Bit synchronization algorithm for maximum likelihood estimation

Abstract

The invention relates to the technical field of large hydropower engineering low-altitude defense systems, in particular to a bit synchronization algorithm for maximum likelihood estimation, which comprises the following steps: S1, defining a system defense area; s2, setting a distributed and multi-node defense system; s3, formulating alarm levels of multiple stages; s4, setting a dual-guarantee working mode; s5, information is comprehensively obtained through the system, and comprehensive evaluation is carried out; and S6, the equipment and the system perform self-inspection, and the system defense area is divided into two parts, namely a core area and a detection early warning area: a, the equipment can form an invisible dome-type protection cover in the core area, and the hierarchical management of the whole area can be completed through the distributed and multi-node defense system; according to the invention, the working efficiency of the system can be effectively improved, the operation process of the system is simplified, the reliability of the system is improved, the detection accuracy and precision of the target can be improved, and the purposes of accurate identification and accurate strike of the low-altitude target are achieved.

Description

technical field [0001] The invention relates to the technical field of low-altitude defense systems for large-scale hydropower projects, in particular to a bit synchronization algorithm for maximum likelihood estimation. Background technique [0002] At present, all countries are stepping up to launch strategies for UAV defense. At this stage, UAV countermeasures generally include radar detection, radio monitoring, signal jamming, laser strikes, and comprehensive technologies. The research and development of foreign anti-UAV systems started earlier, and some market-oriented products have been formed. The research and development of domestic UAV anti-drone systems started relatively late, but it has developed rapidly in the past two years, and some equipment and systems have begun to be put into the market. According to the current domestic research and development situation, the anti-drone system still has the following problems: [0003] (1) Poor adaptability and large bli...

AI Technical Summary

Problems solved by technology

[0003] (1) Poor adaptability and large blind spots: it can only have anti-drone capabilities in a single or certain specific environments, and there is no black and white list function;

[0004] (2) Low indicators and small range: the detection and countermeasure distance of drones is limited and there is no large-scale seamless defense capability;

[0005] (3) The degree of intelligence is not high, and it mostly relies on manual marking, which interferes with the surrounding electromagnetic environment