Update README.md

README.md

@@ -72,6 +72,20 @@ The data are available in **csv** format. Each file provides:
 
 Calibration is not applied, and the data is raw in the UWB anchors coordination system. Each dataset includes optional correction coefficients. A preview of each trajectory is available. Synchronized video of most datasets helps visualize the effect of the environment and flight conditions on data variation.
 
+## Structure of Dataset
+
+### UWB Data
+- **[row 1]** 0
+- **[row 2]** Time(sec), Module ID, Range, Self-range error
+
+### IMU Data
+- **[row 1]** 2
+- **[row 2]** Time(sec), angular velocity-x, angular velocity-y, angular velocity-z, linear acc-x, linear acc-y, linear acc-z, orientation quaternion-x, orientation quaternion-y, orientation quaternion-z, orientation quaternion-w
+
+### Height
+- **[row 1]** 3
+- **[row 2]** Height value
+
 
 ## Conclusion
 This comprehensive dataset aims to aid in the development of UWB technologies by providing diverse scenarios and extensive benchmark data for performance testing under different environmental conditions.