe\u65f6\uff0c\u6211\u53d1\u73b003\u53f7ILS\u7684\u56fe\u4e0a\u5199\u7684\u662fRDH\uff0c\u4f46\u662f03\u53f7RNAV … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,8,9,20,24,26],"tags":[],"class_list":["post-602","post","type-post","status-publish","format-standard","hentry","category-faa-regulations","category-handbook","category-icao","category-20","category-24","category-26"],"_links":{"self":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts\/602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=602"}],"version-history":[{"count":8,"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts\/602\/revisions"}],"predecessor-version":[{"id":615,"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts\/602\/revisions\/615"}],"wp:attachment":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}