Unified direct-current coding method for position, speed, time and attitude information

Abstract

The invention belongs to the technical field of communication, and discloses an unified direct-current coding method for position, speed, time and attitude information. The method comprises the following steps of: designing a unified direct-current code PVTA for position, speed, time and attitude, including design of a PVTA data frame structure, definition of a code element waveform, design of a data transmission mode and provision of a time reference mark; uniformly coding time, position, speed and attitude information by adopting a direct current code format based on the designed PVTA code,and conducting synchronous transmission of the time, position, speed and attitude information. According to the invention, organic combination of position, speed, time and attitude information is realized, transmission of the four kinds of information including the time, position, speed and attitude information can be realized only by one data interface, so the types and the number of the data interfaces are greatly reduced, and the structure of hardware equipment is simplified.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a unified DC encoding method for position, speed, time and attitude information. Background technique [0002] IRIG is short for American Range Instrument Group. The IRIG time standard is divided into two categories, one is a parallel time code format, and the other is a serial time code format. IRIG-B code is a kind of serial time code, its time frame period is 1s, contains 100 symbols, and each symbol period is 10ms; IRIG-B code has three kinds of symbols, the position identification mark P, Binary "1" and "0", the high-level pulse width is 8ms, 5ms and 2ms respectively; every 10 symbols of the IRIG-B code has a position identification mark, a total of P 1 , P 2 , P 3 ,...,P 9 , P 0 Ten position identification marks, their high-level pulse width is 8ms; P R It is the frame reference point (Bing Zhiguang, Shu Kun, Gu Yanfei. Application of IRIG-B code in...

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Problems solved by technology

[0005] The present invention aims at the transmission of position, speed, time and attitude information by adopting the traditional information transmission method, which requires more data interface types and corresponding driver programs, which will cause many system communication lines, poor reliability, and interface debugging workload Large size, the interface circuit is not easy to integrate, etc., a unified DC coding method for position, speed, time and attitude information is proposed, and the position, speed, time, and attitude information are uniformly encoded by DC, and the position, speed, time, and attitude information are realized. The organic combination and simultaneous transmission of

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