CN-122001451-A - Method, device, data center and storage medium for aircraft trajectory monitoring

CN122001451ACN 122001451 ACN122001451 ACN 122001451ACN-122001451-A

Abstract

The invention discloses a method, a device, a data center and a storage medium for aircraft track monitoring, wherein the method comprises the steps of determining multiple the Star Wen Fuben corresponding to each broadcast type automatic correlation monitoring ADS-B message sent by a current aircraft in message data streams acquired from multiple time-synchronized satellites, determining solving position information of the current aircraft corresponding to each ADS-B message according to time difference between receiving times of two satellites in each group of multiple the Star message copies, performing cleaning optimization to obtain corresponding optimized position information, determining sending time of each ADS-B message sent by the current aircraft according to the optimized position information and the corresponding satellite state, and determining the motion track of the current aircraft according to the sending time and the corresponding optimized position information. The accuracy of space-time positioning is improved.

Inventors

DI FENGPING
SHANG HAIYING
LEI NUO
PAN JIANFENG

Assignees

时空拓远(北京)科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260318

Claims (10)

1. A method for aircraft trajectory monitoring, comprising: Determining a plurality of units the Star Wen Fuben corresponding to each broadcast automatic correlation monitoring ADS-B message sent by a current aircraft in message data streams acquired from a plurality of satellites with time synchronization, wherein the message data streams comprise the ADS-B message received by each satellite, the receiving time and the satellite state; determining the solving position information of the current aircraft corresponding to each ADS-B message according to the time difference between the receiving time of two satellites in each group of multiple the Star message copies, cleaning and optimizing the decoding position information decoded by each ADS-B message according to the solving position information, and obtaining the corresponding optimized position information; determining the sending time of each ADS-B message sent by the current aircraft according to the optimized position information and the corresponding satellite state; And determining the motion trail of the current aircraft according to the sending time of each ADS-B message sent by the current aircraft and the corresponding optimized position information.
2. The method of claim 1, wherein determining a multiple the Star message copy for each ADS-B message sent by the current aircraft comprises: determining a current multi-star candidate message according to unique identity information of a current aircraft in message data streams acquired from a plurality of satellites in the current first sliding window time; and determining the current multi-star candidate message which is acquired from two or more satellites and has consistent content bytes as a current multi-the Star message copy.
3. The method of claim 1, wherein determining solution location information for a current aircraft corresponding to each ADS-B message comprises: Constructing a hyperbolic positioning equation shown in a formula (1) according to a time difference delta t {i,j} between receiving times corresponding to the current ADS-B messages received by two satellites; Solving a hyperbola positioning equation to obtain corresponding solving position information P ac when the current aircraft sends a current ADS-B message; c Δt {i,j} =│P ac P sati │ │P ac P saj │ (1) wherein c is the speed of light, and P sati 、P satj is the position information corresponding to the two satellites when each satellite receives the current ADS-B message.
4. The method of claim 1, wherein the performing the cleaning optimization on the decoded position information decoded for each ADS-B message comprises: decoding the current ADS-B message to obtain current decoding position information; And under the condition that the position difference value between the current solving position information corresponding to the current ADS-B message and the current decoding position information is larger than a set value, determining the current solving position information as the current optimized position information.
5. The method of claim 4, wherein the performing the cleaning optimization on the decoded position information decoded for each ADS-B message further comprises: And determining the current decoding position information as the current optimized position information under the condition that the position difference value is smaller than or equal to the set value, or performing weighted average according to the current solving position information and the current decoding position information, and determining the obtained position information as the current optimized position information.
6. The method of any of claims 1-5, wherein the determining the current aircraft motion profile comprises: Inputting data points formed by the sending time and the optimized position information into a Kalman filter; And obtaining a four-dimensional motion track of the current aircraft, which is output by the Kalman filter after prediction and updating according to the constant velocity CV model or the constant acceleration CA model, wherein the four-dimensional motion track comprises longitude, latitude, altitude and time.
7. An apparatus for aircraft trajectory monitoring, comprising: The acquisition grouping module is configured to determine a plurality of pieces the Star Wen Fuben corresponding to each broadcast automatic correlation monitoring ADS-B message sent by the current aircraft in message data streams acquired from a plurality of satellites which are synchronized in time, wherein the message data streams comprise the ADS-B message received by each satellite, the receiving time and the satellite state; the determining and optimizing module is configured to determine solving position information of the current aircraft corresponding to each ADS-B message according to the time difference between the receiving time of two satellites in each group of multiple the Star message copies, clean and optimize decoding position information decoded by each ADS-B message according to the solving position information, and obtain corresponding optimized position information; The backtracking determining module is configured to determine the sending time of each ADS-B message sent by the current aircraft according to the optimized position information and the corresponding satellite state; The track determining module is configured to determine the motion trail of the current aircraft according to the sending time of each ADS-B message sent by the current aircraft and the corresponding optimized position information.
8. An apparatus for aircraft trajectory monitoring, the apparatus comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for aircraft trajectory monitoring of any one of claims 1 to 6 when executing the program instructions.
9. A data center is characterized by comprising an equipment body; an apparatus for aircraft trajectory monitoring as claimed in claim 7 or 8, mounted to the device body.
10. A storage medium storing program instructions which, when executed, perform a method for aircraft trajectory monitoring as claimed in any one of claims 1 to 6.

Description

Method, device, data center and storage medium for aircraft trajectory monitoring Technical Field The present invention relates to the field of satellite technologies, and in particular, to a method, an apparatus, a data center, and a storage medium for aircraft trajectory monitoring. Background With the sustainable development of the air transportation industry in China, the flying flow is increased increasingly, and the traditional monitoring facilities and technologies cannot well meet the requirement of rapid development of air traffic control due to the defects of low precision, narrow coverage, high operation cost, insufficient safety and the like. The Broadcast automatic correlation monitoring (Automatic Dependent Surveillance-Broadcast, ADS-B) has outstanding advantages in various aspects such as accuracy, reliability, integrity and operation cost by virtue of high data update rate and rich on-board and aerial information, and becomes an important component in a new navigation system, so that the aircraft can be monitored according to ADS-B messages sent by the aircraft received by satellites. However, due to the lack of a transmit time stamp for ADS-B messages, conventional single satellite data processing cannot determine when and where (precise location) the messages were generated by the aircraft, and therefore, the accuracy of aircraft trajectory monitoring remains to be improved. Disclosure of Invention In order to solve the above problems in the prior art, the present invention provides a method, apparatus, data center and storage medium for aircraft trajectory monitoring. The technical problems to be solved by the invention are realized by the following technical scheme: a first aspect of an embodiment of the present invention provides a method for aircraft trajectory monitoring, comprising: Determining a plurality of units the Star Wen Fuben corresponding to each broadcast automatic correlation monitoring ADS-B message sent by a current aircraft in message data streams acquired from a plurality of satellites with time synchronization, wherein the message data streams comprise the ADS-B message received by each satellite, the receiving time and the satellite state; determining the solving position information of the current aircraft corresponding to each ADS-B message according to the time difference between the receiving time of two satellites in each group of multiple the Star message copies, cleaning and optimizing the decoding position information decoded by each ADS-B message according to the solving position information, and obtaining the corresponding optimized position information; determining the sending time of each ADS-B message sent by the current aircraft according to the optimized position information and the corresponding satellite state; And determining the motion trail of the current aircraft according to the sending time of each ADS-B message sent by the current aircraft and the corresponding optimized position information. A second aspect of an embodiment of the present invention provides an apparatus for aircraft trajectory monitoring, comprising: The acquisition grouping module is configured to determine a plurality of pieces the Star Wen Fuben corresponding to each broadcast automatic correlation monitoring ADS-B message sent by the current aircraft in message data streams acquired from a plurality of satellites which are synchronized in time, wherein the message data streams comprise the ADS-B message received by each satellite, the receiving time and the satellite state; the determining and optimizing module is configured to determine solving position information of the current aircraft corresponding to each ADS-B message according to the time difference between the receiving time of two satellites in each group of multiple the Star message copies, clean and optimize decoding position information decoded by each ADS-B message according to the solving position information, and obtain corresponding optimized position information; The backtracking determining module is configured to determine the sending time of each ADS-B message sent by the current aircraft according to the optimized position information and the corresponding satellite state; The track determining module is configured to determine the motion trail of the current aircraft according to the sending time of each ADS-B message sent by the current aircraft and the corresponding optimized position information. A third aspect of an embodiment of the present invention provides an apparatus for aircraft trajectory monitoring, the apparatus comprising a processor and a memory storing program instructions, the processor being configured to perform the above-described method for aircraft trajectory monitoring when executing the program instructions. A fourth aspect of the present invention provides a data center, including an apparatus body; The device for aircraft trajectory monitoring is mounted to the apparatus