全球卫星导航系统（GNSS）是一种基于卫星的导航系统，可以提供全球范围内的位置、速度和时间信息。其中最著名的就是美国的GPS系统。GPS接收设备是GNSS系统的核心组成部分，其性能直接影响到GNSS系统的精度和可靠性。

IEC 61108-1:2003标准规定了GPS接收设备的性能标准、测试方法和测试结果要求。其中，性能标准包括位置精度、时间精度、速度精度、灵敏度、动态性能、多路径抑制等指标。测试方法包括静态测试和动态测试，静态测试主要测试位置精度和时间精度，动态测试主要测试速度精度和动态性能。测试结果要求包括测试数据的格式、测试数据的处理方法、测试数据的精度等。

该标准的实施可以保证GPS接收设备的性能符合国际标准，提高GNSS系统的精度和可靠性，促进GNSS技术的应用和发展。

相关标准
- IEC 61108-2:2003 Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 2: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results for narrowband receivers
- IEC 61108-3:2003 Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 3: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results for wide area augmentation system (WAAS) airbourne equipment
- IEC 61108-4:2004 Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 4: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results for shipborne receiver equipment
- IEC 61108-5:2004 Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 5: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results for satellite emergency position indicating radio beacon (EPIRB) search and rescue (SAR) receivers
- IEC 61108-6:2004 Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 6: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results for doppler speed log (DSL) equipment