Distributed POS ground demonstration verification system
A POS system and verification system technology, applied in the field of ground testing and key technology verification, can solve the problems of no absolute position and attitude reference, complex distributed POS system, difficult accuracy test and performance verification, etc., to achieve accuracy verification Effect
Inactive Publication Date: 2014-02-26
BEIHANG UNIV
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Problems solved by technology
[0004] However, for the comprehensive aviation remote sensing system and array load integrating multiple remote sensing loads, due to the deflection deformation and vibration of the aircraft body and wings, a single POS cannot measure the positions, Velocity and attitude information
If a POS is installed on each remote sensing load, it will not only bring about a sharp increase in volume, quality, and cost, but also have different system errors between different POS, making it difficult to fuse data from multiple remote sensing loads. Distributed POS system for measuring the position, velocity and attitude of multiple remote sensing loads on the aircraft
[0005] The distributed POS system is complex, and there is no absolute position and attitude reference on the aircraft, so it is difficult to perform accuracy testing and performance verification on it
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[0014] like figure 1 As shown, the present invention is made up of wing simulation system 1, distributed POS system 2, wing dynamic deformation monitoring system 3, wherein wing simulation system 1 is made up of 3 meters long wing simulation board 11 and vibrating table 12, 3 meters The middle part of the wing simulation board 11 is fixedly installed on the vibrating table 12, and 12 small vibrating tables are energized to vibrate according to the engine vibration frequency of a certain aircraft. When the vibrating table 12 vibrates, the wing simulation board is driven to vibrate; distributed POS system 2 is made up of high-precision inertial grade main inertial measurement unit (IMU) 21, GPS receiver 22, GPS antenna 23 and 6 sub-inertial measurement units (IMU) 24, through the height that is installed in the middle of 3 meters wing simulation board 11 The high-precision primary inertial measurement unit 21 and the GPS receiver 22 perform information fusion through Kalman filt...
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A distributed POS ground demonstration verification system mainly comprises a wing simulation system, a distributed POS system, and a wing dynamic deformation monitoring system; the wing simulation system is used to simulate an aircraft wing with dynamic deformation; the distributed POS is mounted on a wing simulating plate of the wing simulation system, and measures position, speed and attitude information of different points on the wing simulating plate; the wing dynamic deformation monitoring system monitors the dynamic deformation of the wing simulating plate; by the comparison of the measurement results of the wing dynamic deformation monitoring system and the measurement results of the distributed POS, the testing of distributed POS position and attitude precision is realized. The distributed POS ground demonstration verification system of the invention can examine the precision of the distributed POS system on ground, and has the characteristics of high precision and simple experiment.
Description
technical field [0001] The invention relates to a distributed POS ground demonstration verification system, which is suitable for the ground test and key technology verification of the distributed POS system. Background technique [0002] Aerial remote sensing is a strategic high technology that uses aircraft as an observation platform to obtain large-scale, high-precision, and multi-level spatial information on the earth's surface and surface layer by using imaging payloads. It plays a major role in national economic construction and national security. A highly competitive technology field. [0003] With the rapid development of my country's economy, aerial remote sensing continues to develop in the direction of high resolution, high precision, integration of multiple remote sensing loads and array loads. Aerial remote sensing to achieve high-precision imaging requires the aircraft to move in a straight line at a uniform speed. However, due to factors such as airflow distu...
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IPC IPC(8): G01C25/00
Inventor 刘百奇房建成钟麦英郭佳张舟
Owner BEIHANG UNIV