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A Radio Frequency Autonomous Relative Attitude Measurement System Applicable to Cluster Targets

A technology of relative attitude and measurement system, which is applied in the field of navigation and positioning, and can solve the problems of inability to measure the relative attitude of two targets, long measurement period, and inability to measure relative attitude.

Active Publication Date: 2017-01-11
CHINA ACAD OF LAUNCH VEHICLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the antenna part of the radio frequency autonomous relative attitude measurement device often adopts a transmitting antenna and a receiving antenna, a transmitting antenna and two receiving antennas, three independent transmitting and receiving antennas, a transmitting and receiving common antenna and two receiving antennas, etc. In this way, these devices can realize the measurement of the relative distance or relative position between two targets. Some of these devices cannot measure the relative attitude, and other parts need multiple members to measure each other at the same time and synthesize the measurement data of multiple members. To obtain relative attitude information, these devices are unable to achieve direct relative attitude measurement between two targets
In addition, the current radio frequency autonomous relative attitude measurement devices all adopt a time-division working method, that is, only one member of the measurement device transmits signals in each time slot, while other members can only receive signals, so that it takes multiple time slots to complete a measurement cycle , the larger the number of members in the cluster, the longer the measurement period, which will affect the real-time performance of the measurement, or the number of members in the cluster has to be limited in order to ensure real-time performance

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  • A Radio Frequency Autonomous Relative Attitude Measurement System Applicable to Cluster Targets
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  • A Radio Frequency Autonomous Relative Attitude Measurement System Applicable to Cluster Targets

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Embodiment Construction

[0065] The present invention is a radio frequency autonomous relative attitude measurement system suitable for cluster targets, comprising two sets of relative attitude measurement devices with the same structure, and the relative attitude measurement is completed by respectively receiving and sending ranging signals through the two devices. The radio frequency autonomous relative attitude measurement system device designed by the present invention, such as figure 1 As shown, it includes 2 transmit antennas T1, T2, 3 receive antennas R1, R2, R3, 2 RF transmit channels TC1, TC2, 3 RF receive channels RC1, RC2, RC3, 3 auxiliary RF channels AC1, AC2 , AC3, 1 baseband processing module, and high stability time base module, among which 3 auxiliary RF channels are divided into 1 auxiliary RF receiving channel, 2 dual-mode auxiliary RF channels, and dual-mode auxiliary RF channels can be It is controlled by the baseband to work in the transmitting state and the receiving mode respect...

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Abstract

The invention relates to a radio-frequency autonomous relative attitude measurement system applied between cluster objects. The system comprises two sets of relative attitude measurement devices with identical structures. Each set of devices include two transmitting antennas, three receiving antennas, two radio-frequency transmitting channels, three radio-frequency receiving channels, an auxiliary radio-frequency receiving channel, two dual-mode auxiliary radio-frequency channels, a baseband processing module, and a high-stability time-based module. The two sets of relative attitude measurement devices respectively receive and sending ranging signals, so that relative attitude measurement of a master member and a slave member can be completed without the need to use observation data provided by other cluster members. Therefore, when parts of members in the target cluster become valid, the relative attitude measurement function can still be provided normally. In addition, with the system, the real-time performance of whole-cycle calculation as well as the real-time performance and operation flexibility of the equipment can be improved.

Description

technical field [0001] The invention relates to a radio navigation and positioning device, in particular to a radio frequency autonomous relative attitude measurement system suitable for cluster targets, suitable for autonomous relative attitude measurement between cluster targets, and belongs to the field of navigation positioning. Background technique [0002] With the continuous development of measurement technology, the research on relative attitude measurement technology between multiple targets has become an important direction. [0003] The radio frequency autonomous relative attitude measurement device is composed of multiple transmitting antennas, receiving antennas, radio frequency transmitters, radio frequency receivers and baseband processing modules. When the RF autonomous relative attitude measurement device is used for autonomous relative attitude measurement between cluster targets, each member needs to install a set of autonomous relative attitude measuremen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/14
CPCG01S5/14
Inventor 张凤杨昕欣曹建文李喆王新忠费智婷王华姚国伟夏耘王倩邓志均岑小锋
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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