lat - latitude (rad) alt - altitude (meters) fpa - horizontal flight path angle (rad) az - flight path aximuth (rad) v - speed (meters/sec) 3.7.6 atbOrbDelToCart 作用：将两行（Delaunay）根数根数转换成直角坐标下的位置速度 用法：[pos, vel] = atbOrbDelToCart(delElems, gravParam) 3.7.7 atbOrbEquiToCart 作用：将春分（equinoctial）根数根数转换成直角坐标下的位置速度 用法：[pos, vel] = atbOrbEquiToCart(equiElems, gravParam) 3.7.8 atbOrbModToCart 作用：将两行（Delaunay）根数根数转换成直角坐标下的位置速度 用法：[pos, vel] = atbOrbDelToCart(delElems, gravParam) 3.7.9 atbOrbSphereToCart 作用：将两行（Delaunay）根数根数转换成直角坐标下的位置速度 用法：[pos, vel] = atbOrbDelToCart(delElems, gravParam) 3.7.10 atbOrbMixedSphereToCart 作用：将两行（Delaunay）根数根数转换成直角坐标下的位置速度 用法：[pos, vel] = atbOrbDelToCart(delElems, gravParam) 3.8 轨道根数分量的转换（Orbit Element Parameter Conversions） 3.8.1 atbOrbEccToTrue 作用：偏近点角E转换为真近点角f 用法：trueAnom = atbOrbEccToTrue(eccAnom, eccentricity) 说明：eccAnom - eccentric anomaly (rad) eccentricity - unitless trueAnom - true anomaly (rad) 3.8.2 atbOrbTrueToEcc 作用：真近点角f转换为偏近点角E 用法：eccAnom = atbOrbTrueToEcc(trueAnom, eccentricity) 说明：trueAnom - true anomaly (rad) eccentricity - unitless eccAnom - eccentric anomaly (rad) 3.8.3 atbOrbMeanToTrue 作用：平近点角M转换为真近点角f 用法：trueAnom = atbOrbMeanToTrue(meanAnom, eccentricity) 说明：meanAnom - mean anomaly (rad) eccentricity - unitless trueAnom - true anomaly (rad) 3.8.4 atbOrbTrueToMean 作用：真近点角f转换为平近点角M 用法：meanAnom = atbOrbTrueToMean(trueAnom, eccentricity) 说明：trueAnom - true anomaly (rad) eccentricity - unitless meanAnom - mean anomaly (rad) 3.8.5 atbOrbLanToRaan 作用：升交点经度（地理）转化为升交点赤经（天球） 用法：raan = atbOrbLanToRaan('cbName', lan, curTime, tpan) 说明：cbName - valid central body name, e.g. 'Earth' lan - longitude of ascending node (rad) curTime - current time (sec) tpan - time past ascending node (sec) raan - right ascension of ascending node (rad) 3.8.6 atbOrbRaanToLan 作用：升交点赤经（天球）转化为升交点经度（地理） 用法：lan = atbOrbRaanToLan('cbName', raan, curTime, tpan) 说明：cbName - valid central body name, e.g. 'Earth' raan - right ascension of ascending node (rad) curTime - current time (sec) tpan - time past ascending node (sec) lan - longitude of ascending node (rad) 3.8.7 atbOrbPeriRadToPeriod 作用：近地点向径转化为轨道周期 用法：period = atbOrbPeriRadToPeriod(perigreeRad, eccentricity, gm) 说明：perigreeRad - perigree radius (meters) eccentricity - unitless gm - gravitational parameter, see atbCbGravParam period - orbit period (sec) 3.8.8 atbOrbPeriodToPeriRad 作用：轨道周期转化为近地点向径 用法：perigreeRad = atbOrbPeriodToPeriRad(period, eccentricity, gm) 说明：perigreeRad - perigree radius (meters) eccentricity - unitless gm - gravitational parameter, see atbCbGravParam period - orbit period (sec) 3.8.9 atbOrbPeriRadToSMajAxis 作用：近地点向径转化为轨道半长轴 用法：semimajorAxis = atbOrbPeriRadToSMajAxis(perigreeRad, eccentricity) 说明：perigreeRad - perigree radius (meters) eccentricity - unitless semimajorAxis - semimajor axis length (meters) 3.8.10 atbOrbSMajAxisToPeriRad 作用：轨道半长轴转化为近地点向径 用法：perigreeRad = atbOrbSMajAxisToPeriRad(semimajorAxis, eccentricity) 说明：perigreeRad - perigree radius (meters) eccentricity - unitless semimajorAxis - semimajor axis length (meters) 3.8.11 atbOrbTPANToTrue 作用：过升角点时转化为真近点角 用法：trueAnom = atbOrbTPANToTrue(tpan, argOfPerigree, sma, eccentricity, gm) 说明：tpan - time past ascending node (sec) argOfPerigree - argument of perigree (rad) sma - semimajor axis length (meters) eccentricity - unitless gm - gravitational parameter, see atbCbGravParam trueAnom - true anomaly (rad) 3.8.12 atbOrbTrueToTPAN 作用：真近点角转化为将过升角点时 用法：tpan = atbOrbTrueToTPAN(trueAnom, argOfPerigree, sma, eccentricity, gm) 说明：tpan - time past ascending node (sec) argOfPerigree - argument of perigree (rad) sma - semimajor axis length (meters) eccentricity - unitless gm - gravitational parameter, see atbCbGravParam trueAnom - true anomaly (rad) 3.8.13 atbOrbTPPToTrue 作用：过近地点时转化为真近点角 用法：trueAnom = atbOrbTPPToTrue(tpp, sma, eccentricity, gm) 说明：tpp - time past perigree (sec) sma - semimajor axis length (meters) eccentricity - unitless gm - gravitational parameter, see atbCbGravParam trueAnom - true anomaly (rad) 3.8.14 atbOrbTrueToTPP 作用：过近地点转化为时真近点角 用法：tpp = atbOrbTrueToTPP(trueAnom, sma, eccentricity, gm) 说明：tpp - time past perigree (sec) sma - semimajor axis length (meters) eccentricity - unitless gm - gravitational parameter, see atbCbGravParam trueAnom - true anomaly (rad) 3.9 DTED操作（DTED operations） 3.9.1 atbCbListDtedTypes 作用：列出中心体的所有数据类型 用法：typeInfo = atbCbListDtedTypes('cb') 说明：cb - central body name typeInfo - structure array with following fields: id - terrain type string, possible values are: MRAS NIMADMED NIMAFILE MTOP DEM XTRA MOLA CONVERTEDMOLA provider formalName fileSuffix 3.9.2 atbCbListDted 作用：列出中心体的所有数据源 用法：[sources, rect] = atbCbListDted('cb') 说明：cb - central body name sources - cell array of source file names rect - matrix of boundarys [minLon maxLon minLat maxLat] for each source (rad) 3.9.3 atbCbAddDtedSource 作用：给中心体增加DTED 用法：atbCbAddDtedSource('cb', 'type', 'filePath') 说明：cb - central body name type - valid terrain file type, choices are: MRAS NIMADMED NIMAFILE MTOP DEM XTRA MOLA CONVERTEDMOLA filePath - full file path 3.9.4 atbCbDtedSourceUI 作用：用一个GUI管理地球DTED 用法：atbCbDtedSourceUI 备注：Associates terrain files with Earth. 3.9.5 atbLoadNimaDted 作用：递归加载压缩包中所有的NIMA DTED 用法：atbLoadNimaDted(rootFolder, wildcard) 说明：rootFolder - string name of the root folder to recurse wildcard - optional file name filter, default is '*.dt*' 3.9.6 atbCbRemDtedSource 作用：删除中心体的DTED 用法：atbCbRemDtedSource('cb', 'fileName') 说明：cb - central body name fileName - a string or cell array of strings use the string 'ALL' to remove all files use atbCbListDted to obtain an array of loaded files 3.9.7 atbCbGetDtedSourceForPos 作用：获取周围地形数据 用法：sources = atbCbGetDtedSourceForPos('cbName', lat, lon) 说明：cbName - valid central body name, e.g. 'earth' lat - geodetic latitude (radians) lon - geodetic longitude (radians) sources - cell array of terrain sources with boundaries encompassing lat/lon 3.9.8 atbGetDtedPatch 作用：获取DTED的句柄 用法：h = atbGetDtedPatch('cb', minLon, maxLon, minLat, maxLat) h = atbGetDtedPatch('cb', rect) 说明：cb - central body name minLon - minimum longitude of bounding box (rad). maxLon - maximum longitude of bounding box (rad).