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Narrow-band continuous wave signal multi-station positioning and tracking method

A signal and narrowband technology, applied in the field of narrowband continuous wave signal multi-station positioning and tracking, can solve the problems of high cost, unfavorable large-scale node expansion, and low positioning accuracy

Active Publication Date: 2021-02-05
中国人民解放军32802部队
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Problems solved by technology

[0008] Aiming at the problems of low positioning accuracy, high cost and unfavorable expansion of large-scale nodes in the existing passive positioning method of narrowband continuous wave signal, the present invention provides a narrowband continuous Wave signal high-precision measurement positioning and tracking method

Method used

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  • Narrow-band continuous wave signal multi-station positioning and tracking method
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  • Narrow-band continuous wave signal multi-station positioning and tracking method

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Embodiment Construction

[0070] In order to better understand the contents of the present invention, an example is given here.

[0071] The invention discloses a narrowband continuous wave signal multi-station positioning and tracking method, comprising the following steps:

[0072] S1, the main measurement station, referred to as the master station, the master station obtains the performance parameter indicators of itself and its subordinate sub-measurement stations (referred to as the sub-station), including frequency range, single-channel bandwidth, detection sensitivity, beam coverage under the coordinate system of the main station Range, noise figure, channel gain, maximum number of concurrent tasks and distribution coordinates of secondary stations, the main station searches for signals within a certain distance and frequency working range, finds and selects multiple target signals, and for each signal, its surrounding All secondary stations are sorted, and the top N secondary stations are selec...

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Abstract

The invention discloses a narrow-band continuous wave signal multi-station positioning and tracking method, which comprises the following steps that: a main measurement station acquires the performance indexes of the main measurement station and auxiliary measurement stations thereof, and discovers and selects a plurality of target signals; a multi-target measurement task is scheduled and allocated, and a measurement instruction is sent to each auxiliary station; the main measurement station and the auxiliary stations are subjected to clock synchronization and receive a target signal at the same time; after each auxiliary station completes a target measurement task, a measurement result is transmitted to the main measurement station through a data link; the main station and the auxiliary stations directly solve the target position according to a space curve determined by the target measurement data, and optimize the target position through a filtering algorithm to form a target track;and the main station outputs a position updating result of the auxiliary stations to optimize the positions of the auxiliary stations. According to the invention, the distributed cooperation efficiency is optimally improved, the transmission congestion risk is reduced, and the multi-target positioning and tracking performance is improved by adopting the modes of task scheduling and allocation, data overall transmission, bottom layer burst synchronization and the like.

Description

technical field [0001] The invention belongs to the field of passive positioning in communication countermeasures, and specifically relates to a narrowband continuous wave signal multi-station positioning and tracking method. Background technique [0002] The communication signals in the ultra-short wave band are generally narrow-band continuous signals, and the positioning of such signals has high application value. In the field of passive positioning, because the equipment composition of each sub-measurement station used in the distributed multi-station positioning technology is relatively simple, and the positioning cost is low, it has gradually become the development direction and research focus of communication countermeasure technology. [0003] The existing positioning and tracking methods for narrowband continuous wave signals mainly have the following problems: [0004] First, when the number of measurement network topology nodes used increases and the number of no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02G01S5/06
CPCG01S5/0294G01S5/06
Inventor 杨健肖德政刘传文侯进永邢伟宁刘杰田震
Owner 中国人民解放军32802部队
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