A high-speed communication interface and data processing system based on tlk2711

Abstract

A high-speed communication interface and data processing system based on TLK2711, related to the technical field of inertial measurement; including a power supply module, a communication interface module and a data processing module; wherein, the power supply module includes a switching power supply and a linear regulated power supply; the communication interface module includes FPGA, Configuration memory, temperature-compensated crystal oscillator, interface circuit and electrical connector; data processing module includes interface transfer box, board card and computer terminal; power supply module adopts two power supply modes of switching power supply and linear power supply, with high power supply efficiency and good stability; The communication interface module adopts TLK2711 serial interface communication, which reduces the complexity of data interconnection, high data transmission rate, good real-time performance and accuracy; adopts self-synchronization communication mode, high signal clock accuracy; fewer electrical connector pins, simple circuit wiring, Strong anti-interference ability; the data processing end introduces low-pass filter processing to obtain strict linear phase and avoid phase distortion of high-frequency angular displacement data.

Description

technical field [0001] The invention relates to the technical field of inertial measurement, in particular to a TLK2711-based high-speed communication interface and data processing system. Background technique [0002] With the development of the aerospace field, the space remote sensing technology used in communication, meteorology, earth observation, technology experiment and military field is widely used. The data measured by the spacecraft are transmitted to the ground in the form of images for data processing and analysis. Due to the large amount of data, it is necessary to achieve high-speed acquisition and storage. [0003] At present, the data interface levels between the remote sensing satellite payload and the data transmission subsystem generally include transistor logic (TTL) level, emitter coupled logic (ECL) level, RS422 level, low voltage differential signal (LVDS) level, Voltage-mode logic (VML) levels, etc. Among them, the anti-interference ability of the...

AI Technical Summary

Problems solved by technology

However, the increase in the number of parallel circuits will lead to a significant increase in the number of internal auxiliary circuits of the equipment, electrical connectors on the equipment panel, and transmission cables between the equipment, and the size and weight of the equipment and the weight of the cables will increase accordingly, which is not conducive to the development of equipment and system integration.

At the same time, the LVDS interface uses clock synchronization signals. During the transmission process, the clock and data are sent separately. The inconsistency of the instantaneous jitter of each signal will inevitably lead to the decline of transmission quality.

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