Beidou carrier wave adaptive tracking loop implementation method based on weight adjustment

Abstract

The invention discloses a Beidou carrier wave adaptive tracking loop implementation method based on weight adjustment. The Beidou carrier wave adaptive tracking loop implementation method based on weight adjustment includes the following steps: 1) measuring a received signal of a receiver and the phase error of a local copy carrier wave; 2) calculating the dynamic state of carrier, and updating the loop order weight; 3) calculating the carrier-to-noise ratio of a satellite signal; 4) according to the dynamic state of carrier, obtained in the step 2, and according to the carrier-to-noise ratio, obtained in the step 3, solving the optimal band width of the second order and third order loops in the current state through an iteration mode, and updating the optimal band width to the corresponding loop; and 5) updating the carrier NCO controlled variable. The Beidou carrier wave adaptive tracking loop implementation method based on weight adjustment increases a carrier-to-noise ratio detection link, a loop order weight adjusting link, a carrier dynamic state detection link and an adaptive bandwidth adjusting link on the basis of the loops of a traditional receiver, thus improving the dynamic performance and the phase demodulation accuracy of the traditional receiver.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes how analyzing certain aspects of wireless communication can improve its ability for accurate reception of data transmitted over radio waves or other types of electromagnetic radiation (EMR). It suggests developing a system called Binetronic Phase Lock Loop (BPL) which combines both analog circuits and digital circuitry techniques to enhance their effectiveness against various disturbances such as interference from external sources like radar systems. Additionally, this research provides technical means for optimizing the tunable frequency range used during the transmission of data packets based on environmental changes and reducing induced errors associated therewith. Overall, these improvements help make better use of mobile devices' capabilities and reduce potential issues related to carrier track identification.

Problems solved by technology

This patented technical problem addressed by the current systems described in the patents relates to improving the quality of signals captured from an indoor location (Beiad) based on precise navigational data or timely updates about them during certain stages of their operation. Current receivers have limitations due to excess strain caused by high levels of static pressure applied thereon while walking around inside buildings where pauses occur frequently throughout the day.

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