Four-channel noise signal lossless compression device

Abstract

The invention discloses a four-channel noise signal lossless compression device. The system comprises a data acquisition module, FPGA logic control module, Data communication module, wherein the dataacquisition module is used for acquiring analog signals output by four paths of noise sensors, inputting the analog signals into the FPGA logic control module, controlling a global logic time sequenceby the FPGA logic control module, and transmitting digital quantity subjected to analog-to-digital conversion into the DSP algorithm implementation module; The DSP algorithm implementation module operates a compression algorithm to compress the received digital quantity, and the Flash storage module stores the compressed data and transmits the compressed data to the next-level data communicationmodule in real time. The DSP algorithm implementation module executes state signal query, quantized data reading, data compression, SDRAM reading and writing and data output operation in a polling mode, and the DSP algorithm implementation module adopts an ARC algorithm. The DSP + FPGA dual-controller hardware architecture utilizes the advantages of the FPGA and the DSP to the greatest extent, andprocesses four paths of telemetry noise signals in real time.

Description

technical field [0001] The invention relates to the field of data lossless compression, in particular to a four-channel noise signal lossless compression device, which is suitable for compression processing after data collection by a remote measurement system in an aircraft. Background technique [0002] The telemetry system plays a pivotal role in the research process of the aircraft, mainly including obtaining the data of the working state parameters and environmental parameters of each system in the flight test, so as to determine the performance of the aircraft and carry out related failure analysis. The performance of the telemetry system is closely related to the development process of the aircraft, and the improvement of the performance of the aircraft mainly depends on the improvement of the performance of the telemetry system. [0003] Telemetry parameters mainly include three types of parameters: analog quantity, digital quantity and switch quantity. Among them, a...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of lossless compression of noise data in the telemetry system, the present invention provides a four-channel noise signal lossless compression device

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