Implementation method of low-cost multi-channel GNSS tracking integral engine

Abstract

The invention relates to an implementation method of a low-cost multi-channel GNSS tracking integral engine, which comprises the following steps: caching an input radio frequency signal, and storing the input radio frequency signal into a multi-mode radio frequency data cache; and integrating the radio frequency signals in the multi-mode radio frequency data cache in a time-sharing polling manner.On the basis of a traditional tracking integral method, the same calculation part in the integral process of each satellite is fully utilized, a new multi-satellite combined integral engine is designed, and hundreds of integral channels in multiple modes can be realized under the condition of small resource increase.

Description

technical field [0001] The invention relates to the technical field of satellite integration engines, especially for application scenarios where resources are limited but multiple signal modes and more tracking channels need to be supported at the same time. Specifically, it is a method for realizing a low-cost multi-channel GNSS tracking integration engine. Background technique [0002] With the completion and operation of my country's Beidou system and the rapid development of other GNSS (global navigation satellite system) systems (GPS in the United States, GLONASS in Russia, and Galileo in Europe), there will be as many as 90 GNSS satellites in the sky. The integration channel completes the real-time signal tracking integration task. However, the traditional tracking integration method will significantly affect the numerical integration efficiency of multi-system GNSS satellites in terms of chip area and power consumption. Since the integration process of each satellite ...

AI Technical Summary

Problems solved by technology

However, the traditional tracking integration method will significantly affect the numerical integration efficiency of multi-system GNSS satellites in terms of chip area and power consumption.

Since the integration process of each satellite is relatively independent, the traditional method uses satellite-by-satellite integration. This method leads to a proportional increase in integration resources when adding integration channels, and the chip cost and area are unacceptable.

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