Installation With The Multipath Effect Caused By Reflection; Scenarios To Be Avoided - Huawei AISU User Manual

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Figure 2-3 Installation with electromagnetic radiation

2.2.2 Installation with the Multipath Effect Caused by Reflection

GPS has high reception sensitivity. It is sensitive to multipath signals. Severe multipath
effects have an impact on direction determination. In principles, the AISU cannot be used in
reflection scenarios. If the AISU needs to be used in reflection scenarios, install it in the way
shown in Figure 2-4.
Figure 2-4 Installation with the multipath effect
Restricted by the GPS performance, existing test results indicate that obstructions on the top
of the antenna, electromagnetic radiation, and multipath effect caused by the complex
environment and harsh climate seriously affect the test precision. As the factors are complex
in actual application, the guide for installing the AISU in complex scenarios will be updated
subsequently.

2.2.3 Scenarios to Be Avoided

Do not install the AISU in scenarios where the AISU will be totally blocked. For example, do
not install the AISU inside a landscaping antenna or under the eave of a stadium.
Issue 02 (2017-06-12)
5 m
Avoid the main
lobe of the
radiation source
2 m
Cabinets
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Far away from the
radiation source
2 Application Scenarios
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