Correlation function test method for arranged effect of aircraft movement measuring sensor
A technique of correlation function, motion measurement, applied in the direction of instruments, time registers, registration/indication of the operation of vehicles, etc., can solve the problem of inability to provide improved methods, coupling, interference and noise without quantification standards, data accuracy reduction, etc. question
Active Publication Date: 2011-01-26
TSINGHUA UNIV
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Problems solved by technology
In the past, the installation of sensors was usually based on experience, and there was no quantitative standard for the coupling, interference and noise in the measurement
Therefore, in this case, the accuracy of the data measured by the sensor will be reduced due to the influence of coupling and interference, and it will be difficult to be detected, let alone an improved method
The sensor data with poor accuracy directly affects the effect of aircraft modeling and flight control
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[0010] Some sensors of the aircraft, such as IMU (Inertia Measurement Unit), AHRS (Attitude Heading Reference System) and magnetometer, are used to obtain important flight data. Accurate flight data is crucial for aircraft model building and flight control. However, since the installation of these sensors is entirely based on intuitive experience, it is difficult to effectively evaluate and optimize the installation effect. In order to make up for the deficiencies of the current sensor installation method, the present invention uses correlation functions to quantitatively compare and optimize the sensor installation, so as to obtain the best installation method.
[0011] For the determination of the installation method, it is necessary to have the excitation command signal input by the aircraft, the output response of the aircraft, the correlation function between the input command signal and the output response, and the corresponding command transmission, data signal detectio...
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The invention relates to a correlation function test method for arranged effects of an aircraft movement measuring sensor, which belongs to the field of flight control of aircraft and is characterized by comprising excitation command signals input into the aircraft, output response of the aircraft, correlation functions of the input command signals and the output response, and corresponding command transmitting, data signal detecting and data recording equipment, wherein the correlation functions are used for testing the correlation extent of the input command signals and the output response, and the command transmitting, data signal detecting and data recording equipment is used for recording input and output signals of the aircraft. The invention can be used for testing and optimizing the arrangement modes of the sensor by judging the value and the change trend of the correlation functions corresponding to different arrangement modes of the aircraft movement measuring sensor.
Description
technical field [0001] The invention utilizes correlation functions to check and optimize the installation of airborne sensors, such as inertial measurement units, attitude and heading reference systems, and magnetic heading instruments. Mainly used in aerospace, aircraft and robotics and other technical fields. Background technique [0002] The airborne sensor is one of the key components of the aircraft, which is used to measure important data such as the attitude, acceleration and angular velocity of the aircraft. In the past, the installation of sensors was usually based on experience, and there was no quantified standard for coupling, interference and noise in the measurement. Therefore, in this case, the accuracy of the data measured by the sensor will be reduced due to the influence of coupling and interference, and it will be difficult to be detected, let alone an improved method. The sensor data with poor accuracy directly affects the effect of aircraft modeling a...
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IPC IPC(8): G07C5/00
Inventor 王冠林夏慧朱纪洪
Owner TSINGHUA UNIV