GB/T 35765-2017 in English

Standard Framework and Technological Evolution

As the technical foundation for my country's land border management, this standard integrates the dual needs of diplomatic treaty execution and surveying and mapping technology. Compared with the earlier versions, the 2017 version has the following major enhancements:

Core Technical Requirements

4.3

When using the dual-frequency GNSS receiver for geodetic joint survey, the following must be met:

• Instrument nominal accuracy: 5mm+1ppm·d in the plane
• Single-point observation time: ≥12 hours
• Point position error after adjustment: ≤0.2m

4.7 Accuracy control system

Standardization of operation process

6.2 Joint aerial photography

Key control points:

7.3 Boundary marker management

Original numbering rule:

• Double boundary marker: 2(1)/2(2)
• Triple boundary marker: 3(1)/3(2)/3(3) arranged clockwise
• Auxiliary boundary marker: basic number/auxiliary serial number

Quality Control of Results

8.2 Inspection and Acceptance Mechanism

Implement three-level quality control:

1. Process Inspection: 100% self-inspection + mutual inspection
2. Final Inspection: Full inspection + on-site spot check
3. Acceptance: Document integrity check

Appendix Application

The 7 informative appendices provided by the standard constitute a complete document system, including:

• Appendix B Boundary Marker Coordinate Table: Contains Projection Band Conversion Calculation
• Appendix F External Decoration of the Figure: Standard Five-Color Printing Scheme