GAMIT添加自定義接收機(jī)天線

1、GAMIT添加自定義接收機(jī)天線第一步：在rcvant.dat添加接收機(jī)和天線信息1.1添加接收機(jī)信息特別說明，格式必須嚴(yán)格執(zhí)行！在文件中RECEIVERS部分添加 接收機(jī)的簡碼(RECCOD)、IGS代碼(IGS 20-char code)、描述(Description)下面為英文格式說明：The (new) flags in column 37 for receivers indicate how differential code biases are tobe treated:P : receiver is cross-correlat ing and requires correcti

2、o n of P2 and C1Rogue SNR, Trimble 4000, etc.C : receiver is non-cross-correlati ng but reports C1 in stead of P1Trimble 4700, 5700, Leica RS500, CRS1000, SR9600, etc. un less AS is offN : receiver is non-cross-correlati ng and reports true P1, P2Blank indicates that we have not determined the corre

3、ct flag and GAMIT will stop untilthis file is modified to reflect the correct description of the receiver.#RECCOD IGS 20-char code | Description (comme nt field) #format(1x,a6,8x,a20)|#示例：添加 天寶NETR9 (假設(shè)不存在，其實存在的)TRNTR9 TRIMBLE NETR9 C | L1/L2+L2C/L5 GLONASS L1/L2 with 2 Maxwell-6 ASIC, eth + SBAS, 4

4、40 cha nnel1.2添加天線信息特別說明，格式必須嚴(yán)格執(zhí)行！在文件中ANTENNAS部分添加 天線的簡碼(ANTCOD)、天線IGS代碼(IGS 20-char code)、描述(Description)下面為英文格式說明：Note: The 20-character RINEX code for antennas includes as of July 4, 1999, a desig nati onof 15 characters for the antenna, the 16th charcater is bla nk, and characters 17-20 arereser

5、ved for antenna cover (radome) codes. The codes are tabulated at the end of this file.#ANTCOD FULL_NAME|#format(1x,a6,8x,a15,1x,A4)|#示例：添加 天寶TRM57970.00 (假設(shè)不存在，其實存在的)TRZG2R * TRM57970.00| Zephyr GNSS II - RoHS compliantsolder L1/L2/L5/G1/G2/G3/E1/E2/E5ab/E6/Compass以上步驟是在rcva nt.dat中添加天線和接收機(jī)信息，主要是將接收

6、機(jī)全名和天線全名分別對 應(yīng)一個6位的簡碼！，文件格式須嚴(yán)格一致。第二步：在hi.dat天線量高方式文件這里添加的是天線高量取方式，標(biāo)準(zhǔn)的Rinex文件中是量取到了天線盤的底部(Bottom of an te nna),但是有些量取到了邊緣等地方，需要用勾股定律計算實際的值。一般情況下，直接量取到天線底部，再通過天線改正參數(shù)修正到相位中心。下面為英文格式說明：Some antennas have equivale nces coded in gamit/lib/hisub.f and are give n here only on ce.If the antenna you want is no

7、t in the equivale nee, list, however, you can add it to the table.A warning will be issued for en tries miss ing from the table, and offsets set = 0. entries of L1PHC or UNKNWN DHARP are both given 0. offsets with no war ning.#Format (1x,a20,1x,a6,1x,f6.4,1x,f6.4)20-char RINEX code 6-cha

8、r GAMIT code 5-char HI code vert offset (m) horiz offset (m)上面的大體意思的，如果在hi.dat中沒有找到，則修正值為0,通常也是這么個修正值，就 是直接量取到底座的直線距離，如果硬要添加默認(rèn)的，則對于的GAMIT代碼為DHARP實例：TRM57970.00TRZG2R DHARP 0.0.! ARP is pre-amp base其實默認(rèn)是0也就可以不用添加。意思是TRM57970.00這個天線 簡碼為TRZG2R量取方式為DHARP ()文件中，會根據(jù)rinex選擇GAMIT code的，DHARP等信息會自動添加。一般 情況下載hi.dat中無需添加，因為找不到的即設(shè)置為0.第三步，在antmod.dat文件中添加天線改正信息現(xiàn)在antmod.dat文件內(nèi)的數(shù)據(jù)格式igs的atx是兼容的，仔細(xì)看會發(fā)現(xiàn)，antmod.dat文 件其實是igs?.atx的鏈接，其中? ?為具體名稱。