Multichannel PCM optimum source selection control method

Abstract

The invention belongs to a technology of flight test telemetering and real-time monitoring, relates to technologies such as a multichannel telemetering data real-time transmission technology, a data fusion technology and an optimum source selection technology, and particularly relates to a multichannel PCM optimum source selection control method. along with the increasingly high importance of a telemetering real-time monitoring technology in the aspects of ensuring the test flight safety and improving the test flight efficiency, how to ensure the telemetering data to be accurately transmitted and received in real time becomes a problem which needs to be solved immediately especially in complex and risky test flight subjects in ultra-low altitude, large-airspace and the like. Preferential selection is performed on telemetering signals of multiple telemetering sites by using the multichannel PCM optimum source selection control method, thereby intelligently switching to output of the optimum PCM data stream, effectively integrating multichannel PCM data into a PCM data stream, expanding the telemetering airspace while improving the telemetering data quality, and ensuring stable and continuous transmission of the telemetering signals.

Description

technical field [0001] The invention belongs to flight test telemetry and real-time monitoring technology, relates to multi-channel telemetry data real-time transmission technology, data fusion technology, optimal source selection and other technologies, in particular to a multi-channel PCM optimal source selection control method. Background technique [0002] As telemetry real-time monitoring technology is becoming more and more important in ensuring flight test safety and improving flight test efficiency, especially in complex risk test subjects such as ultra-low altitude and large airspace, how to ensure real-time and accurate reception and transmission of telemetry data has become an important issue. Urgent problems. In view of the limited working distance of existing telemetry antennas, and the need to maintain a line of sight between the target and the antenna during the telemetry tracking process, multiple telemetry stations are usually used for relay tracking when co...

AI Technical Summary

Problems solved by technology

[0004] In the process of receiving flight test telemetry data, the multi-channel telemetry PCM data is fused and processed, and the data output with better signal quality is automatically selected to ensure stable and continuous transmission of telemetry data, and solve the problem of data jumps caused by manual switching. At the same time, the flyable airspace has been expanded to improve flight test efficiency and ensure the smooth completion of test subjects

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