A multi-station positioning and tracking method based on narrow-band continuous wave signal

A signal and narrowband technology, which is applied in the field of narrowband continuous wave signal multi-station positioning and tracking, can solve the problems of unfavorable large-scale node expansion, low positioning accuracy, and high cost, so as to improve data carrying capacity, accuracy, and positioning accuracy Effect

Active Publication Date: 2021-07-30
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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  • A multi-station positioning and tracking method based on narrow-band continuous wave signal
  • A multi-station positioning and tracking method based on narrow-band continuous wave signal
  • A multi-station positioning and tracking method based on narrow-band continuous wave signal

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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: a main measuring station obtains the performance indicators of itself and its auxiliary measuring station, discovers and selects multiple target signals; performs multi-target measuring tasks Scheduling and distribution, and sending measurement instructions to each secondary station; the main and secondary stations perform clock synchronization and receive target signals at the same time; The station directly solves the target position according to the space curve determined by the target measurement data, and optimizes the target position through the filtering algorithm to form the target track; the main station outputs the position update results of the secondary station to optimize the position of the secondary station. The present invention optimizes and improves the efficiency of distributed collaboration, reduces the risk of transmission congestion, and improves the performance of multi-target positioning and tracking by adopting methods such as scheduling and assigning tasks, data overall planning and transmission, and bottom layer burst synchronization.

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 ultrashort wave frequency band are generally narrow-band continuous wave 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 th...

Claims

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Application Information

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Patent Type & Authority Patents(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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