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A method for measuring the angle of a space platform target without servo tracking

A target angle and platform technology, applied in the field of space platform target servo-free tracking angle measurement, can solve the problems of increased volume, weight and power consumption of the angle measurement system, high requirements for the threshold value of the signal-to-noise ratio of the received signal, and limited application range, etc., to achieve Good adaptability to near and far targets, reduced volume, and the effect of avoiding disturbance

Active Publication Date: 2019-07-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

However, on the one hand, this method needs to add an additional sum-difference unit to form a sum-difference beam, and the multi-channel phased array antenna increases the volume, weight and power consumption of the angle measurement system, which is not suitable for space platform applications with demanding resources; On the other hand, this method has high requirements on the signal-to-noise ratio threshold of the received signal, which limits its application range

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  • A method for measuring the angle of a space platform target without servo tracking
  • A method for measuring the angle of a space platform target without servo tracking
  • A method for measuring the angle of a space platform target without servo tracking

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] The present invention provides a method for measuring the angle of a space platform target without servo tracking. The method first uses an angle search algorithm to complete the initial value estimation of a large field of view angle, and then uses an angle tracking loop to track the target angle. Referring to the accompanying drawings and embodiments below, The present invention is described in further detail:

[0029] Before the implementation of the method of the present invention, according to the possible angular range of the target, a wide-angle (large field of view) antenna unit is designed and selected, and the configuration design of the antenna array is completed. There is no specific requirement for the configuration of the antenna array, and the antenna array can be directly fixed Installed on a space platform, it is used to receive ...

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Abstract

The invention discloses a no-servo tracking angle measurement method for a space platform object, and the method comprises the steps: completing the estimation of an initial value of a big view anglethrough an angle search algorithm; carrying out the target angle tracking through an angular tracking ring. The method can reduce the calculation burden of the tracking and calculation of a target angle, and improves the precision.

Description

technical field [0001] The invention belongs to the technical field of microwave radar measurement, and in particular relates to a servoless tracking angle measurement method for a space platform target. Background technique [0002] The angle measurement of space targets is the key to the detection and positioning of space-based space targets. For general radars, narrow beams are usually used to transmit and receive signals, and the coverage of the detection airspace is achieved through mechanical scanning or electronic scanning of the beams. Therefore, the rate of radar time-sharing detection of targets at different positions in a large field of view is low. Under satellite-borne conditions, the mechanical scanning of the radar antenna is not only a weak link in reliability, but also brings certain disturbances to the attitude stability of the satellite. Electronically swept phased array antennas are complex to implement, have low efficiency of high-frequency T / R componen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/68
CPCG01S13/68
Inventor 崔嵬李业晨姚杰韩月涛吴嗣亮梁艺宝沈清
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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