SUPPORT:

1. be able to calculate the sat pos of BDS & Galileo
2. be able to Single postiting by GPS & Galileo

headers/type2code.h

@@ -5,12 +5,11 @@
 #include<stdio.h>
 
 #include"public.h"
-
 /* -------------------------------------------------------------------------- */
-/// @brief 将观测值类型转换为PUBLIC.H中定义的数字代码
-/// @param i 读取循环中传入的循环次数
-/// @param buff 传入的观测值类型
-/// @return 返回观测值代码
+/// @brief converts the observation type to the numeric code defined in PUBLIC.H
+/// @param i reads the number of incoming loops in the loop
+/// @param buff type of incoming observation
+/// @return Returns the obs code
 /* -------------------------------------------------------------------------- */
 int Type2Code(int i, char buff[1000])
 {
@@ -18,41 +17,91 @@ int Type2Code(int i, char buff[1000])
     char code_contrast[4];
     char code_original[4];
     
-    for(int j = 0; j < 19; j++)
-    {
-        memset(code_contrast,0,sizeof(code_contrast));
+    const char L1codeindex[] = "C1CC1SC1LC1XC1PC1WC1YC1MC1AC1BC1Z";//obs type of different frequency 
+    const char L2codeindex[] = "C2CC2SC2LC2XC2PC2WC2YC2MC2IC2QC2X";
+    const char L5codeindex[] = "C5IC5QC5X";
+    const char L6codeindex[] = "C6AC6BC6CC6XC6Z";
+    const char L7codeindex[] = "C7IC7QC7XC7DC7PC7Z";
+    const char L8codeindex[] = "C8JC8QC8X";
+
+    for(int j = 0; j < (strlen(L1codeindex)/3); j++)
+    {   memset(code_contrast,0,sizeof(code_contrast));
         memset(code_original,0,sizeof(code_original));
-        const char codeindex[]="C1CC1SC1LC1XC1PC1WC1YC1M"
-                               "C2CC2SC2LC2XC2PC2WC2YC2M"
-                               "C5IC5QC5X";
-        strncpy(code_contrast, codeindex + 0 + j * 3 , 3);
+        strncpy(code_contrast, L1codeindex + 0 + j * 3 , 3);
         strncpy(code_original, buff + 7 + 4 * i      , 3);
         if(strcmp(code_contrast,code_original) == 0)
-        {
-            code_return = j + 1;
-            break;
-        }
-    }
+        {   code_return = j + 100;
+            return code_return;
+            break;}}
+
+    for (int j = 0; j < (strlen(L2codeindex) / 3); j++)
+    {   memset(code_contrast, 0, sizeof(code_contrast));
+        memset(code_original, 0, sizeof(code_original));
+        strncpy(code_contrast, L2codeindex + 0 + j * 3, 3);
+        strncpy(code_original, buff + 7 + 4 * i, 3);
+        if (strcmp(code_contrast, code_original) == 0)
+        {   code_return = j + 200;
+            return code_return;
+            break;}}
+
+    for (int j = 0; j < (strlen(L5codeindex) / 3); j++)
+    {   memset(code_contrast, 0, sizeof(code_contrast));
+        memset(code_original, 0, sizeof(code_original));
+        strncpy(code_contrast, L5codeindex + 0 + j * 3, 3);
+        strncpy(code_original, buff + 7 + 4 * i, 3);
+        if (strcmp(code_contrast, code_original) == 0)
+        {   code_return = j + 500;
+            return code_return;
+            break;}}
+
+    for (int j = 0; j < (strlen(L6codeindex) / 3); j++)
+    {   memset(code_contrast, 0, sizeof(code_contrast));
+        memset(code_original, 0, sizeof(code_original));
+        strncpy(code_contrast, L6codeindex + 0 + j * 3, 3);
+        strncpy(code_original, buff + 7 + 4 * i, 3);
+        if (strcmp(code_contrast, code_original) == 0)
+        {   code_return = j + 600;
+            return code_return;
+            break;}}
+
+    for (int j = 0; j < (strlen(L7codeindex) / 3); j++)
+    {   memset(code_contrast, 0, sizeof(code_contrast));
+        memset(code_original, 0, sizeof(code_original));
+        strncpy(code_contrast, L7codeindex + 0 + j * 3, 3);
+        strncpy(code_original, buff + 7 + 4 * i, 3);
+        if (strcmp(code_contrast, code_original) == 0)
+        {   code_return = j + 700;
+            return code_return;
+            break;}}
+
+    for (int j = 0; j < (strlen(L8codeindex) / 3); j++)
+    {   memset(code_contrast, 0, sizeof(code_contrast));
+        memset(code_original, 0, sizeof(code_original));
+        strncpy(code_contrast, L8codeindex + 0 + j * 3, 3);
+        strncpy(code_original, buff + 7 + 4 * i, 3);
+        if (strcmp(code_contrast, code_original) == 0)
+        {   code_return = j + 800;
+            return code_return;
+            break;}}
+
     return code_return;
 }
 
 /* -------------------------------------------------------------------------- */
-/// @brief 将读取的观测值类型匹配类型代码存储数组
-/// @param typecode 希望匹配的观测值
-/// @param typenum 观测值类型总数量
-/// @param typearr 类型代码存储数组
-/// @return 返回对应的观测值类型代码的数组位置
+/// @brief the type of the obs value read matches the type code stored in an array
+/// @param typecode obs type that you want to match
+/// @param typenum the total number of obs types
+/// @param typearr type codes store arrays
+/// @return returns the array position of the corresponding obs type code
 /* -------------------------------------------------------------------------- */
 int Code2Type(int typecode, int typenum, int typearr[36])
 {
     int pos;
     for (pos = 0; pos < typenum; pos++)
-    {
-        if (typearr[pos] == typecode)
-        {
-            break;
-        }
-    }
+    {   if (typearr[pos] == typecode)
+        {   break; 
+            return pos;}}
+
     return pos;
 }